Purifying A Gold Bath
Q: How can I purify an acid gold bath? S.S.
A: I would not recommend that you attempt to purify the bath. Yes, it can be done by treating the contaminated bath with different chemicals but given the current price of gold, the time and effort and the unavoidable loss of gold in the processing, I think it would make more sense to send the contaminated solution back to your supplier or refiner to reclaim the gold value of the bath.
Our expert, Art Kushner, says yes, you can color stainless steel, but it is not a process that is typically performed in a plating shop. Read more about his answer.
The processes, chemicals and equipment, plus control and troubleshooting.
An alternative product for passivation...