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Re-refining gold using bromine (Patreon)

Published:
2018-05-17 09:10:24
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Re Refining gold

Help me make videos by donating here: https://www.patreon.com/CodysLab Follow me on Facebook: https://www.facebook.com/codydonreeder SubReddit: https://www.reddit.com/r/codyslab/

Comments

Zorn

genuinely curious: How much gold do you estimate you have "lost" during all the processes that you did with it? Not "ooh you probably lost $1000 from your shenanigans", just curious how much gold is "lost" from working with it

Anonymous

Your brave working with Bromine. Well you have a fumehood. Is that bromine converted back into sodium bromide? If the bromine was allowed to be stored or neutralized this may be a good method of purifiying gold. :)

Silviu T

Very nice process, still a bit labor intensive though (as it would be no matter what). You need a couple of lab jacks though to make your installations fit better (for instance in the first setup where you distilled the bromine, and you needed to have the receiving flask at an angle). Also a small correction, you say the resulting solution contains a mix of copper and gold chlorides, I think you meant bromides. Any particular reason you used the diluted hydrochloric acid for the dissolution process instead of the more concentrated one (apart from that being what you had around)? I noticed it from the green label, that is the one that they sell as "low fumes" acid and is about 15%, as opposed to the regular one which is about 35%. Lab jack: <a href="https://scissorliftoutlet.com/wp-content/uploads/2017/01/HFS-New-4-x-4-100mm-Stainless-Steel-Lab-Jack-Scissor-Stand-Platform-LAB-0-1.jpg" rel="nofollow noopener" target="_blank">https://scissorliftoutlet.com/wp-content/uploads/2017/01/HFS-New-4-x-4-100mm-Stainless-Steel-Lab-Jack-Scissor-Stand-Platform-LAB-0-1.jpg</a>

Anonymous

You keep saying hyperchlorate or hypochlorate, it is calcium hypochlorite.

Anonymous

Love the white background for making videos. Very easy to see.

Michael Aichlmayr
>>12385265

And to make matters worse, they charge the same amount for a gallon of that low percent stuff as they did for the 32-35% stuff. Granted diluting it with that dihydrogen monoxide is probably pretty pricy. L***s and HD are switching to that, and dropping the higher strength stuff in all the stores in my area. Found some of the good stuff at A*e, but they are pricier. Time to go back to making my own (bonus, no iron contamination!)...

Anonymous

Wizardry I say!

Anonymous
>>12384298

For your estimates large gold refining companies have a lost % of 0,01%. Good small "garage" size refiners have a lost % of 0,1%. From all procedures, melting, digestion in acids, etc..

Anonymous

Adding excess ClO- to Br- will generate BrO- and perhaps BrO3-. Ideally stoichiometry amount should be added. You can see this when you add excess bleach to NaBr solution, first it will be red, then it will clear again, the bromine has gone to a higher oxidation.

CodysLab
>>12399760

To add the stocimetric amount I had to add an excess. wernt you watching? lol

Anonymous

Cody, I think you're like me in that you're going to just keep fiddling with your gold bars until there's nothing left lol... First it was the waterjet, then it was the foil, now it's re-refining... anyways, another great vid as always

Anonymous

I was interested that you seemed to pay special attention to copper and palladium... are some impurities worse than others?

CodysLab
>>12406325

Yes. silver wouldn't affect it much, copper changes its color, tin makes it brittle, and palladium is also rather valuable.