[NewCandle] BG and electrolysis

[Robin van Spaandonk]

In reply to  Jones Beene's message of Thu, 3 Aug 2006 12:03:11
-0700:
Hi,
[snip]
>But the presence of that oxidizer is why BG will melt W in the 
>famous demo, whereas a oxy-acetylene will not, and is preferred by 
>many welders.
[snip]
BG does not *melt* tungsten. I have seen this with my own eyes
using a device under my own control. What it does do, is sublimate
the surface oxide coating. When doing this experiment, you will
note that there is no droplet of molten metal on the tungsten rod,
it just tapers down to a point. However when using copper iso
tungsten, there is a very apparent droplet of molten metal
suspended from the tip of the copper by the surface tension.

Regards,

Robin van Spaandonk

http://users.bigpond.net.au/rvanspaa/

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