It does work. to one troy ounce palladium coin is added 100ml nitric acid and 300ml HCl. Stirred occasionally with a glass rod, covered with parafilm. When fizzing stops, decant supernatant, brown chunk o' Pd will be at bottom of beaker. Add 100ml nitric and 300ml hydrochloric acid again. Once fizzing stops, decant. If any solids are left, which a few flakes will probably beeeee, add a little bit more aqua regia. Combine supernatants evaporated with occasional stirring and glass boiling beads. Once all liquid is evaporated, red-brown solid is left on hot plate for about .5hrs. Glass beads are removed and solid is powdered in mortar and pestle. Yield is always around 55-56g.
The author sounds pretty sincere at the bottom
You can doubt me all you want. I could really give a rat's ass if one takes this as credible or not. As long as it works for me. But wait, I thought this was a collective site of credible info.
I don't want to doubt you, I want to believe you, as the other ratios you posted sound pretty common. Can someone verify the pd->pdcl2 method described above?
Thanx,
BlingBling