Captobvious
Well-known member
Ok so last night I finally had time to work on this some more, and successfully put my foils into solution (using HCL + CL (standard unscented Clorox) approximately 2 cups HCL and 3/4 cup Clorox) that I had recovered from fingers, etc with AP in this thread http://goldrefiningforum.com/~goldrefi/phpBB3/viewtopic.php?f=37&t=17416. Positive Stannous test for gold and preparing to dilute and drop the gold out with SMB. (see pic)
Now as for my question, I cannot detect the scent of Chlorine gas but I'm not certain it's all gone yet. It was originally at the 700ml level on the beaker in the pic (-edit- before heating and evaporation I let the reaction work for a good 30 mins or so until Chlorine gas stopped off-gassing) and evaporated it down to just over 600ml (to drive off any remaining Chlorine), let it sit in place to cool down gradually and once cooled it sat at just below 600ml. Is there an easy ph test I can do to check if the Chlorine is fully out of solution before I aggravate myself by attempting the gold drop and having it fail from Chlorine being still present?
Now as for my question, I cannot detect the scent of Chlorine gas but I'm not certain it's all gone yet. It was originally at the 700ml level on the beaker in the pic (-edit- before heating and evaporation I let the reaction work for a good 30 mins or so until Chlorine gas stopped off-gassing) and evaporated it down to just over 600ml (to drive off any remaining Chlorine), let it sit in place to cool down gradually and once cooled it sat at just below 600ml. Is there an easy ph test I can do to check if the Chlorine is fully out of solution before I aggravate myself by attempting the gold drop and having it fail from Chlorine being still present?