samuel-a
Well-known member
- Joined
- Oct 7, 2009
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- 2,190
Lou said:If you want to reduce it, caustic soda and formic acid, 65-80*C. It is the best way to reduce palladium from the diammine. It gives a nice, easily filterered open pore precipitate, much like proper hydrazine application with ammonium hexachloroplatinate.
Few months back, i had refined about an ounce of Pd metal, eventually it ended up as palladosamine chloride.
I eventually end up reducing it by putting it in a concentrated NH4Cl solution and boiling it for about 3 hours under reflux. Hard boil, as high the the hot plate could get.
Result was very nice grainy and heavy black, that settles almost like gold powder does.
I have noticed that, around 120-130C decop' starts.
Left over Pd in solution was scavenged by dmg. When i get the chance to do this again, i'll take some pictures.