Re: aluminum oxide

[GLewis4457@domain.elided]

In a message dated 10/13/2002 10:02:30 AM Central Daylight Time, 
owner-alfa-digest@domain.elided writes:

> Aluminum oxide is what protects aluminum from corrosion,  because it is 
> very inert.  As an oxide,
> it's already "burnt".  If you melt it down under great heat,  it makes a 
> glassy materiel known as
> Sapphire...
> 
Kinda...BUT powdered aluminum oxide is also a major component of solid rocket 
fuel, such as in the solid rocket boosters used on the shuttle.

Jerry in Houston
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