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Author: Subject: Al + HCI = ?
SolidSnake
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[*] posted on 16-11-2005 at 18:28
Al + HCI = ?


What compounds are created as a result of the mixture of aluminum and hydrochloric acid?
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Darkblade48
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[*] posted on 16-11-2005 at 19:02


Quote:
Originally posted by SolidSnake
What compounds are created as a result of the mixture of aluminum and hydrochloric acid?


Have you even tried looking?
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Tsu2
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[*] posted on 16-11-2005 at 20:41


Well, if I am correct...

2Al + 6HCl -> 3H2 + 2AlCl3

Here are some pages on Aluminum Chloride

Here
... and here.

Guess I was wrong. ;)

[Edited on 17-11-2005 by Tsu2]
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BASF
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[*] posted on 17-11-2005 at 08:19


If it was as easy as that :(

I think the oxychloride forms.
The oxychloride is widely used in deodarants...
(AlOCl2*xH2O)
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12AX7
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[*] posted on 17-11-2005 at 09:27


IIRC, Al + 3HCl(anh.) = AlCl3 + 1.5 H2
Any water present is absorbed, giving hydrous product:
Al + 3HCl + 6H2O = H6Al(OH)6Cl3 + 1.5 H2 (which is a cumbersome way of writing AlCl3.6H2O.)

AlOCl doesn't form that I know of. AlCl3.6H2O pyrolyzes, AlCl3 sublimates and dissociates in various ways, and Al(OH)3 precipitates from solution when base is added (then dissolves in excess base).

Tim




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