Useful temperature range for platinum 1

[dcopps]

Knowing that platinum will break down and oxidize before it actually melts, I am seeking to find a reliable resource that would tell me the useful temperature range for platinum.

 

[CoryPad]

ASM Handbook Volume 2 Properties and Selection: Nonferrous Alloys and Special-Purpose Materials:

"Platinum has exceptional resistance to oxidation. Upon heating in air at all temperatures to the melting point, it remains untarnished. At temperatures above about 750 °C, slight weight loss occurs due to volatilization of the metal itself and the formation of a volatile oxide of platinum. This oxide is essentially PtO₂, although the presence of both PtO₂ and PtO has been noted; mass spectrometric techniques indicate that the main oxide molecules are PtO₂ and PtO₃. As higher temperatures are reached, loss to volatilization of the oxide species becomes greater than that of the metal."

This is just a start. You can see a graph of mass loss in this Handbook, available here:

http://www.asminternational.org

Regards,

Cory

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