Palladium
- Thread starter Wonka
- Start date
Help Support Gold Refining Forum:
Martijn
Well-known member
That sounds like copper traces being oxidized, palladium should not turn black after melting? it's a very precious metal. they do not oxidize.
When I had red and black stains in the borax glazed crucible, it was with melting copper or sterling.
When I had red and black stains in the borax glazed crucible, it was with melting copper or sterling.
Copper sweats? It pulled moisture from the atmosphere for like 3 days. Then turned black and became very brittle.
I should also mention that it wouldn’t pool all the way even at 1500C.
Martijn
Well-known member
Palladium melts at around 1550C if i'm correct. So 1500 may have been insufficient.
I would alloy with silver as i can't reach such high temperatures.
again, that does not sound like pure palladium, but some contaminants along with it. (which could have lowered the melting temp. of the alloy, like silver does)
I would alloy with silver as i can't reach such high temperatures.
again, that does not sound like pure palladium, but some contaminants along with it. (which could have lowered the melting temp. of the alloy, like silver does)
Martijn
Well-known member
is it fully converted Pd or are there traces of Pd salt left?
How did you get this Pd and how was it treated.
One never melts salts, just metal or salts converted to metal!
So why do you think you have Pd from processors?
The only thing that could have Pd would be the MLCCs, and those should have been removed first.
Either by HCl, heat or mechanical.
