Jan 20, 2022
In PGM Refining
Hi, I precipitated Pt and Pd from aqua regia using Ammonium Chloride. I then had PGM powder(32%Pt, 1.5%Au, 1%Pd, 50%Fe, and some base metals). When I burn this powder using a toch, the powder just burns away without forming a button. Also never used Borax. What am I doing wrong?