The only true way to describe the color with words is a "silvery sheen" because nothing else really has the color of silver. So, you just say "silver." Even in poured and polished bars. People who have seen pure silver understand what I mean.
I can't find enough scrap silver to run my cell as much as Sreetips does and only do it as a hobby. He is going for speed, if you have more time and patience than money you can get good results using a lot less chemicals that can get expensive. He is absolutely right, the fumes are dangerous and destructive of any metal in the area even when they aren't strong enough to notice. Ask me how I know.
@@TheMontyYoakum Not much of a story just a fine coating of rust on my welding table, vise, hammers, pliers... This was under an open lean to roof on the side of my shed. If you don't have fume extraction work outdoors when you have a steady breeze or at least a large fan.
I like this site. I use ot all the time when doing reactions, so I don't have to do all the math myself. www.webqc.org/balance.php?reaction=Ag%2BHNO3%3DAgNO3%2BNO2%2BH2O
But there are two different reactions of silver dissolving in nitric acid and the ratio between them is almost impossible to calculate. It depends on temperature and acid concentration. 3Ag+4HNO3 -> 3AgNO3 + 2H2O + NO Ag + 2HNO3 -> AgNO3 + H2O + NO2
@@goranaxelsson1409 he is doing it using hot concentrated acid, so the 2nd reaction will be dominant. You're not gonna get it perfect, but you'll be close.
And we highly appreciate you brother. Oh wow You and Poppa Dean doing a Collab. Sweeeeeeet. Poppa Dean is an awesome guy this is gonna be good. Can’t wait 😎👍🏻💪
Good to see you too brother. Been missing you for sure. Have been hoping to do a hangout with you Mike and the whole crew soon. It’s been too long. We will have to make that happen soon. I sure miss Monday Mayham as well
@@SilverMac47 Hey, , , Grab Skully, Bear and AG Ender and of course the Vulcans. Amongst so many others. Like you I soooo miss the old crew that were soooo much fun. Not that I have anything against any of the new and up and coming folks I just plain miss all our old friends soooo very much.Name a day and time and I will be there with bells on for sure bud.Talk about old Sophie and I are watching "Dr Strangelove" on Turner. Wow that brings back a memory or 8 eh. Take care old friend !
For 105g of pure silver you'd need 57.91ml of 70% nitric acid. Also, do you have an idea of when you'll refine your waste anode baskets? I'd love to see that video. Thanks!
@@sreetips Sounds great! I'm a chemistry undergrad and love watching your videos, mostly because I hope to replicate them as a hobby once I'm out of school. Keep them coming!
There are two different reactions that takes place, the ratio is depending on temperature and acid concentration. Adding the factor of reflux and that some of the acid evaporates it's an impossible problem to calculate a stochiometric ratio for dissolving silver in an open beaker. 3Ag+4HNO3 -> 3AgNO3 + 2H2O + NO Ag + 2HNO3 -> AgNO3 + H2O + NO2
Hello Sreetips. I just want to thank you for all of the wonderful scientific knowledge you’ve provided. You’ve inspired me to follow your lead and take up this hobby. Minus a few pieces of lab equipment I’ve collected enough to refine gold and silver “safely”. Gratefully, with your guidance, I have just succeeded in creating my first batch of silver nitrate! I took my time and slowly added small amounts of concentrated nitric acid to my distilled water over a low/medium heat and made sure not to have any free nitric acid left by checking to make sure the reaction had finished with a small amount of undissolved sterling silver remaining. I still have many questions for you but for now, thank you!
Silver nitrate will stain your skin black for days if it gets on you. Make sure and wear gloves. I like my left over silver BOILING with no fumes in the beaker. With that much heat and no fumes it's safe to conclude that all the nitric has been consumed.
82g of HNO3 (100%) is the stoichiometry for 105g of pure Ag dissolved in hot dilute nitric acid. If % other than 100 refer to the nitric acid table of density, % conc. and mass % to find out what volume of HNO3 u have in hands u shold use.
Fascinating ! Thanks soooo much for the shout my friend. I go to town tomorrow and as far as I know your package is here. A nice clean chip in the camera and away we shall go for ya ! Like yourself I love the comments that come my way.
Poppa Dean this is gonna be an epic Collab my friend. Can’t wait fir this video. I’m excited Gonna be sweet brother. Hows Sophie doin? Hope you and her are well! Love ya brother
Need 43.5mL of 68% Nitric Acid (minimum) to dissolve 105g of pure Silver metal. Will need an excess because the heat and catalytic silver will cause decomposition of some nitric acid into water and nitrogen oxides.
If the level falls from evaporation of water vapour why not top up with distilled water as a first approximation? Removing some 'dirty' electrolyte and replacing with 'pure' electrolyte on some schedule might be more correct in maintaining the electrolyte properties.
Using mole ratios: there is around 0.98 moles of silver. We therefore need 0.98 moles of nitric acid. Provided that the acid is 70% (15.8M) then you only need 61.6 mL to dissolve the silver. You also have to provide enough distilled water for the silver nitrate that forms to be able to dissolve into.
Maybe worthy to mention, even tho it's somewhat pedantic... The silver is being displaced in solution by the other metals... When an atom of say, copper gets eaten off the anode, this corresponds with a silver atom being deposited at the cathode; the goal of course being to replace each atom of silver deposited, with a new one from the anode. So the more impure your silver to start with, the faster the depletion because the impurities make up a higher percentage of the electrolysis activity at the anode, and because the solution is still mostly silver, silver dominates at the cathode. The result, a slow overall loss of silver concentration. You said the same thing in the video, this is just the "under the hood". I only mention this because some are under the impression that metal ions get instantaneously "beamed over" to the cathode or something, that's not how it works. The electrolyte is essentially a buffer for the silver as well as impurities, and has resistance to contamination (at the cathode) due to the reactivity series, which is why it is able to purify. The "wrong" atom (eg copper) gets substituted with a silver atom at the cathode, because it is most willing of the participants to plate out, thereby refining the silver.
.973mol Ag + 1.024mol HNO3 = 0.973mol AgNO3 + 0.051mol NO3H20 Or it can just simply be Ag + HNO3 = AgNO3 + NO3H20 Or am I getting to detailed? There are many variables such as the nitric acid being dilute nitric acid it's not a consistent variable. The ratio of your dilute nitric calculated can be different from any other person's ratio. That's why I think it's just a simple answer. This is a hard one because we dont know exactly what you want for an answer in terms of the stoichiometry. The ratio? The amount of dilute nitric needed for 105 g of Ag? Or the molar masses. Basically can fill a page or two just trying to give an answer of this simply put question. But I do want to say these are so fun since you started incorporating this kinda thing in your clips on the channel. Regards,
It should take about 128.1 ml of distilled water and about 78.75 ml of 70% nitric acid to dissolve 105 grams of pure silver, Ive had many times where i followed the 1.2 to 1.2 ratio but it still had excess nitric, Ive just used .75 ml of nitric per gram of silver and it works every time
That's good to know. So you used 0.75ml times weight of pure silver crystal equals amount, in milliliters, of 70% nitric to completely dissolve the silver? But I need just a little silver left over after the reaction is complete to ensure that all the free nitric has been consumed.
3 Ag(s) + 4 HNO3(aq) --> 3 AgNO3(aq) + NO(g) + 2 H2O (for hot diluted acid) Atomic mass of silver = 107.868 g/mol 105 g Ag = 0.973 moles Ratio 3:4 -> 1.298 moles of HNO3. Or 81.78 g Volume would of course depend on the molarity
Assuming usual conc. Nitric acid (not fuming) is used. ~68% Density of HNO3 is 1.51 g/mL The volume of conc. (68%) HNO3 required would be 79.65 mL. But ~80 should be fine. Very nice videos btw, really like your channel.
@@sreetips Thanks! It was quite a fun activity. Also I'd like to change slightly my answer to 82.15 mL. I was assuming the density was 1.51 (which is correct for 100% nitric). However this is not the case for 68% which is ~15.8 Molar, and so to get 1.298 moles out of this you'll need 82.15 mL. Hopefully that's correct.
I'm going to make a command decision here and declare you right. Please contact me via email with your shipping info. My email is included at the top of my channel description page. Click on "about" to get it. Thank you. Now I'll have to look into going back to school to learn how to do this myself.
The silver cell I am running has run into this issue. I am running shavings from a dore bar which is from a silver inquart smelt. Getting a lot of grey crystal in my cell along with the white silver, assuming it is Pd. I have seen significant Pd and other PGM's with XRF scans of the smelt bars.
Joshua, the impure silver shot should be about 99%, 98% at the least, for electrolytic refining. Lower levels will tend to foul the cell very quickly and start to contaminate the pure silver crystal. You should separate the silver from those bars before trying to run it through your cell. But the silver crystal can be run back through as anode silver through the cell as well.
@@sreetips That's what I am finding. SEM analysis showed it was around 91% silver. I think I'll pour the dore bars into shot and chemically separate it, then run it through the cell to get the silver. Thanks!
Taking the big leap upon getting a smart phone..... I have a few people pushing me to do the same... But, I sure do not mind paying my $8 a month cell phone bill, as compared to what i have looked into on smart phones costs of the units, and the monthly data packages and fees... scares the heck out of me... the cheapest I found in my area, was approx $98 a month, and is equal to what my old school non smart phone has now, for $8 bucks a month... and to make that big stretch to get a smart phone with all the good stuff, its like $300 to $600 a month,,,,, I don't know how people do it. or maybe I am just not very smart on the stuff... either way... A live show with chat, I would really enjoy that and will arrange my money to make a donation during those events.. As always, Thank you and to your lady, for always putting great effort into your teaching content upon this hobby...Dru
Good question!! I have no clue of the answer!! Love that you're starting to put regular videos out again! I've watched all you're videos!! Most of them 2 or more times. You could remake alot of the earlier vids, I'd be willing to bet that there's only a few of us who's seen every video! I think some of your new viewers and die hard fans like me would love to see some remakes of the silent "movie" era!! 😄 Maybe even show a brief comparison of the two styles and how you've grown in this hobby and RUclips channel of yours!! What do you think Sreetips?? Have a GREAT Day My Friend!!!
Looks great., thats some high grade silver and gold from all that,, will do my best to finally get a nice piece this time,, Glad to see the fume hood is back in operation too,,!
Please tell me that is not a stainless steel bowl your using in an electrolysis system. Stainless steel is super dangerous in electrolysis, The chromium in the stainless steel comes out of the metal and becomes hexavalent chromium (Cr6+) which is a strong cancer causing agent even in very small amounts. hexavalent chromium is also a mess to reduce to safe waste and should not be dumped on the ground or down drains. Stay safe and keep up the fun metal work.
@@sreetips Chrome can have 4 different oxidation states 0,+2,+3 and +6 so it will have that also in solution. I'm very short on this subject about Chromate and Cr+6 But I do know it's in some paint, in certain wood to make it durable and the Silver test solution is Chromate. The Chromate Ion contains the Cr6+ ion. I also know from literature it's a strong carcinogenic (mutagenic). I cannot confirm StoneWorlds Leaching of Cr6+ from Stainless steel.
i'm talking about casting the electrode itself in one piece using a sand mold. instead of forging the 'stem' and then casting the 'foot' around it he could do a two part sand mold.
@TMoD7007 his current method for fabricating these electrodes is inefficient. casting it in sand in one piece would be so much easier than the janky 3 torch setup he's suing plus having to forge the stem and then cast the foot around it. could even do a batch of them to save time.
I watched a lot of your stuff, so much I don't remember if you've ever worked with silver plated electrician related scrap. To me that's not just contacts, buss bars and other service panel copper and brass was often plated with silver. Brass prices are paid for such scrap, in my experience.
@@sreetips I'd send you mine for free if I had more. As a hobby I hoard such things. I'd get more enjoyment watching you do your thing than taking it in for brass or copper scrap value.
Stoichiometry Description Stoichiometry is the calculation of reactants and products in chemical reactions. Stoichiometry is founded on the law of conservation of mass where the total mass of the reactants equals the total mass
I'm totally green to all of this but it is very fascinating and I wish I was young agan I would love to have teamed up with you and took over the world.
3Ag + 4HNO3 → 3AgNO3 + NO + 2H2O m(silver)=105g is exactly n(Silver)=0.9733 mol So 1.2977 mol HNO3 are needed, considering concentrated nitric acid as a 15.8 M, 82.1 ml are needed, producing 165.33g of AgNO3. Now, Silver Nitrate solubility is 2570 g per liter of water @ 25ºC, so a total of only 64.3 ml of distilled water are needed to produce a saturated solution. Also, 24.6 ml of that water will come from the concentrated HNO3, plus 11.7 produced by the reaction itself (only 28 ml of distilled water needed to produced a saturated solution @ 25ºC). The final concentration of the cell is up to you, so dilute at will. Cheers!
They gave the same answer. Check his work, Martin Fernandes. I wouldn't know an ionic bond from a covalent. But if you'd like, please contact my via email and we'll see if we can settle this. The last thing I want is hard feelings from anyone.
@@sreetips I can't find his comment. Also, I gave you the entire stoichiometry, even included solubility so you know how much water you need to add, but no worries. As i said: my pleasure. I really enjoy your videos. I have to say, for not being a chemist your manipulation is very good. Stoichiometry is not that complicated, if you use it a bit more, specially for procedures starting from a know, pure substance, it will save you a lot of time and reagents. Have a great day.
@@sreetips you are right! I just saw Martin's comment, for some reason I didn't had the comments organized by date, but by relevance. Again, I really enjoy your videos. Keep posting!
I used the biggest cavity in the graphite mold that would fit down in the anode basket. The first bar I made was only 1 ozt, plus the stem. But it wasn't heavy enough to cause the shot to compress in the basket as it dissolved. So then I made a two troy ounce bar and that worked great.
not a constructive comment at all.. but I am only allowed to watch your videos with headphones on because my wife cant handle the way/number of times (her perception not mine...) you say "caaaper" lololol :) keep up the great work sreetips! btw stoichiometry of nitric and silver.. good one... if i had to take a guess (not going to balance equations here...) i'd say you could probably get away with ~128ml of 70% nitric acid for 105 grams of silver. given enough time one would ponder even a 70/30 split nitric to water of only ~42-43ml of nitric and ~29-30ml distilled water.
If I understood you right you will sand cast silver? I suspect the finish will be very rough and there will be silver wasted during finishing the piece in terms of grinding and polishing. Lost wax casting may be better option.
I have access to all the tools needed to get the chess pieces cleaned up. I expect waste from flashing and trimmings, no problem. I plan to set gem stones in the pieces. It'll be my legacy set. 999 fine silver on one side, 6k gold on the other. I'll use 75% sterling silver alloyed with 25% pure gold. The king will weigh in at around four or five troy ounces.
@@sreetips US law requires that the highest precious metal content be listed first, so stamping the pieces ".750 sterling .250 6K gold alloy" would probably be acceptable. So might using the simple stamp "sterling 6K". Since you are not using white gold, I don't believe the relative proportions of the two metals in the alloy is necessary . Is "sreetips" a registered trademark. The law now requires that if you stamp the precious metal content on the piece, you also stamp it with your registered trademark. Have you verified there is enough difference in color between the alloy and the sterling to easily differentiate the two? Something you could do the reduce the cost is to make all the bases out of sterling and the tops out of the gold/silver alloy. If desired, you could then treat the bases of the alloy "black" pieces with liver of sulfur to make them gray or "black".
Answer Submission with Proof of work. Here is the answer as I understand it. If this works, I think we just found a very easy way of doing it in the future quickly. 105.00 g of Ag requires 123.95 mL of 70% HNO3. Magic ratio is 1.18. You have 105.00g of Ag, you need to know how much 70% HNO3 to add in mL to get that completely dissolved. The formula we are using is Ag + 2 HNO3 = AgNO3 + NO2 + H20 Take the amount of Silver (Ag) you want to dissolve (105.00g Ag) and convert it to moles. The formula requires molar equivalents. Molecular weight of Ag is 107.87 g/mol. So, take your 105.00 g divide by 107.87 g/mol = 0.973 mol Ag You need two moles of HNO3 for every one mole of Ag so 0.973 * 2 = 1.946 moles of HNO3 needed. You use 70% HNO3 solution (That's what I've seen you use, I'm a fan of your channel) So we need to know how many HNO3 moles are in 1 ml of 70% HNO3 by mass. Density of 70% HNO3 is 1.41 g/mL. 70% of that mass is 1.41*0.70=0.987 g/mL Convert that to mol/mL. 0.987 g/mL divided by molecular weight of HNO3 (63.01 g/mol) = 0.0157 HNO3 mol/mL. You need 1.946 moles. So divide again, 1.946/0.0157 = 123.95 mL of HNO3. Now that we know that, we can just create a shortcut ratio for future use (So that we never have to do this again) 123.95 mL of HNO3 / 105 g of Ag = 1.180 mL HNO3 per gram of Ag. We now have a magic ratio. Minimum mL to dissolve _______ grams of Silver? Multiply it by 1.18 and throw in some DI water to give the reaction some space to work in. Note: I tried to be responsible with these calculations (SigFigs I know, I know) because I hope we can all use this Ratio in the future. I did double check my work because this is going public on the internet and that sreetips silver bar would be sweet. But don't just take my word for it, do the math and see what you come up with.
E L, this is very good to know. 1.18 times number of grams of silver to dissolve equals the number of milliliters of 70% nitric to dissolve all the silver. But I do want some undissolved silver, just a little, left in the beaker after all the nitric has been consumed. So maybe 1.10 instead of 1.18 - I may have to do a video on this. Could be very useful. I'll make sure and write this in my notebook. Bravo-Zulu my friend! (Edited once to correct a word)
How many grams of silver did you have to dissolve into silver nitrate in order to fill that silver cell? Looks like about a gallon of liquid, I imagine it was quite a few ounces of silver. Can you dilute it with distilled water, or does it have to be mostly silver nitrate? Thanks
Phil, I use about 600 grams of pure silver crystal dissolved in 3.5 liters of liquid for the electrolyte. The yield averages 1.5 to 1.7 kilos of pure silver crystal. It can be used a second time. But I usually add some more silver nitrate to augment the concentration of silver in the electrolyte for the second run.
Thanks for the quick reply, I sent $20 to your account. My ebay name is 1960katana, I'm not sure if it's the same for my Paypal account, it's been a long time since I set it up. After I process this 15 pounds of silver electrical contacts, I hope to have a couple of ounces of palladium left. I hope to pick you brain some more after I'm done with the silver. I've never processed palladium before, but at $2600 an ounce, I hope to start. Thanks again.
Thank you! They go a long way toward helping me make these videos. I'll try to answer any questions that you have. You can email me. It's under "about" in my channel description.
When you say dilute... what % are you refering to? Im assuming youre starting with 70% nitric and not fuming. If thats the case, ~1.22ml per 1g of Ag is the proportion measure you'd need for a stoichiometric dissolution... (plus at least the same measure of DI/DW as HNO3 to ensure that the AgNO3 says in solution. Looks like J Marie beat me to it though becuase i'm too lazy to multiply 1.22 by 105 :-P I do have a question for you... do you have an LLC that you order through for nitric and your other chemicals? I dont want DEA/ATF/DHS/FBI kicking down my door since a civilian ordered it...
As long as there's not a whole bunch of free nitric then I can't detect any odor. But I run my fume hood 24/7 to remove any accumulation. I wouldn't run it inside my house or living area.
Yes, the used electrolyte is placed in a beaker and copper is added. All the silver and other precious metals "cement" out on the copper. The cement silver is collected, melted into shot,band run throw the cell to make fine silver crystal. If much Pd is present then I add DMG to precipitate the palladium out before cementing out the silver.
The stochiometric ratio is impossible to calculate. It depends on temperature, acid concentration and how much reflux you have. Nurdrage made a good video on making silver nitrate. ruclips.net/video/U8v2zbUYBgw/видео.html There is even a third reaction that happens at high pressure that doesn't release any NOx.
How do you prevent copper from accumulating in the electrolyte? Wouldn't you have to periodically precipitate out the silver with salt and discard the still soluble copper?
Copper builds up in the electrolyte. After use, I cement the silver out on copper. Copper won't cement copper so the dissolved copper in the electrolyte stays in solution.
@@sreetips That gets the silver out, but not the copper! Do you use the silver to start over and make new electrolyte, requiring more nitric acid, etc., and making more waste, discarding the "stripped" electrolyte? That seems an inefficient way to run this process! There is a lot of copper in sterling silver!
Sterling silver is about 10% copper, 90% silver, based on my experience. After I get the silver cemented out of the used electrolyte, I add the copper nitrate solution to my waste treatment bucket. It's full of angle iron. In there the copper "cements" out on the iron as harmless metallic copper that is collected and thrown away.
I melt the cement silver and run it back through the silver cell. I don't use cement silver to make electrolyte. Instead I use pure silver crystal from a previous batch of refined metal.
My question is how much pure silver do you actually get out of a run before you have to replace all the electrolyte? And I would like to say thank you for the time you’ve spent in these videos! I’ve watch all and can’t wait for the new ones.
Hello fellow shipmate, I see you were on a tin can, Ive been watching you for about 8 months now, really great stuff man, I was on the Midway home-ported out of japan
Wish I was set up to do big stone work. Could make you a nice board to set those silver chess pieces on. Looks like I won't get an opportunity to add some of those fancy silver crystals to my collection. Going to take a bit of silver to cast all those pieces. I see someone snatched up that electrode.
Jimmy Diresta has a video of a beautiful wooden chess board with a storage drawer for the pieces. I emailed him to see if he could make one for me but he never got back to me. When I get going making my pieces I'll shoot him another request. Plan to make the pieces encrusted with jewels, if I have enough time and I can swing it.
Palladium is soluble in nitric acid. The only one of six sister metals in the platinum group that is. For this reason the palladium tends to follow the silver. If palladium concentrations get high in the cement silver then it could start to dissolve in the anode along with the silver, if the pH is too low from excess nitric in the electrolyte. A little Pd in the electrolyte won’t be a problem. But higher concentrations could start to plate out and contaminate the pure silver crystal. Silver contamination problem is secondary because palladium is about 90 times more valuable than silver.
@@sreetips thanks for so long reply. I have silver with lead, platinum, palladium and gold. Silver is at least 10 more in this bar then platinum and what I heard is that platinum could also dissolve and that’s the problem for me to recover it later.
Platinum will dissolve in nitric if it’s alloyed with silver. To recover the Pt I just cement everything on copper. Melt into shot, run it through my silver cell. The platinum will accumulate in the anode filter as slimes that can then be processed and the platinum recovered from those slimes.
There is a reason for that. Rhodium is a tricky nut to crack! Unless Sreetips has a significant amount of it to work with it is fruitless, even educationally.
I opened up the outlet to vent more air. As soon as the weather heats up I'll be out of business again. But I'm going to a bigger motor before that, and take the restriction off the outlet. Restricting the pipe to make the underpowered motor work was a bad idea.
@@sreetips Would allowing more air into your shop help? By the way if you need metal price quotes , BNN Bloomberg has metal quotes at the top of their web page. Just click on markets then click on metals. Palladium is quoted at $2730.25 as I type. www.bnnbloomberg.ca/
The garage door is not sealed at all. I can see light from both sides. there is plenty of replacement air coming in. The old motor ran fine in the same conditions.
And possibly some of the nitrogen dioxide reacting with water making more nitric acid, I don’t know if this is an easy question to do the stoichiometry and get a direct answer, but I am having fun thinking about it!
There are two different reactions that takes place, the ratio is depending on temperature and acid concentration. Adding the factor of reflux and that some of the acid evaporates it's an impossible problem to calculate a stochiometric ratio for dissolving silver in an open beaker. 3Ag+4HNO3 -> 3AgNO3 + 2H2O + NO Ag + 2HNO3 -> AgNO3 + H2O + NO2
Göran Axelsson thanks Goran, yes I was thinking about this quite a bit yesterday. It brings me back to my chemistry days of working in the lab as a university student
Thank you so thats what 95- 97 percent i have a few ozs of cemented silver ill have to melt it to pour some shot and give this a try thoes are very nice looking crystals
Sterling silver can be run through the cell. But the electrolyte will quickly become saturated with copper. It's best to use high purity silver, such as 99% cement silver for the electrolytic cell. Sterling is not recommended.
@@sreetips thank you. Also have you considered regenerating your nitrogen dioxide back into nitric acid? Nitric is hard to come by for me and I'm pay a dollar per mL. (when I can find it). My attempts to capture NO2 aren't working. There always seems to be some escaping out of the bubblers even with an ice bath.
128.1ml of 70% nitric and 128.1ml of distilled water for 105gr of 99.999 silver
Fun stuff. Thanks for teaching us the techniques in processing precious metals.
Something fundamentally beautiful about pure silver crystals.
The only true way to describe the color with words is a "silvery sheen" because nothing else really has the color of silver. So, you just say "silver." Even in poured and polished bars. People who have seen pure silver understand what I mean.
I can't find enough scrap silver to run my cell as much as Sreetips does and only do it as a hobby. He is going for speed, if you have more time and patience than money you can get good results using a lot less chemicals that can get expensive. He is absolutely right, the fumes are dangerous and destructive of any metal in the area even when they aren't strong enough to notice. Ask me how I know.
I'll bite, how do you know? (lol I feel like there's a story here)
How do you know?
@@TheMontyYoakum Not much of a story just a fine coating of rust on my welding table, vise, hammers, pliers... This was under an open lean to roof on the side of my shed. If you don't have fume extraction work outdoors when you have a steady breeze or at least a large fan.
It takes 128.1 ML of 70% nitric acid plus 128.1 ML of distilled water to dissolve 105 grams of pure silver. I hope I’m right what a challenge.
Sounds right i got 122g pure nitric acid, just gotta look up the density of azeotropic nitric acid.
I like this site. I use ot all the time when doing reactions, so I don't have to do all the math myself.
www.webqc.org/balance.php?reaction=Ag%2BHNO3%3DAgNO3%2BNO2%2BH2O
But there are two different reactions of silver dissolving in nitric acid and the ratio between them is almost impossible to calculate. It depends on temperature and acid concentration.
3Ag+4HNO3 -> 3AgNO3 + 2H2O + NO
Ag + 2HNO3 -> AgNO3 + H2O + NO2
@@goranaxelsson1409 he is doing it using hot concentrated acid, so the 2nd reaction will be dominant. You're not gonna get it perfect, but you'll be close.
Hey there, did you get it right? I like watching Sreetips, it has me wanting to refine!
And we highly appreciate you brother. Oh wow You and Poppa Dean doing a Collab. Sweeeeeeet. Poppa Dean is an awesome guy this is gonna be good. Can’t wait 😎👍🏻💪
You rock bud. Great to see an old friend.
Good to see you too brother. Been missing you for sure. Have been hoping to do a hangout with you Mike and the whole crew soon. It’s been too long. We will have to make that happen soon. I sure miss Monday Mayham as well
@@SilverMac47 Hey, , , Grab Skully, Bear and AG Ender and of course the Vulcans. Amongst so many others. Like you I soooo miss the old crew that were soooo much fun. Not that I have anything against any of the new and up and coming folks I just plain miss all our old friends soooo very much.Name a day and time and I will be there with bells on for sure bud.Talk about old Sophie and I are watching "Dr Strangelove" on Turner. Wow that brings back a memory or 8 eh. Take care old friend !
For 105g of pure silver you'd need 57.91ml of 70% nitric acid. Also, do you have an idea of when you'll refine your waste anode baskets? I'd love to see that video. Thanks!
It's coming. I have so many irons in the fire that I can't crank them out fast enough. I'm going to have to start writing them down.
@@sreetips Sounds great! I'm a chemistry undergrad and love watching your videos, mostly because I hope to replicate them as a hobby once I'm out of school. Keep them coming!
There are two different reactions that takes place, the ratio is depending on temperature and acid concentration. Adding the factor of reflux and that some of the acid evaporates it's an impossible problem to calculate a stochiometric ratio for dissolving silver in an open beaker.
3Ag+4HNO3 -> 3AgNO3 + 2H2O + NO
Ag + 2HNO3 -> AgNO3 + H2O + NO2
Hello Sreetips. I just want to thank you for all of the wonderful scientific knowledge you’ve provided. You’ve inspired me to follow your lead and take up this hobby. Minus a few pieces of lab equipment I’ve collected enough to refine gold and silver “safely”. Gratefully, with your guidance, I have just succeeded in creating my first batch of silver nitrate! I took my time and slowly added small amounts of concentrated nitric acid to my distilled water over a low/medium heat and made sure not to have any free nitric acid left by checking to make sure the reaction had finished with a small amount of undissolved sterling silver remaining. I still have many questions for you but for now, thank you!
Silver nitrate will stain your skin black for days if it gets on you. Make sure and wear gloves. I like my left over silver BOILING with no fumes in the beaker. With that much heat and no fumes it's safe to conclude that all the nitric has been consumed.
82g of HNO3 (100%) is the stoichiometry for 105g of pure Ag dissolved in hot dilute nitric acid. If % other than 100 refer to the nitric acid table of density, % conc. and mass % to find out what volume of HNO3 u have in hands u shold use.
Fascinating ! Thanks soooo much for the shout my friend. I go to town tomorrow and as far as I know your package is here. A nice clean chip in the camera and away we shall go for ya ! Like yourself I love the comments that come my way.
I'll get everybody that I can directed to your videos. Thanks for helping!
Poppa Dean this is gonna be an epic Collab my friend. Can’t wait fir this video. I’m excited Gonna be sweet brother. Hows Sophie doin? Hope you and her are well! Love ya brother
@@sreetips I just got 3 new subs that mentioned you good sir. Many thanks my friend
Yahoooo!
Dean is an amazing. Pourer you'll learn loads about sand casting from him . Just as I have and many others will continue to do so
Need 43.5mL of 68% Nitric Acid (minimum) to dissolve 105g of pure Silver metal. Will need an excess because the heat and catalytic silver will cause decomposition of some nitric acid into water and nitrogen oxides.
If the level falls from evaporation of water vapour why not top up with distilled water as a first approximation?
Removing some 'dirty' electrolyte and replacing with 'pure' electrolyte on some schedule might be more correct in maintaining the electrolyte properties.
Using mole ratios: there is around 0.98 moles of silver. We therefore need 0.98 moles of nitric acid. Provided that the acid is 70% (15.8M) then you only need 61.6 mL to dissolve the silver. You also have to provide enough distilled water for the silver nitrate that forms to be able to dissolve into.
Maybe worthy to mention, even tho it's somewhat pedantic...
The silver is being displaced in solution by the other metals... When an atom of say, copper gets eaten off the anode, this corresponds with a silver atom being deposited at the cathode; the goal of course being to replace each atom of silver deposited, with a new one from the anode.
So the more impure your silver to start with, the faster the depletion because the impurities make up a higher percentage of the electrolysis activity at the anode, and because the solution is still mostly silver, silver dominates at the cathode.
The result, a slow overall loss of silver concentration.
You said the same thing in the video, this is just the "under the hood".
I only mention this because some are under the impression that metal ions get instantaneously "beamed over" to the cathode or something, that's not how it works. The electrolyte is essentially a buffer for the silver as well as impurities, and has resistance to contamination (at the cathode) due to the reactivity series, which is why it is able to purify. The "wrong" atom (eg copper) gets substituted with a silver atom at the cathode, because it is most willing of the participants to plate out, thereby refining the silver.
Good explanation. Thank you
.973mol Ag + 1.024mol HNO3 = 0.973mol AgNO3 + 0.051mol NO3H20
Or it can just simply be
Ag + HNO3 = AgNO3 + NO3H20
Or am I getting to detailed?
There are many variables such as the nitric acid being dilute nitric acid it's not a consistent variable. The ratio of your dilute nitric calculated can be different from any other person's ratio.
That's why I think it's just a simple answer.
This is a hard one because we dont know exactly what you want for an answer in terms of the stoichiometry. The ratio? The amount of dilute nitric needed for 105 g of Ag? Or the molar masses.
Basically can fill a page or two just trying to give an answer of this simply put question.
But I do want to say these are so fun since you started incorporating this kinda thing in your clips on the channel.
Regards,
It should take about 128.1 ml of distilled water and about 78.75 ml of 70% nitric acid to dissolve 105 grams of pure silver, Ive had many times where i followed the 1.2 to 1.2 ratio but it still had excess nitric, Ive just used .75 ml of nitric per gram of silver and it works every time
That's good to know. So you used 0.75ml times weight of pure silver crystal equals amount, in milliliters, of 70% nitric to completely dissolve the silver? But I need just a little silver left over after the reaction is complete to ensure that all the free nitric has been consumed.
sreetips I put in just a little more silver then I want so there for if there ever is somehow excess nitric it will get used up
128.25ml nitric 128.09ml h2o for 105g ag
3 Ag(s) + 4 HNO3(aq) --> 3 AgNO3(aq) + NO(g) + 2 H2O
(for hot diluted acid)
Atomic mass of silver = 107.868 g/mol
105 g Ag = 0.973 moles
Ratio 3:4 ->
1.298 moles of HNO3.
Or 81.78 g
Volume would of course depend on the molarity
Assuming usual conc. Nitric acid (not fuming) is used. ~68%
Density of HNO3 is 1.51 g/mL
The volume of conc. (68%) HNO3 required would be 79.65 mL. But ~80 should be fine. Very nice videos btw, really like your channel.
Martin, I'm no chemist so I'll have to get it checked. But if it's correct then you will get the 5 ozt bar of silver. Thank you!
@@sreetips Thanks! It was quite a fun activity. Also I'd like to change slightly my answer to 82.15 mL. I was assuming the density was 1.51 (which is correct for 100% nitric). However this is not the case for 68% which is ~15.8 Molar, and so to get 1.298 moles out of this you'll need 82.15 mL. Hopefully that's correct.
I'm going to make a command decision here and declare you right. Please contact me via email with your shipping info. My email is included at the top of my channel description page. Click on "about" to get it. Thank you. Now I'll have to look into going back to school to learn how to do this myself.
The silver cell I am running has run into this issue. I am running shavings from a dore bar which is from a silver inquart smelt. Getting a lot of grey crystal in my cell along with the white silver, assuming it is Pd. I have seen significant Pd and other PGM's with XRF scans of the smelt bars.
Joshua, the impure silver shot should be about 99%, 98% at the least, for electrolytic refining. Lower levels will tend to foul the cell very quickly and start to contaminate the pure silver crystal. You should separate the silver from those bars before trying to run it through your cell. But the silver crystal can be run back through as anode silver through the cell as well.
@@sreetips That's what I am finding. SEM analysis showed it was around 91% silver. I think I'll pour the dore bars into shot and chemically separate it, then run it through the cell to get the silver. Thanks!
Taking the big leap upon getting a smart phone..... I have a few people pushing me to do the same... But, I sure do not mind paying my $8 a month cell phone bill, as compared to what i have looked into on smart phones costs of the units, and the monthly data packages and fees... scares the heck out of me... the cheapest I found in my area, was approx $98 a month, and is equal to what my old school non smart phone has now, for $8 bucks a month... and to make that big stretch to get a smart phone with all the good stuff, its like $300 to $600 a month,,,,, I don't know how people do it. or maybe I am just not very smart on the stuff... either way... A live show with chat, I would really enjoy that and will arrange my money to make a donation during those events.. As always, Thank you and to your lady, for always putting great effort into your teaching content upon this hobby...Dru
Good question!! I have no clue of the answer!! Love that you're starting to put regular videos out again!
I've watched all you're videos!! Most of them 2 or more times.
You could remake alot of the earlier vids, I'd be willing to bet that there's only a few of us who's seen every video! I think some of your new viewers and die hard fans like me would love to see some remakes of the silent "movie" era!! 😄
Maybe even show a brief comparison of the two styles and how you've grown in this hobby and RUclips channel of yours!!
What do you think Sreetips??
Have a GREAT Day My Friend!!!
These vids are very relaxing to watch, keep em coming 🤘
2Ag + 3H2NO4 = 2Ag(NO4) + NO + 3H2O
Moles. Grams
Ag. 0.9734 moles 105 grams
H2NO4. 1.4601 moles 116.8452 g
Ag(NO4) 0.9734 moles 180.9345 g
NO.(g) 0.4867 moles. 14.6058 gram
H2O. 1.4601 moles. 26.305 grams
Looks great., thats some high grade silver and gold from all that,, will do my best to finally get a nice piece this time,, Glad to see the fume hood is back in operation too,,!
Boats! Glad to hear from you.
Please tell me that is not a stainless steel bowl your using in an electrolysis system.
Stainless steel is super dangerous in electrolysis, The chromium in the stainless steel comes out of the metal and becomes hexavalent chromium (Cr6+) which is a strong cancer causing agent even in very small amounts. hexavalent chromium is also a mess to reduce to safe waste and should not be dumped on the ground or down drains. Stay safe and keep up the fun metal work.
Chromium will form hydroxide and come out of solution, but it will go back into solution above pH9, as will other metals.
@@sreetips Chrome can have 4 different oxidation states 0,+2,+3 and +6 so it will have that also in solution. I'm very short on this subject about Chromate and Cr+6 But I do know it's in some paint, in certain wood to make it durable and the Silver test solution is Chromate. The Chromate Ion contains the Cr6+ ion. I also know from literature it's a strong carcinogenic (mutagenic). I cannot confirm StoneWorlds Leaching of Cr6+ from Stainless steel.
hey just wondering do you know how to make gold electroplating solution to plate gold pieces
ive never done it. That would make a cool video.
thank you mr sreetips , all the best .
hey sand casting sounds like a great way to make your silver cell electrode... might be a good item to practice on
i'm talking about casting the electrode itself in one piece using a sand mold. instead of forging the 'stem' and then casting the 'foot' around it he could do a two part sand mold.
@TMoD7007 his current method for fabricating these electrodes is inefficient. casting it in sand in one piece would be so much easier than the janky 3 torch setup he's suing plus having to forge the stem and then cast the foot around it. could even do a batch of them to save time.
@TMoD7007 you're entirely missing my point. watch this and then read my comments again ruclips.net/video/aIw0XozxH9I/видео.html
I watched a lot of your stuff, so much I don't remember if you've ever worked with silver plated electrician related scrap. To me that's not just contacts, buss bars and other service panel copper and brass was often plated with silver. Brass prices are paid for such scrap, in my experience.
I did one video on a silver plated bowl. It had a very thick coating of silver over brass. I've never done any electrical contacts.
@@sreetips I'd send you mine for free if I had more. As a hobby I hoard such things. I'd get more enjoyment watching you do your thing than taking it in for brass or copper scrap value.
Stoichiometry
Description
Stoichiometry is the calculation of reactants and products in chemical reactions. Stoichiometry is founded on the law of conservation of mass where the total mass of the reactants equals the total mass
I should have put that in there. Only chemists would know what it was. Sorry.
thanks sreetips
Question:
Let's say you're starting from scratch and have ZERO pure silver.
Would you then instead BUY some Silver Nitrate? or what do you recommend?
I’d buy some nitric acid, buy some pure silver coins. Dissolve coins in nitric to make the electrolyte.
Great explanations, per usual. Would love to see you cook up a 20oz+ silver bar one of these days!
I've got a mold big enough. That would be a simple, easy-to-do video. Might see it sooner than you think.
@@sreetips I have never made a 20 oz pour. I will love to see that my friend. Most definitely a 2 torch pour.
I'm totally green to all of this but it is very fascinating and I wish I was young agan I would love to have teamed up with you and took over the world.
What is the shelf life of the electro light? Wouldn’t it make more sense to make up 1/2 gallon or more at one time!
Probably
love watching this stuff cant wait to do this
wow the video quality is super! Thanx for the video!
New video cam is stellar!
boiling point of nitric acid is 83°c
3Ag + 4HNO3 → 3AgNO3 + NO + 2H2O
m(silver)=105g is exactly n(Silver)=0.9733 mol
So 1.2977 mol HNO3 are needed, considering concentrated nitric acid as a 15.8 M, 82.1 ml are needed, producing 165.33g of AgNO3.
Now, Silver Nitrate solubility is 2570 g per liter of water @ 25ºC, so a total of only 64.3 ml of distilled water are needed to produce a saturated solution. Also, 24.6 ml of that water will come from the concentrated HNO3, plus 11.7 produced by the reaction itself (only 28 ml of distilled water needed to produced a saturated solution @ 25ºC).
The final concentration of the cell is up to you, so dilute at will. Cheers!
Mariel, looks right, I'm not a chemist. But a previous viewer has already given the same answer earlier.
@@sreetips I am a chemist, and nobody gave you the right answer before, but that's fine. My pleasure.
They gave the same answer. Check his work, Martin Fernandes. I wouldn't know an ionic bond from a covalent. But if you'd like, please contact my via email and we'll see if we can settle this. The last thing I want is hard feelings from anyone.
@@sreetips I can't find his comment. Also, I gave you the entire stoichiometry, even included solubility so you know how much water you need to add, but no worries. As i said: my pleasure. I really enjoy your videos. I have to say, for not being a chemist your manipulation is very good. Stoichiometry is not that complicated, if you use it a bit more, specially for procedures starting from a know, pure substance, it will save you a lot of time and reagents. Have a great day.
@@sreetips you are right! I just saw Martin's comment, for some reason I didn't had the comments organized by date, but by relevance. Again, I really enjoy your videos. Keep posting!
How did you determine the size of your silver anode bar?
I used the biggest cavity in the graphite mold that would fit down in the anode basket. The first bar I made was only 1 ozt, plus the stem. But it wasn't heavy enough to cause the shot to compress in the basket as it dissolved. So then I made a two troy ounce bar and that worked great.
not a constructive comment at all.. but I am only allowed to watch your videos with headphones on because my wife cant handle the way/number of times (her perception not mine...) you say "caaaper" lololol :) keep up the great work sreetips! btw stoichiometry of nitric and silver.. good one... if i had to take a guess (not going to balance equations here...) i'd say you could probably get away with ~128ml of 70% nitric acid for 105 grams of silver. given enough time one would ponder even a 70/30 split nitric to water of only ~42-43ml of nitric and ~29-30ml distilled water.
Next is to determine the concentration of SilverNitrate you want to calculate the amount of water you need.
If I understood you right you will sand cast silver? I suspect the finish will be very rough and there will be silver wasted during finishing the piece in terms of grinding and polishing.
Lost wax casting may be better option.
I have access to all the tools needed to get the chess pieces cleaned up. I expect waste from flashing and trimmings, no problem. I plan to set gem stones in the pieces. It'll be my legacy set. 999 fine silver on one side, 6k gold on the other. I'll use 75% sterling silver alloyed with 25% pure gold. The king will weigh in at around four or five troy ounces.
sreetips Fair enough. Having to process trimmings is extra work in my eyes but its good that you had it considered.
@@sreetips US law requires that the highest precious metal content be listed first, so stamping the pieces ".750 sterling .250 6K gold alloy" would probably be acceptable. So might using the simple stamp "sterling 6K". Since you are not using white gold, I don't believe the relative proportions of the two metals in the alloy is necessary
.
Is "sreetips" a registered trademark. The law now requires that if you stamp the precious metal content on the piece, you also stamp it with your registered trademark.
Have you verified there is enough difference in color between the alloy and the sterling to easily differentiate the two?
Something you could do the reduce the cost is to make all the bases out of sterling and the tops out of the gold/silver alloy. If desired, you could then treat the bases of the alloy "black" pieces with liver of sulfur to make them gray or "black".
Answer Submission with Proof of work. Here is the answer as I understand it. If this works, I think we just found a very easy way of doing it in the future quickly.
105.00 g of Ag requires 123.95 mL of 70% HNO3. Magic ratio is 1.18.
You have 105.00g of Ag, you need to know how much 70% HNO3 to add in mL to get that completely dissolved.
The formula we are using is Ag + 2 HNO3 = AgNO3 + NO2 + H20
Take the amount of Silver (Ag) you want to dissolve (105.00g Ag) and convert it to moles. The formula requires molar equivalents.
Molecular weight of Ag is 107.87 g/mol. So, take your 105.00 g divide by 107.87 g/mol = 0.973 mol Ag
You need two moles of HNO3 for every one mole of Ag so 0.973 * 2 = 1.946 moles of HNO3 needed.
You use 70% HNO3 solution (That's what I've seen you use, I'm a fan of your channel)
So we need to know how many HNO3 moles are in 1 ml of 70% HNO3 by mass. Density of 70% HNO3 is 1.41 g/mL. 70% of that mass is 1.41*0.70=0.987 g/mL
Convert that to mol/mL. 0.987 g/mL divided by molecular weight of HNO3 (63.01 g/mol) = 0.0157 HNO3 mol/mL. You need 1.946 moles. So divide again, 1.946/0.0157 = 123.95 mL of HNO3.
Now that we know that, we can just create a shortcut ratio for future use (So that we never have to do this again)
123.95 mL of HNO3 / 105 g of Ag = 1.180 mL HNO3 per gram of Ag. We now have a magic ratio.
Minimum mL to dissolve _______ grams of Silver? Multiply it by 1.18 and throw in some DI water to give the reaction some space to work in.
Note: I tried to be responsible with these calculations (SigFigs I know, I know) because I hope we can all use this Ratio in the future. I did double check my work because this is going public on the internet and that sreetips silver bar would be sweet. But don't just take my word for it, do the math and see what you come up with.
E L, this is very good to know. 1.18 times number of grams of silver to dissolve equals the number of milliliters of 70% nitric to dissolve all the silver. But I do want some undissolved silver, just a little, left in the beaker after all the nitric has been consumed. So maybe 1.10 instead of 1.18 - I may have to do a video on this. Could be very useful. I'll make sure and write this in my notebook. Bravo-Zulu my friend! (Edited once to correct a word)
How many grams of silver did you have to dissolve into silver nitrate in order to fill that silver cell? Looks like about a gallon of liquid, I imagine it was quite a few ounces of silver. Can you dilute it with distilled water, or does it have to be mostly silver nitrate? Thanks
Phil, I use about 600 grams of pure silver crystal dissolved in 3.5 liters of liquid for the electrolyte. The yield averages 1.5 to 1.7 kilos of pure silver crystal. It can be used a second time. But I usually add some more silver nitrate to augment the concentration of silver in the electrolyte for the second run.
Thanks for the quick reply, I sent $20 to your account. My ebay name is 1960katana, I'm not sure if it's the same for my Paypal account, it's been a long time since I set it up. After I process this 15 pounds of silver electrical contacts, I hope to have a couple of ounces of palladium left. I hope to pick you brain some more after I'm done with the silver. I've never processed palladium before, but at $2600 an ounce, I hope to start. Thanks again.
Thank you! They go a long way toward helping me make these videos. I'll try to answer any questions that you have. You can email me. It's under "about" in my channel description.
When you say dilute... what % are you refering to? Im assuming youre starting with 70% nitric and not fuming. If thats the case, ~1.22ml per 1g of Ag is the proportion measure you'd need for a stoichiometric dissolution... (plus at least the same measure of DI/DW as HNO3 to ensure that the AgNO3 says in solution. Looks like J Marie beat me to it though becuase i'm too lazy to multiply 1.22 by 105 :-P
I do have a question for you... do you have an LLC that you order through for nitric and your other chemicals? I dont want DEA/ATF/DHS/FBI kicking down my door since a civilian ordered it...
1.22 would be too much. I need a little silver left over. Maybe 1.1
You can buy nitric on eBay. They won't kick your door down. The misdeeds of a few ruin it for the many.
Thanks
Collab with. The amazing papa dean 😍
Hi Sreetips do you need to run you silver cell under a fume hood or the process make it save to run it in a normal environment ?
As long as there's not a whole bunch of free nitric then I can't detect any odor. But I run my fume hood 24/7 to remove any accumulation. I wouldn't run it inside my house or living area.
@@sreetips Thank you !
Ultimately you will need to remove the impurities from the silver cell electrolyte, have you a good method?
Yes, the used electrolyte is placed in a beaker and copper is added. All the silver and other precious metals "cement" out on the copper. The cement silver is collected, melted into shot,band run throw the cell to make fine silver crystal. If much Pd is present then I add DMG to precipitate the palladium out before cementing out the silver.
the Palladium is where the value lies :)
The stochiometric ratio is impossible to calculate. It depends on temperature, acid concentration and how much reflux you have.
Nurdrage made a good video on making silver nitrate.
ruclips.net/video/U8v2zbUYBgw/видео.html
There is even a third reaction that happens at high pressure that doesn't release any NOx.
Ag + HNO3 = NO + AgNO3+ H2O
105g + 81.78 = 9.73 + 165.35 + 11.69
Did not understand the question but 100 ml destilled water to 20 ml of nitrate
Chemical equation to determine the amount of nitric needed to dissolve 105g of pure silver.
New camera gives fine results.
Hey mine only growing two crystal but I only had 3 oz an but first time I tryed it had hole bowl cover what could be causing that
i know yve probably already said it but what did you use for electrolite
Silver nitrate
AgNO3 with Molar Mass of 169.8731g/mol
The stoichiometry is 1to1 .196moles
Can't wait.
How do you prevent copper from accumulating in the electrolyte? Wouldn't you have to periodically precipitate out the silver with salt and discard the still soluble copper?
Copper builds up in the electrolyte. After use, I cement the silver out on copper. Copper won't cement copper so the dissolved copper in the electrolyte stays in solution.
@@sreetips That gets the silver out, but not the copper! Do you use the silver to start over and make new electrolyte, requiring more nitric acid, etc., and making more waste, discarding the "stripped" electrolyte? That seems an inefficient way to run this process! There is a lot of copper in sterling silver!
Sterling silver is about 10% copper, 90% silver, based on my experience. After I get the silver cemented out of the used electrolyte, I add the copper nitrate solution to my waste treatment bucket. It's full of angle iron. In there the copper "cements" out on the iron as harmless metallic copper that is collected and thrown away.
I melt the cement silver and run it back through the silver cell. I don't use cement silver to make electrolyte. Instead I use pure silver crystal from a previous batch of refined metal.
My question is how much pure silver do you actually get out of a run before you have to replace all the electrolyte? And I would like to say thank you for the time you’ve spent in these videos! I’ve watch all and can’t wait for the new ones.
ooh something i've been waiting for
Don't get it. only 82 ml of NItric 70% ?
~122.67g HNO3
can u make a video showing the use of oxcalic acid
Coming up, thank you.
@@sreetips awesome thanks buddy
61.6ml concentrated nitric I think at 70%. Or 63.2ml at 68% nitric
That’s if you nitric is 70% or 15.8 molar
125 ml 70% conc nitric 125 ml dist water for 100g of 99.99% pure silver.
Did you do the live video Sreetips
I haven’t done a live video yet
@@sreetips i will tune in you can believe that sir.
Always love your video and it is late good night
61.8g
When will you be selling the silver crystals? And what premium over spot will the 5g gold bars go for?
I don't like selling the silver. The price is too low. But it is going to take off like a rocket ship and then I may sell some.
sreetips lol I got it. I would like one of the 5 gram gold bars. Do you take a deposit or will it go straight to eBay?
I think I'll keep it on my eBay store.
Man that new camera is as sharp as can be ...
82 ml of Nitric 70%... we have a winner here!
Hello fellow shipmate, I see you were on a tin can, Ive been watching you for about 8 months now, really great stuff man, I was on the Midway home-ported out of japan
What rate? I was MMCS (SW)
Wish I was set up to do big stone work. Could make you a nice board to set those silver chess pieces on. Looks like I won't get an opportunity to add some of those fancy silver crystals to my collection. Going to take a bit of silver to cast all those pieces. I see someone snatched up that electrode.
Jimmy Diresta has a video of a beautiful wooden chess board with a storage drawer for the pieces. I emailed him to see if he could make one for me but he never got back to me. When I get going making my pieces I'll shoot him another request. Plan to make the pieces encrusted with jewels, if I have enough time and I can swing it.
Hi
How is that possible that palladium would go into solution doing electrolysis of silver? Would it no stay as anode slime in anode bag?
Palladium is soluble in nitric acid. The only one of six sister metals in the platinum group that is. For this reason the palladium tends to follow the silver. If palladium concentrations get high in the cement silver then it could start to dissolve in the anode along with the silver, if the pH is too low from excess nitric in the electrolyte. A little Pd in the electrolyte won’t be a problem. But higher concentrations could start to plate out and contaminate the pure silver crystal. Silver contamination problem is secondary because palladium is about 90 times more valuable than silver.
@@sreetips thanks for so long reply. I have silver with lead, platinum, palladium and gold. Silver is at least 10 more in this bar then platinum and what I heard is that platinum could also dissolve and that’s the problem for me to recover it later.
Platinum will dissolve in nitric if it’s alloyed with silver. To recover the Pt I just cement everything on copper. Melt into shot, run it through my silver cell. The platinum will accumulate in the anode filter as slimes that can then be processed and the platinum recovered from those slimes.
I'm not a smart man but I know what love is
I cant wait for a live stream!
I had that exact mouse!
120 ml of Nitric
Necklace Gold Plated look for gold on ebay
Do you ever want to attempt to retrieve the Rhodium since it currently over $11,000 and ounce?
Chuck, it's still an enigma for me. I probably have it in my filters. But I don't know a thing about recovering it.
There is a reason for that. Rhodium is a tricky nut to crack! Unless Sreetips has a significant amount of it to work with it is fruitless, even educationally.
Lou at Auris Nobel offered to sell me some rhodium sponge three years ago when it was below $2000. I wish I would have bought an ounce from him.
128.2 ml
147.315? Shot in the dark but worth a try
Necklace Gold Plated
How is the exhaust fan working?
I opened up the outlet to vent more air. As soon as the weather heats up I'll be out of business again. But I'm going to a bigger motor before that, and take the restriction off the outlet. Restricting the pipe to make the underpowered motor work was a bad idea.
@@sreetips Would allowing more air into your shop help? By the way if you need metal price quotes , BNN Bloomberg has metal quotes at the top of their web page. Just click on markets then click on metals. Palladium is quoted at $2730.25 as I type. www.bnnbloomberg.ca/
The garage door is not sealed at all. I can see light from both sides. there is plenty of replacement air coming in. The old motor ran fine in the same conditions.
My dear please I want to buy a kilo of crystal silver How is that through eBay or how?
I don't want to sell the silver right now. I'm holding onto it. But I will list a 5 troy ounce bag from time to time on my eBay store. Thank you.
@@sreetips Thank you, man
I realized a mistake in my chemical equation from last night, I think it takes 123ml of 70% if the reaction is hot and concentrated which it is
And possibly some of the nitrogen dioxide reacting with water making more nitric acid, I don’t know if this is an easy question to do the stoichiometry and get a direct answer, but I am having fun thinking about it!
Pat, thank you. I don't know anything about chemistry. Maybe I should take a class.
There are two different reactions that takes place, the ratio is depending on temperature and acid concentration. Adding the factor of reflux and that some of the acid evaporates it's an impossible problem to calculate a stochiometric ratio for dissolving silver in an open beaker.
3Ag+4HNO3 -> 3AgNO3 + 2H2O + NO
Ag + 2HNO3 -> AgNO3 + H2O + NO2
Göran Axelsson thanks Goran, yes I was thinking about this quite a bit yesterday. It brings me back to my chemistry days of working in the lab as a university student
128.1😁
Just how pure does the silver shot in the filter basket have to be ?
jerry coleman it’s sterling silver
Thank you so thats what 95- 97 percent i have a few ozs of cemented silver ill have to melt it to pour some shot and give this a try thoes are very nice looking crystals
The higher the better. But the shot I put in is about 98% to 99% with copper being the main contaminant.
Thank you definitely got to try this from my cemented silver that nitric isnt cheap
Sterling silver can be run through the cell. But the electrolyte will quickly become saturated with copper. It's best to use high purity silver, such as 99% cement silver for the electrolytic cell. Sterling is not recommended.
43.7ml HNO3 give or take
78.4ml
what Watch is that?
In his video it was Longines. But she has since found me a nice 14k Omega Pie Pan. You can see it in my latest silver refine with no nitric video.
@@sreetips Cool, i'll look out for it!
My power supply is putting off 4.7 v will it work?
Mat Anderson higher voltages will increase the likelihood of other metals plating out with the silver. I keep 3.5v never more than 3.7vdc
@@sreetips thank you. Also have you considered regenerating your nitrogen dioxide back into nitric acid? Nitric is hard to come by for me and I'm pay a dollar per mL. (when I can find it). My attempts to capture NO2 aren't working. There always seems to be some escaping out of the bubblers even with an ice bath.
I have tried it
5.82848 mole
This reminds me of breaking bad lol he is making that blue crystal
made a mistake… 124 ml 50%,
Wow that motor is really loud on the video
About to change
72 g
wow im the firat to like your video and the first to comment on it too. lol
Taking 2nd ..
That was fast!