Platinum XLS

Platinum XLS

This is "Platinum XLS" which is purified by the sublimation method.  Some might own platinum jewelry since it is a precious metal, an element on the Periodic Table.

Sublimation

The above diagram is shared by the courtesy of Lisa Nichols and Butte Community College.  Credit
I hope that I have handled this properly.  

As I understand from the diagram above, you have two vessals, in this case test tubes.  One is inside the other and open to outside air and called the cold finger.  It has a stopper surrounding its neck with goes inside the outer tube.  The outer tube is vented to a source of air pressure change since we will want to manipulate that during the process.  Heat is applied to the outside of the outer tube.  The substance to be sublimed is in the bottom of the outside tube.  It is heated to a temperature at which it will sublime.  This means that the platinum will vaporize leaving the impurities behind.  It attaches itself to the ouside of the, cooler, inside tube. 

I think I've said enough for today.  I'll try to make it clearer next time and show you more of my platinum sample.