dmg

[arthur kierski]

how many grams of dmg is needed to precipitate 1gram of pd? i read somewhere that one gram of dmg gives 1gram of pd----could someone in the forum give me an answer?
thanks for some information and regards
Arthur
ps: here in Brazil,100grams of dmg costs 32 dollars

 

[Moo]

I believe one of the very talented members here mentions the use of DMG in solution on his website
http://www.goldnscrap.com/index.php?option=com_content&view=article&id=88:silver-refining-first-stage-pt-1&catid=39:scrap-silver&Itemid=51

hope that helps.

 

[Sucho]

DMG molar mass - 116,12 g . mol -1
Pd atomic weight - 106,42

Pd(DMGH)2 - 2 molecules of DMG , one Pd atom - chelate

(116,12 x 2 ) / 106,42 = 2,1823 g of DMG needed to precipitate 1 g of Pd


you have to adjust pH to cca 4 for complete Pd drop.if it is too acidic, it will not drop completely.also if your pH value reaches 6 Ni will start to coprecipitate.

 

[arthur kierski]

thanks Sucho-----you were very helpfull
regards
Arthur