Question

What happens if I have made a solution of hydrochloric acid and nitric acid to form aqua regia and use it to break down my gold foils and then by mistake use lye drain cleaner instead of sulfamic acid to denox my solution. How do I save my gold foils.

Answer 1

you can save your gold foils by collecting the gold hydroxide(brown ppt) and turn it into gold by heating and melting you can also add sodium cyanide to make gold cyanide as an electroplating solution