shruli
Active member
I 'm hoping someone can help as I have a dilemma processing some electrum.
I had a 120 grams of approximately 80% gold 20% silver. I melted & poured it to shot, put in outside in this rare UK nice weather, on heat in poor mans AR.
Started very well but then all the shot develops what appears to be an impregnable layer of silver & any reaction stops. I melted, poured & started again in fresh solution. Same thing but reaction stopped quicker. Thinking it might help I started again & added some 24ct gold to the solution. The gold reacted as expected but the electrum again coated itself in a protective layer of silver and stopped!
I have searched the forum & can't find a solution, so any suggestions will be appreciated. I am in the UK where nitric & sulphuric acid are not an option.
I have added a pic which looking closely shows the 24ct gold slowly bubbling away & the grey to the left doing nothing. Each time I start again the reaction slows down further as the percentage of silver goes up.
Many thanks
Keith
I had a 120 grams of approximately 80% gold 20% silver. I melted & poured it to shot, put in outside in this rare UK nice weather, on heat in poor mans AR.
Started very well but then all the shot develops what appears to be an impregnable layer of silver & any reaction stops. I melted, poured & started again in fresh solution. Same thing but reaction stopped quicker. Thinking it might help I started again & added some 24ct gold to the solution. The gold reacted as expected but the electrum again coated itself in a protective layer of silver and stopped!
I have searched the forum & can't find a solution, so any suggestions will be appreciated. I am in the UK where nitric & sulphuric acid are not an option.
I have added a pic which looking closely shows the 24ct gold slowly bubbling away & the grey to the left doing nothing. Each time I start again the reaction slows down further as the percentage of silver goes up.
Many thanks
Keith