Aqua Regia

[Yash]

Can anybody tell me the aqua regia process in detail? I want to precepitate my gold with hydrazine hydrate.

 

[rich_2137]

Hi
Search the forum and you'll find what you're looking for, there are lots of posts regarding the AR method

Rich

 

[goldsilverpro]

I would search for Harold_V's stuff on aqua regia on karat gold first. We all know how to do it but Harold has it laid out in a way that will always work.

 

[butcher]

Yash, I told you I would help if you would read Hoke's book.

What materials are you working with, give details, of type, and were it comes from and what kind of metals are involved.

I will try and help you to get going in the right direction.

 

[Yash]

actually it is a black powder which
contain gold, silver and copper sulfate.

 

[4nines]

Take a look at Harold v's stuff if you have never worked with AR as hydra-zine is extremely dangerous.
good luck

 

[butcher]

Yash,
Where did these powders come from, ore, or from other metals, what made them into copper sulfate, gold and silver?

Copper sulfate is water soluble in boiling water (as long as it is not copper sulfide from ore), also the materials would need incineration before processing further.

Are the powders dry? What color are they, the more details you give, the better advice you could get.

We need more detail of where this powder came from; also do you know percentages of metals involved.

Before we can recommend any step to take with these powders.