When I started following your channel, Sr. Chief, I did some stoichometric research on AR and I didn’t understand why you added the nitric in increments, but I reasoned that because you are the expert for these processes, you knew something not greatly discussed on the interweb. I just stumbled on this video and NOW I get it. Thank you for your entertaining instruction! 👍👍👊👊
]hello, im Bobby and I over the last few years have attempted to do the aqua Regia thing but never finished with many types and quantities of elect gold, now I have approx 20 gallons of dirty gold solution, nitric, hydrochloric,peroxide how would you say to start the process to finish it up, some of it is pretty thick
Hello Sreetips! Thanks for the plain and simple demonstration. Now I understand where and how I lost about 9g gold with my first experiment. You re-newed my interest in recovering preces metals. Thanks!
Outstandingly helpful + insightful + and obviously massively educational outright to be certain that you conveyed several GIGANTIC and hugely 'nightmarishely troubling avoidance of all sorts of unnecessary ballyhoo and tomfoolery' kind sir so you have my gratitude and appreciation for sharing this !!
Very Nice Bar!! I've seen a few other RUclipsrs premix their aqua regia, and I've seen the difference between their cloudy/dirty looking solution compared to yours! That's why I am your student, Mr. Sreetips!!!
Iam mohammed from sudan Iam a chemist and i have 5 years experience in the gold field and i didn't hear about that But now iam glad to get this opportunity from you i like your video thank you very mutch
Incremental dosing of the nitric acid is one of the most beneficial techniques that l have ever learned. I learned it from members of the goldrefiningforum.com Harold_V and GoldSilverPro.
I was clueless 'bout the mixture of the acids. I have a better picture of transforming the powder now. Thanx sreetips', I needed this vid to complete my travel to pure gold !!! and a HIGH 5 to ya' ,you and some others online really know what goes on.
These videos are always so Informative! I'm about ready to attempt my first try at refining electronic PCBs, Just need to finish building my ventilation system in my garage and I'm going to give it a go!
Dear sir. Your video helped me a lot. Y was in trouble with some gold dissolved in aqua regia and after see your video I could sort it out . Thank you .
Hey Sreetips. You really are great at what you do. I am wondering if your exhaust flows through a filter, or if it just blows high above the house and neutralizes in the air? Please let me know. Thanks for the videos!
Another grade a video! Definitely the guy to watch if you're interested in the home refining hobby and all the joys and occasional headaches it brings. Haha thumbs-up buddy!
I only wish that videos on refining, like the videos that I produce, were available when I started doing this as a hobby 8 years ago. It's why I started posting them, so that others could learn from my experience. Thank you.
Thank you you are so awesome I have been trying for a long time to complete this process I made it several times but couldn't remember how it was supposed to do it but you have made it so simple for me I thank you very much
I've been on my farm for 18 years and decided to make a 6" jaw crusher and small ball mill and was looking for a way to use acid to dissolve the gold and this video was just the ticket on my quest of learning a new hobby
Interesting approach. You can reclaim some of that nitric acid by bubbling the nitrogen dioxide through water and then distilling to concentrate it. It won't get all of it but that would allow you to recycle some of your nitric acid.
Absolutely fantastic demo. Superb. The only mistake I believe you made is: When you made the premix AR you went 4:1 HCL to Nitric. At 25:45 you say the 50 ml leftover AR probably contains 8 ml nitric. No, I say 10-12 ml nitric. Then, on the second redissolve where you've combined the two batches and are "reusing" the leftover premix AR, you calc that you'll need 36 ml Nitric. I agree. You start by adding 15 ml new nitric over and above the premix...then just a bit more, in single ml doses. Be that as it may....right or wrong on the math, because you are stingy with your nitric and only add it in the small increments, you made your main point *a second time*. Terrific video, excellent, can't say enough good things about your technique.
All of you wright the target of sreetip to control nitric ratio and get it . Some time we recognise some small mistake but not important if we after our recognisatio cause we locking at the giant aim
(Incremental nitric dosing to dissolve gold) and (inquarting the gold with silver then parting with nitric acid) are the two most beneficial things that I have ever learned in my gold refining experience. Sometimes I over shoot with the nitric. When I do, I never use urea. Instead, I use sulfamic acid to kill excess nitric. Sulfamic acid is tile cleaner from Home Depot, about $8 for a pound.
That is good to know about the sulfamic acid. I can use urea as I already have about 2 lbs of it that I inherited. Have you ever done a video on the environmentally safe way to dispose of spent chemicals? I am not a chemist and am worried about waste chemical disposal.
Senior Chief, once again I thank you for your exceptional video! Our Navy training and training our own with attention to detail come shining through on your videos. Very Respectfully, Michael E. Myers BTC(SW/AW) USN(Ret.)
thanks for the video, a lot of books and other videos talking bout the ratio and the same that i do, but you made up one which clearly suited and excellent for dissolving the gold. vote to the BEAKER NO.1.
Excellent information as always. Thank you for taking the time to prepare for, shoot, and post the video. (And wasting a little nitric acid for our benefit) Nitric acid can be the biggest investment one has to make doing this kind of stuff in this manner.
I have used Hydrochloric acid and Nitric acid to dissolve fine gold in sand and it does not work, Am I doing the solution for this two acids. Great video though.
A good job well done. I have been researching this subject or a week now and this is invaluable! Thanks for sharing. I hope to obtain a=some scrap gold soon and refine it myself.
Gold covered pins are gold plated. There is a very thin coating of gold over a base metal. Usually brass or copper, but sometimes steel. Steel will not dissolve very well in nitric acid. Use a magnet to see if you have steel or brass as base metal. In any case, the amount of gold will be very small. And you must use a sulfuric acid stripping cell to deplate the gold. It would be a hard first-time experiment to pull off. I've done milspec pins by dissolving the base metal (nonmagnetic brass) with hot dilute nitric acid, then dissolving the resulting gold foils in aqua regia, but it took a long time and used much acid. Good luck with your refining experiments.
Im not sure if i asked on this video or one of your other ones... but the green paper filters u use in your buchner filter what kind of filters are those im looking for buchner filters and all im finding are the flat round ones can you point me in the right direction to buy the ones you use? I was half thinking about trying to use a dang coffee filter if i really couldnt find the ones you use
Hi Sreetips.... I am wondering if you could have added more distilled water to reduce the nitric acid some as you would dilute the solution some and then add the SMB. Just wondering if you could have lessned the amount of SMB used. Thanks for the great video.
They both looked different throughout the entire process. Even the filters had different looking material after I filtered each 1.5 troy ounce batch. But they both came from a single 3 troy ounce batch divided equally in two.
Hi Sree. I was watching your videos and had another youtuber pop up while surfing, Archimedes Channel. He used a screen, id guess stainless screen, to break his gold down to small granules while pouring into water container. Thought youd like the idea so im sharing it. You can see it on his channel. Id post the link but not sure thats the right thing to do on yer channel. Love your videos sir. Thank you.
I'd also like to thank you I feel like with the instruction you gove in this video ill be able to reproduce the process. I have around 2000 grams of recycled gold bars, I'm going to melt them down into little bb sized shots and then use your instructional video here to see home much gold i can actually get out of them. I live in the country in the sticks and Ive ordered so much lab equipment this week off amazon I'm pretty sure they are going to think im aetting up a meth lab. But i have the confidence now to really give it a try. I've been thinking about trying for some time and ive been buying up recycled gold when i can get it super cheap on ebay. I'd be happy if i got a 10% return on the gold 20 grams off of 2000 grams id be happy it would at least pay for the equipment and maybe next batch will turn a profit. I also won an order of 0.87 pounds of 24k gold flake. I shouldnt have to do anything to that correct? Id hatecto melt it down to a bar and it have some impurities in it. I'm new to all this so im not exactly sure these first few time will definitely be experiments and hopefully i get it right. And again Thanks a million for you video's so far they are by far the best inatructional videos I've seen!! 👍👍
Your video is very useful. Could you please indicate the economics of this business; in short what is the gold recovery over your total expenses. Thanks
Great thanks for information beautiful... Just one thing ineed to know.. for( 500gram ) how long it will take for dissolving and how much in jar No1 camical I need.. pls reply
Very beneficial video given the cost of the Nitric Acid I just ordered . I understand this was a demonstration, but should I have An excess Nitric situation, can just adding urea knock it down without effecting the metals? Thank you ..
Hello Streetips, Aqua Regia question: I have missed in your videos the amount of HCL to start with for every expected oz. yield of gold. Thanks for the great videos.
✟ MY SIMPLE THIS STOP MY STEP NICOLA.it's nice to believe that you are a good trainer.you are a unique person.send me that sign ✟.tips are important to me.I never forget your goodness
Idk if it's right but has been working for me is I add a few tbsp of sodium bicarbonate to knock down the nitric. If I accidentally put too much sodium bicarbonate the SMB won't react and then I just put back on the heat and that releases the SO2. Sreetips way is WAY better of course less waste of chemicals but as a back up I do this been working
I know this one of your older videos so hopefully you see this and can respond. Also, you've probably covered this before, so sorry for asking again: What is the difference in processing the gold twice? I assume it makes it more pure the more times you process. Can you put some numbers to the difference between the first and second time? Also, in the second run you disolved the paper filter along with the gold. Does that stay in the solution or "fume off", and does it cause any impurity with the final gold?
Every time I dissolve, filter, precipitate, the gold gets cleaner through each cycle, to a point. Then it’s diminishing returns. The paper will disintegrate (not dissolve) and then it can be easily filtered out.
Larry, You may do well to make you're own nitric acid. I use concentrated sulfuric acid from Rooto brand drain opener from Ace Hardware (about $20 a gallon) and potassium nitrate from Dudadiesel.com (they supply chemicals for the bio-diesel trade and a 10 lb bag is about $20). Look up Nurdrage on RUclips for the proceedure to make very concentrated (over 90%) or Nile Red on RUclips for standard 70%.
Thanks for your tips .it's helped me out allot .incremental amounts of nitric is the answer .if you come to Australia ill put a shrimp on the bbq and have a cold bear for you Tim from AUSTRALIA victoria Melbourne .god bless
Sreetips, your videos couldn’t be better! Thank you for such solid and straightforward tutorials! A real quick question though… I have a batch of AR with placer Gold and Mercury in Solution. I’ve denoxed the AR w/ Sulfamic Acid and diluted w/ 3x water by volume to precipitate and filter any silver. Game plan is to drop AU w/ SMB as usual. After filtering to recover AU my understanding is that I can precipitate Mercury w/ Lye (Sodium hydroxide) to Mercury Oxide. Then Dry and use strong heat to drive off the oxygen to re-claim my liquid Mercury. Does that sound accurate for pulling this off, or is there a better route?
I think a very good way to dissolve gold is by adding nitric acid in small portions. Saving nitric acid. Считаю очень хороший способ растворения золота прибавляя азотную кислоту небошими порциями. Экономия азотной кислоты.
I tried the pemix way before I seen your video. After melting the stuff I got out of the mix, I ended up with what looks like copper but weighs more than same sized peice of copper.. also has a lighter copper tone that copper...I have a 1 pound chunk of industrial electrical metal that is 5 to 8 k gold.. I think the other metals are copper, silver..
What are the filters collecting? Great video on efficiency by the way, incremental dosing is brilliant. I thought I was going to lose my mind when you were adding the sodium metabisulfite. It was a little like Groundhog Day the movie. Thanks for the great info.
The filters are collecting what filters always collect. Suspended particles of various contaminants. Could be undissolved particles of anything that's not gold.
This channel is awesome. Streetips is killing it lately.
yes he is
Totally he's going to be 1 million subscribers in a few months at this rate :).
Fantastic sreetips, you made step #1 look so perfect, ty
I've learned the majority of anything I've learned as well as correcting mistakes I've made by watching Sree. Definitely is the best at what he does.
When I started following your channel, Sr. Chief, I did some stoichometric research on AR and I didn’t understand why you added the nitric in increments, but I reasoned that because you are the expert for these processes, you knew something not greatly discussed on the interweb. I just stumbled on this video and NOW I get it. Thank you for your entertaining instruction! 👍👍👊👊
]hello, im Bobby and I over the last few years have attempted to do the aqua Regia thing but never finished with many types and quantities of elect gold, now I have approx 20 gallons of dirty gold solution, nitric, hydrochloric,peroxide how would you say to start the process to finish it up, some of it is pretty thick
Same way you eat an elephant - one bite at a time. Too many variables to make a good prediction.
Incremental seemed faster in the long run. This was VERY informative and easy to follow. Thank you @sreetips !
This is the best video on this subject that I have ever seen....Now I understand.
Hello Sreetips! Thanks for the plain and simple demonstration.
Now I understand where and how I lost about 9g gold with my first experiment.
You re-newed my interest in recovering preces metals. Thanks!
Welcome.
Outstandingly helpful + insightful + and obviously massively educational outright to be certain that you conveyed several GIGANTIC and hugely 'nightmarishely troubling avoidance of all sorts of unnecessary ballyhoo and tomfoolery' kind sir so you have my gratitude and appreciation for sharing this !!
Very informative video. Never thought that much of the chemicals were being wasted.
here here
This man is a real hero, he made the work very easy, ang simple
Very Nice Bar!!
I've seen a few other RUclipsrs premix their aqua regia, and I've seen the difference between their cloudy/dirty looking solution compared to yours! That's why I am your student, Mr. Sreetips!!!
Thanks for this video. I'm pursuing a career with a new company doing this on a large scale and was having trouble understanding the process.
Sir I also want to do the same on a larger scale and appreciate your help if u want to
I love your videos sometimes it can be a bit complex but awesome insight and teaching you sir are a street genius
Iam mohammed from sudan
Iam a chemist and i have 5 years experience in the gold field and i didn't hear about that
But now iam glad to get this opportunity from you
i like your video thank you very mutch
Incremental dosing of the nitric acid is one of the most beneficial techniques that l have ever learned. I learned it from members of the goldrefiningforum.com Harold_V and GoldSilverPro.
@@sreetips
I have questions sir.
How can make gold standard 1000 ppm stable for 7YEARS like AMERICAN standard
This guy is a dame thing people,expert,genius,knows what hes doin,,,,godspeed pal
I was clueless 'bout the mixture of the acids. I have a better picture of transforming the powder now. Thanx sreetips', I needed this vid to complete my travel to pure gold !!! and a HIGH 5 to ya' ,you and some others online really know what goes on.
Awesome video I have a ton of electronic gold and I have to resign so this makes a big difference than what I've learned before.
Big help!! Great information and well explained. I’m glad you’re out there Sreetips! 👍🏽
I am astounded how much smb and extra steps premix ar took thank you for setting me straight.
These videos are always so Informative! I'm about ready to attempt my first try at refining electronic PCBs, Just need to finish building my ventilation system in my garage and I'm going to give it a go!
Another crackinghly informative video. Many thanks. Your videos are an invaluable learning aid! Keep 'em coming.
God bless you my man. I'm an apprentice and I learn a lot from you video. thank you love it, what a waste on number 2? wow wow!!
Dear sir. Your video helped me a lot. Y was in trouble with some gold dissolved in aqua regia and after see your video I could sort it out . Thank you .
Excellent, thank you
Thanks alot for taking the time to break it down. Just getting started with my first cook
Hey Sreetips. You really are great at what you do. I am wondering if your exhaust flows through a filter, or if it just blows high above the house and neutralizes in the air? Please let me know. Thanks for the videos!
Once again a great and informative video by you, sir.
Another grade a video! Definitely the guy to watch if you're interested in the home refining hobby and all the joys and occasional headaches it brings. Haha thumbs-up buddy!
thankyou for this VERY valuable tip- incremental over premix. Good
The single most valuable and beneficial refining tip that I've ever learned. Thank you.
Excellent lab. Work and the use of fume hood. Safety ☝️
🙏 for your kindness teaching. God Blessed
Your videos are beyond exceptional sir by the way. You have my respect sir!
I only wish that videos on refining, like the videos that I produce, were available when I started doing this as a hobby 8 years ago. It's why I started posting them, so that others could learn from my experience. Thank you.
Thank you you are so awesome I have been trying for a long time to complete this process I made it several times but couldn't remember how it was supposed to do it but you have made it so simple for me I thank you very much
How do recover from computer boards
I've been on my farm for 18 years and decided to make a 6" jaw crusher and small ball mill and was looking for a way to use acid to dissolve the gold and this video was just the ticket on my quest of learning a new hobby
Bravo
Thanks for making this video. Best how-to on the web!
Great video. What is the amount of aqua regia to use to dissolve 10 gms of gold
Interesting approach. You can reclaim some of that nitric acid by bubbling the nitrogen dioxide through water and then distilling to concentrate it. It won't get all of it but that would allow you to recycle some of your nitric acid.
Or just use some gold that has already been refined. I use that to eat up the left over nitric
obviously a professional teacher
JUST SAVED AN OLD MAN A LOT OF WORK==THANK YOU=
Sodium hydroxide before you do smb. It will neutralize the acids. Then you won't have a violent reaction when you add the smb.
By far best video explaining this
Thank you for another in depth video. I would live to see you make a video with 36% HCL. And 99% Potassium Nitrate powder. Aka Poor man's Auqa Regia
this guy knows of what he speaks
Excellent video done by this man, you solved my problem thank u sir
Man that's a tight demo. Yeah you got it all figured out man haha very nice
Excellent video Sir! Thanks for sharing your valuable knowledge!
Absolutely fantastic demo. Superb. The only mistake I believe you made is: When you made the premix AR you went 4:1 HCL to Nitric. At 25:45 you say the 50 ml leftover AR probably contains 8 ml nitric. No, I say 10-12 ml nitric. Then, on the second redissolve where you've combined the two batches and are "reusing" the leftover premix AR, you calc that you'll need 36 ml Nitric. I agree. You start by adding 15 ml new nitric over and above the premix...then just a bit more, in single ml doses. Be that as it may....right or wrong on the math, because you are stingy with your nitric and only add it in the small increments, you made your main point *a second time*. Terrific video, excellent, can't say enough good things about your technique.
Yes, I was hoping that the second refining would drive the point home again. Thank you.
All of you wright the target of sreetip to control nitric ratio and get it . Some time we recognise some small mistake but not important if we after our recognisatio cause we locking at the giant aim
Very,, very informative. This eliminates the use of urea to kill the nitric acid. Now I need to buy/build a fume hood.
(Incremental nitric dosing to dissolve gold) and (inquarting the gold with silver then parting with nitric acid) are the two most beneficial things that I have ever learned in my gold refining experience. Sometimes I over shoot with the nitric. When I do, I never use urea. Instead, I use sulfamic acid to kill excess nitric. Sulfamic acid is tile cleaner from Home Depot, about $8 for a pound.
That is good to know about the sulfamic acid. I can use urea as I already have about 2 lbs of it that I inherited. Have you ever done a video on the environmentally safe way to dispose of spent chemicals? I am not a chemist and am worried about waste chemical disposal.
Very , very, very good. Thanks for making this video
Indeed - priceless info. Thank you.
I'm always watching your videos, they seem to be the most informative of all!
Just one simple question, where is it that you buy your lab equipment?
I got everything on eBay
@@sreetips Hello... can I message you in personal please ?
My email is in my channel description, click on the "about" and you'll see it first thing.
Thanks for taking the time to explain.
Senior Chief, once again I thank you for your exceptional video! Our Navy training and training our own with attention to detail come shining through on your videos. Very Respectfully, Michael E. Myers BTC(SW/AW) USN(Ret.)
The navy was good to me. And I was good for the navy.
Love your work i used orange soda to precipitate gold out my soulition
thanks for the video, a lot of books and other videos talking bout the ratio and the same that i do, but you made up one which clearly suited and excellent for dissolving the gold. vote to the BEAKER NO.1.
Excellent information as always. Thank you for taking the time to prepare for, shoot, and post the video. (And wasting a little nitric acid for our benefit) Nitric acid can be the biggest investment one has to make doing this kind of stuff in this manner.
Thank you very much Sir, I have really learned something!!
I have used Hydrochloric acid and Nitric acid to dissolve fine gold in sand and it does not work, Am I doing the solution for this two acids. Great video though.
A good job well done. I have been researching this subject or a week now and this is invaluable! Thanks for sharing. I hope to obtain a=some scrap gold soon and refine it myself.
Mark, if you are going to refine scrap gold made from karat gold then please see my video on how to refine scrap gold jewelry.
I have bought some gold covered pins on EBay. Hopefully they will be ok for my first attempt.
Gold covered pins are gold plated. There is a very thin coating of gold over a base metal. Usually brass or copper, but sometimes steel. Steel will not dissolve very well in nitric acid. Use a magnet to see if you have steel or brass as base metal. In any case, the amount of gold will be very small. And you must use a sulfuric acid stripping cell to deplate the gold. It would be a hard first-time experiment to pull off. I've done milspec pins by dissolving the base metal (nonmagnetic brass) with hot dilute nitric acid, then dissolving the resulting gold foils in aqua regia, but it took a long time and used much acid. Good luck with your refining experiments.
Thanks for the info!! Much appreciated! I think maybe I should have acquired some karat gold for my first experiment 🙄
thank you for showing ,the correct way to do this , great ,you killed it .
Im not sure if i asked on this video or one of your other ones... but the green paper filters u use in your buchner filter what kind of filters are those im looking for buchner filters and all im finding are the flat round ones can you point me in the right direction to buy the ones you use? I was half thinking about trying to use a dang coffee filter if i really couldnt find the ones you use
Really enjoy your channel very educational
I really learn some more from this video,i learn my way is not always the best, thanks well laid out video.
Master Class Sir.
Is that gold that is leaching out in the fumes? If so can you filter the fumes exhaust then extract the gold from the filter paper
I use a mix of about 10/1 HCl to N. Works fine.
Hello Mrs and Mr Sreetips.
Thank you so much for this clip Sir.
Wish of them is cost less of the two beakers ? I mean the cost of accid.
thanks for making this video explains well the process of processing gold thanks
Awesome. Information buddy
Thanks for another video..
Thank you.... Sir.... It was so informative
Awesome lesson!
@ 32:03 was as a switch was flipped. Amazing
Hi Sreetips.... I am wondering if you could have added more distilled water to reduce the nitric acid some as you would dilute the solution some and then add the SMB. Just wondering if you could have lessned the amount of SMB used. Thanks for the great video.
I am glad to you I am preparing to do the experiment
Big thanks to you for this great lesson you gave me
Excellent work thank you for sharing this
Very nice, learn a lot. Thanks and keep up the good job.
This is an awesome tip. Did you just use a standard propane torch to melt your precipitate into the bar? Thank you for sharing your knowledge!
No, MAP gas in a yellow bottle
Hi at 10:16 the solution in flask 2 seems somewhat cloudy compared to the solution in flask 1
They both looked different throughout the entire process. Even the filters had different looking material after I filtered each 1.5 troy ounce batch. But they both came from a single 3 troy ounce batch divided equally in two.
very peculiar!
Hi Sree. I was watching your videos and had another youtuber pop up while surfing, Archimedes Channel. He used a screen, id guess stainless screen, to break his gold down to small granules while pouring into water container. Thought youd like the idea so im sharing it. You can see it on his channel. Id post the link but not sure thats the right thing to do on yer channel. Love your videos sir. Thank you.
35:00 Why the HCl rinse at the end? Is it to to dissolve and flush any impurities, and leave pure gold in the filter?
If present, HCl rinses dissolved metals from the gold better than water
@@sreetips
Okay, what I thought, thx.
I'd also like to thank you I feel like with the instruction you gove in this video ill be able to reproduce the process. I have around 2000 grams of recycled gold bars, I'm going to melt them down into little bb sized shots and then use your instructional video here to see home much gold i can actually get out of them. I live in the country in the sticks and Ive ordered so much lab equipment this week off amazon I'm pretty sure they are going to think im aetting up a meth lab. But i have the confidence now to really give it a try. I've been thinking about trying for some time and ive been buying up recycled gold when i can get it super cheap on ebay. I'd be happy if i got a 10% return on the gold 20 grams off of 2000 grams id be happy it would at least pay for the equipment and maybe next batch will turn a profit. I also won an order of 0.87 pounds of 24k gold flake. I shouldnt have to do anything to that correct? Id hatecto melt it down to a bar and it have some impurities in it. I'm new to all this so im not exactly sure these first few time will definitely be experiments and hopefully i get it right. And again Thanks a million for you video's so far they are by far the best inatructional videos I've seen!! 👍👍
And it looks like incremental doses won "doesn't stress out the chemist" award for a controlled experience.
Great point. Any video on the recovery from the waste?
I did a multi-part series on my stock pot. All of my gold refining waste goes through my stockpot.
Your video is very useful. Could you please indicate the economics of this business; in short what is the gold recovery over your total expenses. Thanks
Rewriting parts of Hokes book...and for the better..2 thumbs way up!
Perfect screetips im following it for sure
Great thanks for information beautiful... Just one thing ineed to know.. for( 500gram ) how long it will take for dissolving and how much in jar No1 camical I need.. pls reply
The premix 4 to 1 beaker dissolved in 20 minutes. The incrementally dosed nitric beaker took almost two hours to dissolve completely.
Thanks
Very beneficial video given the cost of the Nitric Acid I just ordered . I understand this was a demonstration, but should I have
An excess Nitric situation, can just adding urea knock it down without effecting the metals? Thank you ..
I don’t use urea. I don’t know if it will work or not. All the pros that I know use sulfamic acid.
Hello Streetips, Aqua Regia question: I have missed in your videos the amount of HCL to start with for every expected oz. yield of gold.
Thanks for the great videos.
I use about 150ml to 200ml for each ounce of pure gold.
✟ MY SIMPLE THIS STOP MY STEP NICOLA.it's nice to believe that you are a good trainer.you are a unique person.send me that sign ✟.tips are important to me.I never forget your goodness
It was a lot helpful. Thanks
Great video. Is it possible to recover silver out of the waste solution?
Idk if it's right but has been working for me is I add a few tbsp of sodium bicarbonate to knock down the nitric. If I accidentally put too much sodium bicarbonate the SMB won't react and then I just put back on the heat and that releases the SO2. Sreetips way is WAY better of course less waste of chemicals but as a back up I do this been working
I know this one of your older videos so hopefully you see this and can respond. Also, you've probably covered this before, so sorry for asking again: What is the difference in processing the gold twice? I assume it makes it more pure the more times you process. Can you put some numbers to the difference between the first and second time? Also, in the second run you disolved the paper filter along with the gold. Does that stay in the solution or "fume off", and does it cause any impurity with the final gold?
Every time I dissolve, filter, precipitate, the gold gets cleaner through each cycle, to a point. Then it’s diminishing returns. The paper will disintegrate (not dissolve) and then it can be easily filtered out.
Thank you.
Where do you get your nitric acid and how much do you pay.
Larry, You may do well to make you're own nitric acid. I use concentrated sulfuric acid from Rooto brand drain opener from Ace Hardware (about $20 a gallon) and potassium nitrate from Dudadiesel.com (they supply chemicals for the bio-diesel trade and a 10 lb bag is about $20). Look up Nurdrage on RUclips for the proceedure to make very concentrated (over 90%) or Nile Red on RUclips for standard 70%.
a quart is expensive i paid 70 dollars for good nitric id have to look at the purity it comes with a heavy brown bottle taped to avoid leakage
good comparison, thanks
Thanks for your tips .it's helped me out allot .incremental amounts of nitric is the answer .if you come to Australia ill put a shrimp on the bbq and have a cold bear for you Tim from AUSTRALIA victoria Melbourne .god bless
Shrimp on he Barbie in Australia, it's something I've always dreamed of.
sreetips COME and stay at my ranch in Victoria i have 12 bedrooms .free .we don't have guns in Australia so bring your own .i have a had a few STAY .
Hell, Your channel is great. I noticed you heated up both solutions. How much was the operating temperature?
Your awesome bro I do the paranna or the Blanco but if it's very good gold I hit it with aqua but yeah you got it add it lil by lil is the best way
Sreetips, your videos couldn’t be better! Thank you for such solid and straightforward tutorials!
A real quick question though… I have a batch of AR with placer Gold and Mercury in Solution. I’ve denoxed the AR w/ Sulfamic Acid and diluted w/ 3x water by volume to precipitate and filter any silver. Game plan is to drop AU w/ SMB as usual. After filtering to recover AU my understanding is that I can precipitate Mercury w/ Lye (Sodium hydroxide) to Mercury Oxide. Then Dry and use strong heat to drive off the oxygen to re-claim my liquid Mercury. Does that sound accurate for pulling this off, or is there a better route?
Cameron, I’ve never used mercury in any of my processes. I don’t have any experience with it.
I think a very good way to dissolve gold is by adding nitric acid in small portions. Saving nitric acid.
Считаю очень хороший способ растворения золота прибавляя азотную кислоту небошими порциями. Экономия азотной кислоты.
I tried the pemix way before I seen your video. After melting the stuff I got out of the mix, I ended up with what looks like copper but weighs more than same sized peice of copper.. also has a lighter copper tone that copper...I have a 1 pound chunk of industrial electrical metal that is 5 to 8 k gold.. I think the other metals are copper, silver..
What are the filters collecting? Great video on efficiency by the way, incremental dosing is brilliant. I thought I was going to lose my mind when you were adding the sodium metabisulfite. It was a little like Groundhog Day the movie. Thanks for the great info.
The filters are collecting what filters always collect. Suspended particles of various contaminants. Could be undissolved particles of anything that's not gold.
Great video!