HCL/CL fail

[icsteletre]

Hi together!!
I'm from Malaysia and this is my first post since i have read a lot of
valueable information here.Thanks to lazersteve video and members here.

This is my first experiment:

Method: AP
Acid:Hydroklorik 37% , Peroxide 3% and clorox 5.25% sodium hypochlorite


600g trimmed fingers from HP Server Board
filled in a drill hole bucket like steve video,
The drill bucket put in a large bucket
Then i put 2 liter HCL and 1 liter Peroxide
The foils stripped nicely after 4-5 days..
Wash foils for several rinse with HCL and Hot Water

What is happen here, when i process foils with HCL/CL,it turn to light/ green,green color.
Its look like im stuck here,So i save the solution in safety place for later process.
I do not have Stannous on hand,because hard to find in my area.

Any advice would be great and thanks again.


Izam

 

[philddreamer]

It seems you still have some copper in the solution.
Evaporate the chlorine; add 2 times water, then SMB.
From 600g of fingers I think you can expect 2 or 3 g of gold, so add about 4 g of SMB. If you don't have SMB, cement the gold with some clean copper.

IAfter you precipitate or cement, save the solution until you have Stannous.

Phil

 

[icsteletre]

Phil,Thanks for your advice