On Thu, 04 Dec 2008 00:57:41 -0500, Wayne.B
wrote:

On Wed, 3 Dec 2008 21:15:50 -0800, "CalifBill"
wrote:

If you heat aluminum in the presence of oxygen in first melts and then
begins to do something which closely resembles burning at very high
temperatures. After glowing red very brightly, it turns into a
powdery ash within seconds.

I'd call it burning, purists may not.


It might be burning, but will it support combustion like wood or magnesium?

In the presence of the right oxidizers it absolutely will.

The thermite reaction for example which will burn through almost
anything:

2Al(solid) + Fe2O3(solid) ---- 2 Fe + Al2O3

or as rocket fuel:

6 NH4ClO4 (oxidant) + 10 Al = 5 Al2O3 + 6 HCl + 3N2 + 9 H2O

http://www.aerospaceweb.org/question...on/q0246.shtml

More he

http://oai.dtic.mil/oai/oai?&verb=ge...er =ADA425147

Did you ever see that Mythbusters episode where they tested the theory
that the Hindenberg was actually painted in a type of thermite and
that's what caused the devastating fire?

They pretty much proved it could have happened that way.
--

Happy Holidays and Merry Whatever It Is
That ****es Liberals Off.