The simplest route would be to never let it see moisture in the first place.
Make sure all glassware is dried overnight in a 130 deg C oven, and cooled under
vacuum in a dessicator, or assembled hot using a nitrogen or argon stream.  The
transfer of anhydrous AlCl3 should be done in a nitrogen filled glove box or
glove bag.

There are several books on this subject, for example, Shriver's "The
manipulation of air sensitive compounds" 2nd edition.

good luck,

Joe Bozell
Senior Organic Chemist
National Renewable Energy Lab
Golden, CO
USA
_______________________________________________________________________________
Subject: ORGLIST:  AlCl3 anhydrous
From:    barnabas liau [SMTP:barnabas_liau@hotmail.com]  at SMTP
Date:    6/21/98  6:55 PM

Hi everyone,
I wish to start a Friedel Craft rxn and dry AlCl3 anhydrous powder has
to be used .However, when the pellet is in contact with air, it
immediately absorbs water.
Can anyone please tell me how I can completely get red of the moisture?
How would it affect my rxn if I simply ignore the absorbed
moisture?(Does it affect the yield only or it stops the rxn from
happening?)
Please advise.Thank you.

Regards,
Barnabas


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