What temperature does this sublimation process occur at?
On Wed, Mar 19, 2014 at 9:51 PM, <mix...@bigpond.com> wrote: > In reply to Axil Axil's message of Mon, 17 Mar 2014 23:10:37 -0400: > Hi, > [snip] > >Why is a HHO flame able to vaporize tungsten and yet will not burn the > skin > >of your hand. > > Tungsten does not vaporize. It doesn't even melt. Instead, it oxidizes in > the > flame, and the oxide sublimates. I have seen this first hand. > When a piece of copper metal (e.g. copper pipe) is placed in the flame, the > copper melts and a droplet of molten copper will hang from the end. > With a tungsten rod, there is no droplet. > > Note in the video that there no droplets of molten tungsten fall onto the > plate > below. > Regards, > > Robin van Spaandonk > > http://rvanspaa.freehostia.com/project.html > >
