Great little series man. I know the camera is a pain and you're just plain awesome for letting us come along. The camera angle makes me feel like I'm standing in front of you during the process. Very much first person POV. Can't wait for what you have next!
Mr. Sreetips, don't get into a rush. I'd prefer quality over quantity with your videos. I'd also like for you to enjoy making videos rather than stress about getting out 5 videos a week.
Quite correct. I am sometimes overcome by a sense of thankfulness, that I get to do this. I pray for strength to keep from cursing when something small doesn’t go the way that I wanted. Such is life. I’ve got so much more planned. Thank you for the encouragement.
@@sreetips I totally agree with these above guys, just take your time! Your videos are one of a kind on RUclips here and I for one am always waiting anxiously for your next ones to post. You do a great job and just don't worry about being in a hurry. I've watched the same processes for 100's of times lol; mostly your videos and I always end up learning something new :) GOD BLESS YOU and your family in all things; and a special TY for what you do for us! Totally helps in these troubled times to sit back and watch something that just melts the stress and anxiety right off you :) GOD BLESS again and tyty again :)
Dear Sreetips, I had to message you and tell you how much I enjoy your videos, they have kept me going through this mess we are experiencing at the moment. As a Chemistry graduate I have to say it took me right back and I have to say your fume cupboard technique is brilliant, even though I struggle with some of the Chemistry but that is because my degree is in organic chemistry. As a side note I have gone the opposite way to you, I started as a Chemist and ended up in aviation, currently I am an Air Traffic Controller so I think we have a lot in common. Kind regards, Mike.
Regarding the Lye/ Sugar reaction The lye or sodium hydroxide converts the silver chloride to silver oxide (black colour) To convert the silver oxide to silver powder you need a reducing sugar (reducing means likes to take oxygen away its oposite is oxidising) Sucrose is not a reducing sugar but the excess sodium hydroxide will break it into Fructose and glucose both of whice are reducing sugars. the two reducing sugars will take the oxygen from the silver oxide and leave the silver metal. You can also use corn syrup which is mostly glucose so in that case you would not need excess Lye.(I am not sure if that would reduce the heat produced from the reaction. Hope thats clear. Cheers for the video.
Silver chloride and sodium hydroxide produces silver oxide, Plus Sodium Chloride, Water and O2. The sugar grabs the Oxygen atom off of the Silver oxide to produce D-gluconic Acid, Elemental silver, and heat.
I get it its a hobby but for some reason as you refine the metal I'm able to refine my stress out day and watch you do your work. What ever I think its cool as ever to see. Thanks man.
I always look forward to seeing your work over here in the UK, i to now run a silver cell 24/7 & ime slowly pouring & stocking bars, its a most fun hobby that combines my love of chemistry with precious metals. Keep up the excellent videos Sreetips, you have quite a following here in the UK
Sir you. Critique yourself too harshly . I perceive you to be an honest and fair person you have the courage to let us learn along with you that's why I like your show and I'll look forward to every video you post.
Excellent video! Great to see the alternative to cementing with copper, but I have to agree with you that looked like a lot more work and waste... Very nice silver bar too!
You remind me of a young boy who is just to excited to get to the toy store so you forget to look for traffic and sprint across the street, only to be hit by a car.... LOL You have an incredibly small amount of patience, you not only refuse to simply just dry the metals before trying to melt it, which is pretty damn nuts, but the real crazy thing you do that I can never really understand, is how you always drop the freshly poured molten bar into water, and then as soon as is humanly possible, you reach in and grab the thing?!?!?! I just laugh every time because I know you're getting slightly burnt and are just to excited to hold the new bar you don't even care. LMAO. It's adorable. I just watched you refniete fk0certrt-
I know you don't like that method but it's nice to see you do new ways! Well not new for me, I've seen you do it before. However you have twice as many subs now, so for alot of people it's new to them! Have a GREAT Day My Friend!!!
Sucrose is not itself a reducing sugar, however in basic or acidic solutions the sucrose is broken up into fructose and glucose. In basic or acidic solutions the glucose can have its normal ring structure opened up to form a very reactive straight chain form of the sugar. This molecule reacts with the silver oxide and reduces it to silver metal and is itself oxidized. That’s also why the solution after silver production is a brown caramel color. You’re essentially forming caramelization side products of the sugar as it picks up the oxygen from the silver oxide.
I was beginning to worry when this didn’t follow part 1 in a day so. I was afraid the WuFlu had gotten you. I have given up doing the lye/sugar method. Now I cement on copper, melt and cornflake, then into the silver cell. Thanks for another great video.
Another awesome video as always. I was wondering why you just didn't use the copper coils at first. That is a lot of waste by doing it that way. Learn something new everyday. Thanks for the video.
Hello Sreetips, I feel that you wanted to complete the series in this Part 2 itself so it went on for 1 hour and some process was either speeded up or hasty. Example is your quick washes and pouring in waste buckets which carried away some silver. I know you made this Part 2 with the purpose of finishing off the whole task. However I feel (anyone can after watching, no big deal) that you could have prolonged this series. The first 3 minutes and last 15 minutes is related to gold part. You could have made gold recovery into Part 2. You could have made Part 3 with Silver recovery. And to add more milage you could have made Part 4 using the waste buckets. I suggest this because you have a large quantity of waste solutions i.e. 2 gallons of blue and 3 gallons of red both of which contain residual silver. Anyways, once again a nice video.
Once again old friend, this is sooo interesting. Thanks much fella ! I see you still need to make a small furnace like mine. It really saves time and gas.
Oh? Is there a video on building a small furnace on your channel? If not might i humbly request that you add that to your list of videos to make? I find myself in need of a cost effective furnace as well. It's getting expensive to refine gold lol
@@999fine5 HI, You bet. Come and visit my channel. My furnace/forge costs $25 CDN and costs $6 to rebuild. There is one video showing my setup. You may like the others as well.
I had the same thoughts about this. Probably concerned about the time and trouble involved in leaving a pile of AgCl sitting around outside, and perhaps what will happen with the Cl gas generated from it.
Looks like the size of golf ball. I wonder if they have in Supply a mesh type net to put over your Beaker that way most of the silver or some of the silver doesn't get through and into the waste bucket. I don't understand gold-plated silver bar
Boats, I had a five gallon bucket sitting in the sink once, 1/3 full of silver oxide. I dumped in about 2 cups of sugar all at once and heard the silver oxide make some strange boiling noises after the sugar went in. I picked up a glass rod to stir and the silver began to react violently and erupted like a volcano spewing hot caustic silver over the top of the bucket and into the sink basin. Luckily the bucket was sitting on the drain and prevented the silver from going down the waste pipe.
When you’re ready to pour your silver, try adjusting the flame on your torch. Turn down the oxygen, the torch will then produce a Reducing Flame. The excess acetylene will scavenge ambient oxygen and should help alleviate the absorption and offgassing.
hey street . you helped me a lot in the past and i am rather new but i have found something cool whilst working in my shed . i have a beltsander that has worn down to NO grit , it is just cloth that cycles at high sppeds . i have been using it to mirror my flat gold surfaces with zero loss in weight and no rouge or anything needed so i thought if it may help you or you thought it sounded interesting you might have fun with it . cheers. p.s. i taped the trigger down as no dead man and flipped it upside down making it a stationary work surface .
Sreetips I really admire your knowledge and the generosity you demonstrate day after day teaching us all with such clarity and focus. In short this is to say thank you so much and to let you know your importance in my life and world view. That said, as I have watch you today there has been an unusually heavy consumption of various forms of lye and given that we only see your hands and gloves, I can only hope you are wearing face and eye protection. I have been doing chemistry and extractions since about 1983 with only a couple of minor mishaps until about a year ago when a very tiny partial drop of lye solution splashed out of a beaker and hit my right eye. The affect was instantaneous and a black hole was burned through my field of vision and it remains there today. It is permanently damage. I watch the vigorousglsss rod stirring and kitchen mixer you employ and I want to beg you handle KOH and NaOH more gently and don’t splash it about??!0”Please? I would hate to see you injured and risk loosing you as a mentor. Thank you Douglas
Ugh you make pouring bars look a lot easier than it is Sreetips =) Mine never come out that pretty. I've given some thought to just getting a rolling mill or something to smooth and flatten them out LoL
I would suggest to do some stochiometric calculations on converting AgCl to Ag2O. This would reduce the amount of waste quite much. Use some acid to neutralize the NaOH after reducing the silver oxide with sugar
I Admire your effort. Amazed that you bother to melt a 2 gram button of gold. I appreciate and I know you do it for the video (the money-shot ;)), but I'd be plenty satisfied is you collected the powder in the filter, dried it up and weighed it, then at some later point add it to other powders/smaller amounts to make a larger bar/button. Just think you'd save some money on various gasses. Loved the video.
These something primal about watching metal liquify under a flame, even a small amount like in this video. It’s doubly satisfying when the metal is gold or silver.
I'm wondering if you put that glass beaker in a 2 1/2 gallon or 5 gallon bucket with ice all around it, if when you add the sugar that might take a lot of the ferociousness out of the reaction. :) Just a thought :) 17:28 in the video :)
@Sreetips this video series sparked an idea in my mind. Could you inquard Karad Scrap with Gold-Filled/-Plated material, instead of pure Silver/Copper? Like a metal hodge podge where you melt down wildly different jewelry into an alloy with ~25% Gold. With the goal that if u need to use up that nitric anyway to dissolve the base metals in the Gold-Filled material u could include the refining of Karad Scrap or reinquard Goldshot with just one additional melting. I think I could write you a calculator for that, that balances multiple alloys with different percentages of metals to get a 25% Gold Alloy in the end. I anticipate your answer
I refine silver, so silver - yes. Copper, yes. Gold filled - maybe but be prepared for some junk that could make refining difficult. Gold plated hodgepodge - no. This would guarantee some junk getting into the process and gum it up. Using clean sterling silver or copper excludes junk metals and greatly increases our chances of a successful refining.
Thank you for your great response ! Ok I see, my thought may had yielded success in exactly this case with a pure base metal. I saw your video about “can you directly put karat scrap into AR” and how the 1st attempt “failed”, I thought the main reason was that the gold concentration was to high and that was the cause of the dirty solution and the solids that gunk up the solution. Maybe I noticed that incorrectly but can you point out which metals tend to form solids if dissolved in Nitric or AR, in on of your coming episodes? Your videos are ones of my favorites for years, especially that ones where you traverse unknown grounds ; ) PS: I have build a calculator for inquarting to visualize it for me and i try to make it online accessible
my first Build of an Inquartation Calculator, should work hope it is helpfull to somebody ! docs.google.com/spreadsheets/d/1RO_7mjfS-rbtqcpT1aaCNSagJ-gffTKZhtZSIGJ8lhE/edit?usp=sharing
Hi Sreetips - love your videos. Learning so much. Does the fume hood keep the fumes self contained within the unit or do we need a hose venting the fumes from the fume hood to the outside of the shop? I hope that makes sense.
There are ductless fume hoods that recycle the air back into the work space. Mine is a ducted hood that exhausts to the outside away from the work area. There’s a constant draft of air pulling the dangerous fumes away from me. This enables me to work with no mask or respirator.
did you go with silver chloride because you refined gold plated silver or was there another reason you didn't use copper to cement the silver in this vid.? or maybe it was because there was all ready copper in it.
I was waiting for that melt dish to explode from the cold silver & water you put into it after your first melt. It would make a complete mess if it had exploded. You're extremely lucky it held together..
A couple questions , to reduce the amount of waste - couldn't you just evaporate off most of the water ? Next is making stannous chloride , I've only made one batch in a dropper bottle and the tin does not dissolve and stays clear , your's seems to be cloudy ? Thanks again
Evaporation May work but I’ve never tried it. My stannous is one gram pure tin shot, one gram stannous chloride crystals, 25ml distilled water, 30 drops hcl. Last for 3 months. It turns milky
So what do you have to do to remediate the wastes? Also, what other metals can you get from the wastes? Copper isn't worth a ton but it has value and what about any other silver group metals? This is also a time when a small 3kg electric smelter would be nice
Hi Sreetips. I have a question about your waste production. The majority of that liquid is water right? So couldn't you boil the water off outside or just set it out in the heat to evap off most of the water? That way you reduce your need for waste storage space. Is that possible or does it pose problems to concentrate down the waste water? Thanks Sreetips.
I used evaporation in the past. It will reduce volume but it’s slow and cumbersome. The lye and sugar is not that big of a deal. But the blue liquid could contain PGMs. Plus there’s still acid in the blue liquid that can still dissolve metal. For me, cementing everything on copper works the best. Less waste solutions, gets all the metals brought down with cement action and easy to treat the waste.
This might be a dumb thought but i was curious. I know that often times you don't refine gold plated material because of cost vs yield being bad and you end up selling batches of hold plated jewelry. But i was thinking, in the case of gold plated siver, could it be used rather than stirling to inquart your karat gold? I imagine it would all a tiny amount of gold to the yield and other wise be mostly the same as using Stirling. I imagine it would have more copper in it than Stirling but would it be enough to make that not worthwhile?
Is it me, or does the gold-plated sterling jewelry have a thicker layer of gold than the gold-plated base metal jewelry? The gold yield was higher than I was expecting.
They did partly dissolve. They would have completely dissolved if I kept on heat and added more acids. The foils are very thin and dissolve even with no heat. But the karat gold reacts much slower because it is much thicker and more dense than the thin gold foils.
I’ve never tried that. But there’s still a ton of waste even with vacuum. I can, and have, done very thorough rinsing and testing until everything is pristine to get high purity silver. But it took days of rinsing and settling and it produced twice the amount of waste that is shown here.
@@sreetips Watching that entire Video (1&2) Gave me a real insight into why refiners pay below Spot for bullion and things like 14k-18k Jewelry and things like that. That is a LOT of work, with low yield vs. Hours, materials & Waste disposal. I had no idea it was so Work intensive. I always thought it was just: Throw it in a Crucible and pour on the Heat! Boy, was I wrong! So, thank you for putting in the time to do these and responding to questions! That is not something I see on a LOT of Channels.
21:21 - "we've got this this red material forming on top of it - red is probably copper hydroxide" - I guess you've meant "cuprous oxide", Cu2O (nowadays properly referred to as "Copper (I) Oxide"). Cu(OH)2 is distinctively blue, pretty much like all Cu++ salts, jelly like substance, and it usually quickly turns dark, as it easily decomposes to CuO (which is black) and H2O. Cu2O is, rather reddish, dark brick-red sorta (see en.wikipedia.org/wiki/Copper(I)_oxide). BTW, a fine Cu powder is also of similar colour, but I'm not sure whether one can actually reduce Cu++ ions to metallic Cu in this reaction (I think it can't be done, but I'm not sure and don't feel like searching for the answer now). 23:06 - "and this is the reason I really don''t like to use lye and sugar method because it produces so much waste" - wouldn't neutralising most of the lye (NaOH) first, using HCl, help that issue a bit? Or would it create some problems latter on?
Hello Sreetips, I made this suggestion in previous videos a long time back and I am once again making. You get yourself an Induction melting arrangement. Benifits ?? 1. Saving on losses from blown away gold / silver specially when they are in powder form. 2. With torch, the temperature is not uniform in your crucible. At the point of focus some gold / silver may vaporise. 3. Your video will be attractive as you can show in real time the charge in crucible go from solid to liquid in seconds. 4. The cost of new set up can be recovered with the losses (blown away and vaporized) eliminated. In fact you can make a video by sweeping your floor under teh melting area, collect all dust and process to recover value.
Is there any other way to effectively recover silver from gold plated 925 silver jewelleries without a lot of wastage? Can i somehow remove tarnished gold plating from my silver jewelry ?
I’ll be making a video about this soon. But to answer your question: there will be waste. The amount of losses from the waste will depend on the skill and technique used by the refiner. Getting high purity gold and silver is never quick and easy. Watch for the video.
@sreetips sir i have 2 questions, first, you mention that this will not work on gold plated junk, is junk include silver with karat less than 925, in my country we have 750k and 850k 18kgold plated silver jewelry this method wouldn't work? what is your advice to use in order separate the gold and refine the silver? may second question, u said that you don't like to use the lye and sugar very often, what is the best way to refine silver and what is your best for silver cementing, and do you use copper? waiting to hear from you, thanks in advance
Karat gold = inquart, part with nitric, refine with aqua regia. Gold filled, dissolve base metals, recover gold foils and refine with aqua regia. Gold plated = sulfuric acid stripping cell.
@@sreetipsthanks this is the rule no matter the karat of silver used? in my case 75% gold plated silver? , and sir what about what about my second question? regarding the best method for cementing the silver,?? thanks
Harold_V said that he did it by using a special flux that contained lots of soda ash - sodium carbonate (not sodium bicarbonate) in a clay crucible and gas fired furnace. But I’ve never tried it. I know of folks who did try in a melt dish and it failed.
Won't silver chloride decompose with heat? Just treat the silver chloride like silver powder and heat it. Of course, chlorine gas is going to come off, so maybe that's why....
It will reduce to silver metal if there’s plenty of sodium carbonate present. Heating silver chloride by itself won’t work well and causes loss of metal.
No, I just use regular wet chemical refining to produce three nines fine pure gold. Electrolytic refining will get it to four nines, but the added work for that unnecessary 4th nine isn’t worth the effort. Three nines fine is the industry standard for gold.
Yes, I’ve noticed that folks get mighty perturbed when I sell any silver. That’s why I quit doing it. Only sold this bar so that folks who want it, can own one of my refinings. (Edited once for spelling and content)
@@sreetips I was just kinda shocked but then again, look how crazy the spot price of Silver has been! It could be $35 Spot tomorrow, who knows? (I don't judge for spelling but do grade on Content A- LOL)
![MISSING: SLIM SHADY [Expanded Mourner’s Edition Trailer]](http://i.ytimg.com/vi/xh8qgHrOO1g/mqdefault.jpg)
Great little series man. I know the camera is a pain and you're just plain awesome for letting us come along. The camera angle makes me feel like I'm standing in front of you during the process. Very much first person POV. Can't wait for what you have next!
Enjoyed watching both parts. That silver bar is a chunky hunk of silver for sure.
What’s up Rob? Didn’t know you watched sreetips. I been watching for a long time
Mr. Sreetips, don't get into a rush. I'd prefer quality over quantity with your videos. I'd also like for you to enjoy making videos rather than stress about getting out 5 videos a week.
I agree, I would rather wait for great vids like these. I. Wait with patience for the next
Yea dude. Seriously too much stress and you'll lose out on the fun.
Quite correct. I am sometimes overcome by a sense of thankfulness, that I get to do this. I pray for strength to keep from cursing when something small doesn’t go the way that I wanted. Such is life. I’ve got so much more planned. Thank you for the encouragement.
@@sreetips I totally agree with these above guys, just take your time! Your videos are one of a kind on RUclips here and I for one am always waiting anxiously for your next ones to post. You do a great job and just don't worry about being in a hurry. I've watched the same processes for 100's of times lol; mostly your videos and I always end up learning something new :) GOD BLESS YOU and your family in all things; and a special TY for what you do for us! Totally helps in these troubled times to sit back and watch something that just melts the stress and anxiety right off you :) GOD BLESS again and tyty again :)
Dear Sreetips, I had to message you and tell you how much I enjoy your videos, they have kept me going through this mess we are experiencing at the moment. As a Chemistry graduate I have to say it took me right back and I have to say your fume cupboard technique is brilliant, even though I struggle with some of the Chemistry but that is because my degree is in organic chemistry. As a side note I have gone the opposite way to you, I started as a Chemist and ended up in aviation, currently I am an Air Traffic Controller so I think we have a lot in common. Kind regards, Mike.
Regarding the Lye/ Sugar reaction
The lye or sodium hydroxide converts the silver chloride to silver oxide (black colour)
To convert the silver oxide to silver powder you need a reducing sugar (reducing means likes to take oxygen away its oposite is oxidising)
Sucrose is not a reducing sugar but the excess sodium hydroxide will break it into Fructose and glucose both of whice are reducing sugars.
the two reducing sugars will take the oxygen from the silver oxide and leave the silver metal.
You can also use corn syrup which is mostly glucose so in that case you would not need excess Lye.(I am not sure if that would reduce the heat produced from the reaction.
Hope thats clear.
Cheers for the video.
That’s perfect. I’ve read it before on the forum. Thank you
Silver chloride and sodium hydroxide produces silver oxide, Plus Sodium Chloride, Water and O2. The sugar grabs the Oxygen atom off of the Silver oxide to produce D-gluconic Acid, Elemental silver, and heat.
I get it its a hobby but for some reason as you refine the metal I'm able to refine my stress out day and watch you do your work. What ever I think its cool as ever to see. Thanks man.
I was waiting on part 2! Glad you got it up so quick Sreetips!
Streetips the metal chemist homie!
Thank you for the great tutorials they are an inspiration.
Excellent, thank you
I always look forward to seeing your work over here in the UK, i to now run a silver cell 24/7 & ime slowly pouring & stocking bars, its a most fun hobby that combines my love of chemistry with precious metals. Keep up the excellent videos Sreetips, you have quite a following here in the UK
I can always count on you Sreetips! Everytime I can't sleep there is a new upload!! Whooooo Hooooo!
Well done Sreetips, thank you for bringing us along
iv got photo sensitive epilepsy so thanks for the filter sound. shout-out from the uk i like the videos mate keep them coming
Sir you. Critique yourself too harshly . I perceive you to be an honest and fair person you have the courage to let us learn along with you that's why I like your show and I'll look forward to every video you post.
Another chapter in the refining Bible! Thank you!
I liked the vision pan my friend she is great for refining the gold, and she can handle thermal shock👏👏
Excellent video! Great to see the alternative to cementing with copper, but I have to agree with you that looked like a lot more work and waste... Very nice silver bar too!
Wow your amazing! I watch all your videos and this is my dream job its like magic...
You remind me of a young boy who is just to excited to get to the toy store so you forget to look for traffic and sprint across the street, only to be hit by a car.... LOL You have an incredibly small amount of patience, you not only refuse to simply just dry the metals before trying to melt it, which is pretty damn nuts, but the real crazy thing you do that I can never really understand, is how you always drop the freshly poured molten bar into water, and then as soon as is humanly possible, you reach in and grab the thing?!?!?! I just laugh every time because I know you're getting slightly burnt and are just to excited to hold the new bar you don't even care. LMAO. It's adorable. I just watched you refniete fk0certrt-
I know you don't like that method but it's nice to see you do new ways! Well not new for me, I've seen you do it before. However you have twice as many subs now, so for alot of people it's new to them!
Have a GREAT Day My Friend!!!
Sucrose is not itself a reducing sugar, however in basic or acidic solutions the sucrose is broken up into fructose and glucose. In basic or acidic solutions the glucose can have its normal ring structure opened up to form a very reactive straight chain form of the sugar. This molecule reacts with the silver oxide and reduces it to silver metal and is itself oxidized. That’s also why the solution after silver production is a brown caramel color. You’re essentially forming caramelization side products of the sugar as it picks up the oxygen from the silver oxide.
Excellent thank you
15:45 First time I've seen Tollens' mirror in one of your videos. Great stuff!
That’s cool. Had to look it up on wikipedia.
I was beginning to worry when this didn’t follow part 1 in a day so. I was afraid the WuFlu had gotten you.
I have given up doing the lye/sugar method. Now I cement on copper, melt and cornflake, then into the silver cell.
Thanks for another great video.
Another awesome video as always. I was wondering why you just didn't use the copper coils at first. That is a lot of waste by doing it that way. Learn something new everyday. Thanks for the video.
Hello Sreetips, I feel that you wanted to complete the series in this Part 2 itself so it went on for 1 hour and some process was either speeded up or hasty. Example is your quick washes and pouring in waste buckets which carried away some silver.
I know you made this Part 2 with the purpose of finishing off the whole task. However I feel (anyone can after watching, no big deal) that you could have prolonged this series. The first 3 minutes and last 15 minutes is related to gold part. You could have made gold recovery into Part 2. You could have made Part 3 with Silver recovery. And to add more milage you could have made Part 4 using the waste buckets. I suggest this because you have a large quantity of waste solutions i.e. 2 gallons of blue and 3 gallons of red both of which contain residual silver.
Anyways, once again a nice video.
Good advice, thank you
Glad you're back!
This video was fascinating. So cool.
Once again old friend, this is sooo interesting. Thanks much fella ! I see you still need to make a small furnace like mine. It really saves time and gas.
Oh? Is there a video on building a small furnace on your channel? If not might i humbly request that you add that to your list of videos to make? I find myself in need of a cost effective furnace as well. It's getting expensive to refine gold lol
@@999fine5 HI, You bet. Come and visit my channel. My furnace/forge costs $25 CDN and costs $6 to rebuild. There is one video showing my setup. You may like the others as well.
sunlight can also be used to convert silver chloride.... might be an interesting thing to see if its better than spending on so much NaOH
I had the same thoughts about this. Probably concerned about the time and trouble involved in leaving a pile of AgCl sitting around outside, and perhaps what will happen with the Cl gas generated from it.
Looks like the size of golf ball. I wonder if they have in Supply a mesh type net to put over your Beaker that way most of the silver or some of the silver doesn't get through and into the waste bucket. I don't understand gold-plated silver bar
This is so cool,, How the basic Elements react together and actually make Metal,, fascinating..
Boats, I had a five gallon bucket sitting in the sink once, 1/3 full of silver oxide. I dumped in about 2 cups of sugar all at once and heard the silver oxide make some strange boiling noises after the sugar went in. I picked up a glass rod to stir and the silver began to react violently and erupted like a volcano spewing hot caustic silver over the top of the bucket and into the sink basin. Luckily the bucket was sitting on the drain and prevented the silver from going down the waste pipe.
@@sreetips Just amazing,, that experience surely went into the Tech Manual as a thing not to do..
When you’re ready to pour your silver, try adjusting the flame on your torch. Turn down the oxygen, the torch will then produce a Reducing Flame. The excess acetylene will scavenge ambient oxygen and should help alleviate the absorption and offgassing.
Quite true, I’ve used reducing flame in the past
Great job, good work.
You need a sponsorship with Corelle baking dishes. ;)
hey street . you helped me a lot in the past and i am rather new but i have found something cool whilst working in my shed . i have a beltsander that has worn down to NO grit , it is just cloth that cycles at high sppeds . i have been using it to mirror my flat gold surfaces with zero loss in weight and no rouge or anything needed so i thought if it may help you or you thought it sounded interesting you might have fun with it . cheers. p.s. i taped the trigger down as no dead man and flipped it upside down making it a stationary work surface .
Like a buffer, cool
@@sreetips yeah man! i don`t have a press or flex so the dremel just wasn`t cutting it . worked with what i had so poor mans solution i guess.
Yes, another video. Crank up the volume and put it on the big screen.
Sreetips I really admire your knowledge and the generosity you demonstrate day after day teaching us all with such clarity and focus. In short this is to say thank you so much and to let you know your importance in my life and world view.
That said, as I have watch you today there has been an unusually heavy consumption of various forms of lye and given that we only see your hands and gloves, I can only hope you are wearing face and eye protection. I have been doing chemistry and extractions since about 1983 with only a couple of minor mishaps until about a year ago when a very tiny partial drop of lye solution splashed out of a beaker and hit my right eye. The affect was instantaneous and a black hole was burned through my field of vision and it remains there today. It is permanently damage. I watch the vigorousglsss rod stirring and kitchen mixer you employ and I want to beg you handle KOH and NaOH more gently and don’t splash it about??!0”Please?
I would hate to see you injured and risk loosing you as a mentor.
Thank you
Douglas
Ok, I’ve thought the same thing. I’ll be more careful. Thank you
@@sreetips 😁
Ugh you make pouring bars look a lot easier than it is Sreetips =) Mine never come out that pretty. I've given some thought to just getting a rolling mill or something to smooth and flatten them out LoL
I would suggest to do some stochiometric calculations on converting AgCl to Ag2O. This would reduce the amount of waste quite much. Use some acid to neutralize the NaOH after reducing the silver oxide with sugar
I can tell by the color change. And I don’t know how stoichometry works very well.
Sreetips another awesome video.
I Admire your effort. Amazed that you bother to melt a 2 gram button of gold. I appreciate and I know you do it for the video (the money-shot ;)), but I'd be plenty satisfied is you collected the powder in the filter, dried it up and weighed it, then at some later point add it to other powders/smaller amounts to make a larger bar/button. Just think you'd save some money on various gasses.
Loved the video.
These something primal about watching metal liquify under a flame, even a small amount like in this video. It’s doubly satisfying when the metal is gold or silver.
That is one sexy bar, well done Sreetips 👌🏼👌🏼💯⭐️⭐️⭐️⭐️⭐️
I'm wondering if you put that glass beaker in a 2 1/2 gallon or 5 gallon bucket with ice all around it, if when you add the sugar that might take a lot of the ferociousness out of the reaction. :) Just a thought :) 17:28 in the video :)
@Sreetips
this video series sparked an idea in my mind.
Could you inquard Karad Scrap with Gold-Filled/-Plated material, instead of pure Silver/Copper?
Like a metal hodge podge where you melt down wildly different jewelry into an alloy with ~25% Gold. With the goal that if u need to use up that nitric anyway to dissolve the base metals in the Gold-Filled material u could include the refining of Karad Scrap or reinquard Goldshot with just one additional melting.
I think I could write you a calculator for that, that balances multiple alloys with different percentages of metals to get a 25% Gold Alloy in the end.
I anticipate your answer
I refine silver, so silver - yes. Copper, yes. Gold filled - maybe but be prepared for some junk that could make refining difficult. Gold plated hodgepodge - no. This would guarantee some junk getting into the process and gum it up. Using clean sterling silver or copper excludes junk metals and greatly increases our chances of a successful refining.
Thank you for your great response !
Ok I see, my thought may had yielded success in exactly this case with a pure base metal.
I saw your video about “can you directly put karat scrap into AR” and how the 1st attempt “failed”, I thought the main reason was that the gold concentration was to high and that was the cause of the dirty solution and the solids that gunk up the solution. Maybe I noticed that incorrectly but can you point out which metals tend to form solids if dissolved in Nitric or AR, in on of your coming episodes?
Your videos are ones of my favorites for years, especially that ones where you traverse unknown grounds ; )
PS: I have build a calculator for inquarting to visualize it for me and i try to make it online accessible
my first Build of an Inquartation Calculator, should work hope it is helpfull to somebody !
docs.google.com/spreadsheets/d/1RO_7mjfS-rbtqcpT1aaCNSagJ-gffTKZhtZSIGJ8lhE/edit?usp=sharing
Hi Sreetips - love your videos. Learning so much. Does the fume hood keep the fumes self contained within the unit or do we need a hose venting the fumes from the fume hood to the outside of the shop? I hope that makes sense.
There are ductless fume hoods that recycle the air back into the work space. Mine is a ducted hood that exhausts to the outside away from the work area. There’s a constant draft of air pulling the dangerous fumes away from me. This enables me to work with no mask or respirator.
Could you add ice before the sugar to cool it? Or would that inhibit the reaction?
I don’t know how it would influence the reaction.
Silver chloride rinse water blue and platinum precipitate yellow are my favorite colors.
Who ever thought up these colors for precious metals compounds is a genius! My favorite is the deep blue silver cell electrolyte
did you go with silver chloride because you refined gold plated silver or was there another reason you didn't use copper to cement the silver in this vid.? or maybe it was because there was all ready copper in it.
I was waiting for that melt dish to explode from the cold silver & water you put into it after your first melt. It would make a complete mess if it had exploded. You're extremely lucky it held together..
I’m glad it didn’t explode too
A couple questions , to reduce the amount of waste - couldn't you just evaporate off most of the water ?
Next is making stannous chloride , I've only made one batch in a dropper bottle and the tin does not dissolve and stays clear , your's seems to be cloudy ?
Thanks again
Evaporation May work but I’ve never tried it. My stannous is one gram pure tin shot, one gram stannous chloride crystals, 25ml distilled water, 30 drops hcl. Last for 3 months. It turns milky
So what do you have to do to remediate the wastes? Also, what other metals can you get from the wastes? Copper isn't worth a ton but it has value and what about any other silver group metals?
This is also a time when a small 3kg electric smelter would be nice
Waste treatment. Copper is considered waste
How do you treat the lye and sugar waste? Is lowering the ph enough t make it safe to discard?
Hi Sreetips. I have a question about your waste production. The majority of that liquid is water right? So couldn't you boil the water off outside or just set it out in the heat to evap off most of the water? That way you reduce your need for waste storage space. Is that possible or does it pose problems to concentrate down the waste water? Thanks Sreetips.
I used evaporation in the past. It will reduce volume but it’s slow and cumbersome. The lye and sugar is not that big of a deal. But the blue liquid could contain PGMs. Plus there’s still acid in the blue liquid that can still dissolve metal. For me, cementing everything on copper works the best. Less waste solutions, gets all the metals brought down with cement action and easy to treat the waste.
Yea you right! Well done
This might be a dumb thought but i was curious.
I know that often times you don't refine gold plated material because of cost vs yield being bad and you end up selling batches of hold plated jewelry.
But i was thinking, in the case of gold plated siver, could it be used rather than stirling to inquart your karat gold?
I imagine it would all a tiny amount of gold to the yield and other wise be mostly the same as using Stirling.
I imagine it would have more copper in it than Stirling but would it be enough to make that not worthwhile?
Yes, I often add gold plated silver for inquartation
Is it me, or does the gold-plated sterling jewelry have a thicker layer of gold than the gold-plated base metal jewelry? The gold yield was higher than I was expecting.
Yes, based on my result I’d say yes. However, that karat gold in with the foils partially dissolved and skewed my result.
VERY COOL!!
Saya dirumah banyak air Biru, saya bingung gimana cara mengolahnnya, Alngkah Rumitnya.
those free standing torch tanks are very scary .chain them to a table
Will do
@@sreetips your neighbors will be thankful they didn't end up with a tank in there living room
hi sreetips ,during smelting silver, i litle of an oxidizer like kno3 help eliminate contamination
I knew this and forgot to add some. Losing proficiency as I age.
Would the conversion of the silver with sugar work better if you put the beaker into a bucket with ice cubes?
That’s an idea. But I’d be worried about the glass breaking with such a high temp differential.
Absolutely awesome videos. What is the name of the book again that you reccomend in one of your other videos regarding previous metal refining?
Refining Precious Metal Wastes by C.M. Hoke free download on goldrefiningforum.com hard copy at gesswein.com type hoke in search block
Sir y that two small piece of karat gold don't dissolved in aquaregia can u explain pls
They did partly dissolve. They would have completely dissolved if I kept on heat and added more acids. The foils are very thin and dissolve even with no heat. But the karat gold reacts much slower because it is much thicker and more dense than the thin gold foils.
@@sreetips thankyou sir I will be waiting for next experiment take care
Why not do a Vacuum pull on the Sugar/lye/Silver mix? and do the same for the Waste water?
I’ve never tried that. But there’s still a ton of waste even with vacuum. I can, and have, done very thorough rinsing and testing until everything is pristine to get high purity silver. But it took days of rinsing and settling and it produced twice the amount of waste that is shown here.
@@sreetips Watching that entire Video (1&2) Gave me a real insight into why refiners pay below Spot for bullion and things like 14k-18k Jewelry and things like that. That is a LOT of work, with low yield vs. Hours, materials & Waste disposal. I had no idea it was so Work intensive. I always thought it was just: Throw it in a Crucible and pour on the Heat! Boy, was I wrong!
So, thank you for putting in the time to do these and responding to questions! That is not something I see on a LOT of Channels.
How much do you charge sir to refine precious metals??
Do you like to maintain a certain humidity in your workshop? Do you have a dehumidifier and/or humidifier running at any given time?
No, I used to have a window air conditioner but it broke several years ago. Now it’s just ambient temps in the 90s
21:21 - "we've got this this red material forming on top of it - red is probably copper hydroxide" - I guess you've meant "cuprous oxide", Cu2O (nowadays properly referred to as "Copper (I) Oxide"). Cu(OH)2 is distinctively blue, pretty much like all Cu++ salts, jelly like substance, and it usually quickly turns dark, as it easily decomposes to CuO (which is black) and H2O.
Cu2O is, rather reddish, dark brick-red sorta (see en.wikipedia.org/wiki/Copper(I)_oxide).
BTW, a fine Cu powder is also of similar colour, but I'm not sure whether one can actually reduce Cu++ ions to metallic Cu in this reaction (I think it can't be done, but I'm not sure and don't feel like searching for the answer now).
23:06 - "and this is the reason I really don''t like to use lye and sugar method because it produces so much waste" - wouldn't neutralising most of the lye (NaOH) first, using HCl, help that issue a bit? Or would it create some problems latter on?
@sreetips what is the origin of your RUclips name? Thanks for the great content btw.
I think he said before it was his last name spelled backwards.
A variation of my last name spelled backwards
SPITEERS?
I've found that golden syrup works best for this.
Karo syrup works also
Hello Sreetips,
I made this suggestion in previous videos a long time back and I am once again making.
You get yourself an Induction melting arrangement.
Benifits ??
1. Saving on losses from blown away gold / silver specially when they are in powder form.
2. With torch, the temperature is not uniform in your crucible. At the point of focus some gold / silver may vaporise.
3. Your video will be attractive as you can show in real time the charge in crucible go from solid to liquid in seconds.
4. The cost of new set up can be recovered with the losses (blown away and vaporized) eliminated.
In fact you can make a video by sweeping your floor under teh melting area, collect all dust and process to recover value.
Anyone else notice the windchimes @34:38? Sreetips is getting fancy with his editing! We have sound effects now!
Hey can you use steam to clean silver chloride instead of hot tap water to get the cooper out?
I’ve never done it do I don’t know
@@sreetips its worth a try I think it work
Is there any other way to effectively recover silver from gold plated 925 silver jewelleries without a lot of wastage? Can i somehow remove tarnished gold plating from my silver jewelry ?
I’ll be making a video about this soon. But to answer your question: there will be waste. The amount of losses from the waste will depend on the skill and technique used by the refiner. Getting high purity gold and silver is never quick and easy. Watch for the video.
What borax? You didn’t cover adding borax
@sreetips sir i have 2 questions, first, you mention that this will not work on gold plated junk, is junk include silver with karat less than 925, in my country we have 750k and 850k 18kgold plated silver jewelry this method wouldn't work? what is your advice to use in order separate the gold and refine the silver?
may second question, u said that you don't like to use the lye and sugar very often, what is the best way to refine silver and what is your best for silver cementing, and do you use copper?
waiting to hear from you, thanks in advance
Karat gold = inquart, part with nitric, refine with aqua regia. Gold filled, dissolve base metals, recover gold foils and refine with aqua regia. Gold plated = sulfuric acid stripping cell.
@@sreetipsthanks this is the rule no matter the karat of silver used? in my case 75% gold plated silver? , and sir what about what about my second question? regarding the best method for cementing the silver,?? thanks
I use gold plated silver to inquart my karat gold. I use copper to cement silver because it will also drop the PGMs, if present.
@@sreetips thank you
better when you don't put the screens in front of the camera, but great content, thank you :)
How about using temperature to directly convert silver oxide to silver metal via degradation?
That’s works - so I’m told
@@sreetips Would generate WAYY less waste water
How do you keep your watch from getting harmed by the chemicals you use?
I take it off if I am doing something that could harm it
What is the crystal structure on the silver bar? I just saw the cool ripple
If you look carefully you can see areas that have a bluish tint. Like natural crystals but two dimensional on the surface of the bar.
A few drops of Hydrofluoric acid will remove the silica.
What about melting Silverchloride to elemental Silver. Does it work ?
Harold_V said that he did it by using a special flux that contained lots of soda ash - sodium carbonate (not sodium bicarbonate) in a clay crucible and gas fired furnace. But I’ve never tried it. I know of folks who did try in a melt dish and it failed.
Thank you a lot 👍 enjoying all of your videos. Great job. Greetings from Germany ✌
As of today Nov 12th 2022 he has $208 in silver and $98 in gold in this video with the current prices and weight he got and showed in the video
So a total of $306 in all if he sold it today
Please do green gold create and separate vid
Good morning master prop I loveou
I want to build a silver cell so bad lol
Won't silver chloride decompose with heat? Just treat the silver chloride like silver powder and heat it. Of course, chlorine gas is going to come off, so maybe that's why....
It will reduce to silver metal if there’s plenty of sodium carbonate present. Heating silver chloride by itself won’t work well and causes loss of metal.
@@sreetips Hmm - I did not know that. But, if you expose AgCl to bright light I know that will make it decompose - that's how film works.
OMG so funny 3 9's by mistake lol.
Do you still have a gold cell running?
No, I just use regular wet chemical refining to produce three nines fine pure gold. Electrolytic refining will get it to four nines, but the added work for that unnecessary 4th nine isn’t worth the effort. Three nines fine is the industry standard for gold.
How do the Canadians get .9999 for their $5 maples?
Electrolytic refining
Thank you sir । I like your chanel too much ।here is 39% h c l ,69% nitrik । How can make ar ।
I use about 150ml HCl and 18ml to 20ml nitric to dissolve an ounce of gold.
11:39 anyone else craving chocolate pudding at this point? :)
🤗👍😎
At the time of your video 1.7g of gold is worth $102 and your 9.4 troy oz silver is worth $212.
I normally just add gold plated silver to karat gold for inquartation.
nice! send me one.
Sugar sugar oh honey honey....
6 days left on bidding and people are offering about 4 dollars over spot? That's not too bad but.....not my money lol.
Yes, I’ve noticed that folks get mighty perturbed when I sell any silver. That’s why I quit doing it. Only sold this bar so that folks who want it, can own one of my refinings. (Edited once for spelling and content)
@@sreetips I was just kinda shocked but then again, look how crazy the spot price of Silver has been! It could be $35 Spot tomorrow, who knows?
(I don't judge for spelling but do grade on Content A- LOL)
👎👎👎👎👎👎