I’ve recycled old ram trimmings to recover 2.5g of gold for use in my fiancée’s engagement ring (wasn’t enough for the whole ring, but it’s the thought that counts.
If you do it right, the only byproducts are salt, carbon dioxide, oxygen, and water.
Copper (II) chloride dissolves the copper and makes Copper (I) chloride. Mix with sulfuric acid and get CuSO4 and HCl. CuSO4 can have the copper plated out of it and get more sulfuric acid, and HCl can be mixed with Copper (I) chloride to recycle back into copper (II) chloride.
So you’re left with gold and other bits. You can dissolve the gold in a mixture of nitric and Hydrochloric acid to get chloroauric acid. Wash with water and you now have a beaker of gold in solution that looks like an alcoholic’s piss.
Then bubble in sulfur dioxide and you get gold, Hydrochloric acidic and sulfuric acid.
So if you play it right, it’s infinitely recyclable. You just need electricity and heat to keep recovering the waste materials.
The problem I mostly ran into was ending up with a shitload of HCl. The store bought stuff is 30%, but the best you can recover through distillation is 20%. It takes a LOT of baking powder to neutralize it.
The most dangerous is probably the sulfuric and nitric acid. Sulfuric acid has earned its nickname “oil of vitriol.” 99% sulfuric will burn through paper in seconds. Skin and paper have a lot in common. Didn’t play much with the nitric acid, but I’ve heard it’s angry. You really only need a small amount to help the hydrochloric acid dissolve the gold. Also sulfur dioxide is hella nasty smelling.
Nitric acid is the single hardest ingredient to get. I found a seller on eBay. I think you can make nitric acid with store bought chemicals though, but I never had to do that.
Other ingredients:
Hydrochloric acid - sold as concrete cleaner Sulfuric acid - sold (diluted) as battery acid. Easy to concentrate with a condenser. Unlike HCl, you can get like 99% purity through distillation. Copper Chloride - Drop some copper into a bath of hydrochloric acid and hydrogen peroxide Sulfur Dioxide - Mix sodium metabisulfite with an acid. Sodium metabisulfite is commercially used in some food/beverage preservatives. I bought a bag of it of amazon that was marketed towards brewers. SO
I need to survive for 3 days without pooping, and eating as little as possible. I can pee, but not very often. It can't take up too much space. What food do I pack?
Please don't ask why I need this....
What's a true fact that is so misleading it's borderline misinformation?
What would be some fact that, while true, could be told in a context or way that is misinfomating or make the other person draw incorrect conclusions?
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Nanobot Carry Lazy Sperm to Fertilize Living Eggs (youtube.com)
[BBC] Recycling: The gold jewellery made from old phones (www.bbc.com)
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