Hi to everyone.
I have tried to find a topic with same problem as I have but still after many attempt, problem remains.
I have pins covered silver, palladium and base metal is copper. I treated them with nitric acid and recovered silver with HCL to silver chloride. Now I am tried to cement Pd with copper. I add copper bar to solution but it does not cement the Pd. I tested the solution in testing tube with DMG and I saw yellow salts (as cottage cheese) but after I mixed it well all was gone. Same is with stannous .. it show brown. I cant understand why it is not reacting as it should. Is it active nitric acid in my solution the problem?
Maybe somebody had same problem and can give me a advice.
Regards
Rayn
I have tried to find a topic with same problem as I have but still after many attempt, problem remains.
I have pins covered silver, palladium and base metal is copper. I treated them with nitric acid and recovered silver with HCL to silver chloride. Now I am tried to cement Pd with copper. I add copper bar to solution but it does not cement the Pd. I tested the solution in testing tube with DMG and I saw yellow salts (as cottage cheese) but after I mixed it well all was gone. Same is with stannous .. it show brown. I cant understand why it is not reacting as it should. Is it active nitric acid in my solution the problem?
Maybe somebody had same problem and can give me a advice.
Regards
Rayn