Message:

<p>[QUOTE=&quot;-jeffB, post: 2188423, member: 27832&quot;]Maybe. I think by &quot;exposed&quot; they mean &quot;at four-digit temperatures&quot;.</p><p><br /></p><p>Platinum crucible manufacturers give <a href="http://www.noble.matthey.com/pdfs-uploaded/16%20Platinum%20Labware.pdf" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.noble.matthey.com/pdfs-uploaded/16%20Platinum%20Labware.pdf" rel="nofollow">a long list of things</a> that you shouldn&#039;t <i>melt</i> in a platinum crucible, or place in contact with the crucible when it&#039;s very hot. At room temperature, though, the only thing that&#039;s going to attack it is aqua regia. No way is a simple salt (a halide or cyanide), alkali or sulfur compound going to attack it at anything less than the temperature of a hot fire.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in