cyanide leaching

[arthur kierski]

i leached powdered cpu ceramics with cyanide(sodium)--question?could i precipitate the leached solution with hydrazine or must use zinc powder after adding naoh to the leached solution?-----

 

[goldsilverpro]

Bring pH to at least 12 with NaOH. Precipitate Au with zinc dust in about a 1 to 1 ratio.

 

[arthur kierski]

thanks for the reply----i will do what you told me tomorrow and then post the results------

 

[Juan Manuel Arcos Frank]

Arthur:
We want you to stay with us for many years,your life is in risk,cyanide is dangerous,here are some articles that you should read.
Have a nice day.
Manuel

 

[Juan Manuel Arcos Frank]

here is the other one:
www.shorinternational.com/cyanodestruct.htm