sodium hydroxide as a precipitant?

[jimmyreece]

could sodium hydroxide be used to precipitate pms in a strong AP solution or would it precipitate all metal disolved

 

[lazersteve]

It will take a lot of lye and will not be selective for precious metals. It a really bad idea in my opinion even from a safety standpoint as lye will cause lots of heating which could melt your container if it's plastic.

If you are wanting to recover traces of dissovled pm's use more copper ( like a solid bus bar, not wire) soaking until the solution saturates to a dark chocolate brown color.

Steve

 

[please35]

Hi Every Boby
I am new to this site.

I need help.
My silver powder is bit brownish white I want bright to make how can I make?
regards,
robin

 

[please35]

Dear Lazersteve

I am surprised to see your posts counts 5800 time.
wow
regards,
robin

 

[Anonymous]

Steve is one of the original founding members of this website.
He has his own site that will help you with your silver problem.He also sells a DVD on silver.
http://www.goldrecovery.us/
http://goldrecovery.us/pricing.asp