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?
Hi Sam- I inquart and end up with Silver Nitrate that I add HCL to convert it to Silver Chloride- I end up with several buckets of it - What is the best way to fully rinse the Silver Chloride before my converting to metallic silver using the formic acid technique ? I've looked at the larger size table top Buchner Vacuum filters that SP Bel Art makes, pulling a vacuum on it and pouring hot water over it until the run off is clear = but I'm not sure there might be a better way then using one of these- Thank you - Art