Hydrazine as best for the best.....

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goldfever007

Active member
Joined
Mar 22, 2018
Messages
39
Dear folks:
I used to use hydrazine hydrate 80% to precipitate my gold from dirty solution, but now i can only find 32% Hydrazine hydrate in my local store.
Can anyone help me and show me how to concentrate the solution from 32% to only 65%...?
Thanks guys
 
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