In reply to Axil Axil's message of Wed, 19 Mar 2014 22:43:10 -0400: Hi, [snip] >What temperature does this sublimation process occur at?
WO3 sublimates at 550 ºC in air. > > >On Wed, Mar 19, 2014 at 9:51 PM, <[email protected]> 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 >> >> Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
