goldandsilver123
Well-known member
- Joined
- Aug 11, 2015
- Messages
- 203
Hello everyone,
I've been waiting to do this for a long time, and finally a company ordered one, a platinum basket for cupellation. I posted the platinum bars at the Platinum, Palladium, Rhodium, Iridium, Osmium, & Ruthenium section.
The cups are removable, everything is made with almost pure platinum (from an old beaten basket, it has 1,5% gold, because the company didn't want to refine further), don't know if a platinum-rhodium alloy would be better, it's only immersed in nitric and has to withstand 900 °C which pure platinum does.
The solder used was 90% Au 10% Pt.
Here are the pictures:
Every bit of platinum: Basket, cups, filings, left overs:
I've been waiting to do this for a long time, and finally a company ordered one, a platinum basket for cupellation. I posted the platinum bars at the Platinum, Palladium, Rhodium, Iridium, Osmium, & Ruthenium section.
The cups are removable, everything is made with almost pure platinum (from an old beaten basket, it has 1,5% gold, because the company didn't want to refine further), don't know if a platinum-rhodium alloy would be better, it's only immersed in nitric and has to withstand 900 °C which pure platinum does.
The solder used was 90% Au 10% Pt.
Here are the pictures:
Every bit of platinum: Basket, cups, filings, left overs: