Gold.refinery
Well-known member
Hi
Stars on the surface on Gold bars after Refining!!!
After refining operation by AR method, our purity was 999.6 gold and 0.4 copper.
We added some silver for 995.
After the final melting, a number of stars were found on the surface of the gold bar.
What is this problem about?
what's the solution?
Stars on the surface on Gold bars after Refining!!!
After refining operation by AR method, our purity was 999.6 gold and 0.4 copper.
We added some silver for 995.
After the final melting, a number of stars were found on the surface of the gold bar.
What is this problem about?
what's the solution?