Nomenclature
CAS number: 7446-70-0
AlCl
3; mol wt 133.34.
Al 20.24%, Cl 79.77%.
Description and references
Prepd from aluminum metal in a heated stream
of HCl gas: Gattermann-Wieland, Praxis des
Organischen Chemikers (de Gruyter, Berlin, 40th ed., 1961)
p 295; H. J. Becher in Handbook of Preparative
Inorganic Chemistry vol. 1, G. Brauer, Ed.
(Academic Press, New York, 2nd ed., 1963) p 812. Manufacture: Faith, Keyes & Clark's Industrial Chemicals, F. A. Lowenheim, M. K. Moran, Eds. (Wiley-Interscience, New York,
4th ed., 1975) pp 72-75. Monograph: ACS
Monograph Series no. 87, entitled “Anhydrous
Aluminum Chloride in Organic Chemistry,” C. A. Thomas, Ed. (Reinhold,
New York, 1941).
Properties
White when pure; ordinarily gray or yellow to
greenish deliquescent, crystalline powder. Practically odorless and
has a sweet, very astringent taste. Fumes in air; strong odor of
HCl; when heated in small quantities volatilizes without melting.
Corrosive. Keep tightly closed and protected
from moisture. Combines with water with explosive violence
and liberation of much heat. Very sol in water; freely sol in many
organic solvents, such as alcohol, benzophenone, benzene nitrobenzene,
carbon tetrachloride, chloroform. Sol in glycerin. For physical
properties see C. A. Thomas, loc. cit.Derivative
Hexahydrate.
Nomenclature
CAS number: 7784-13-6
Anhydrol (Dermal); Driclor (Stiefel); Drysol (Person & Covey); Xerac (Person & Covey).
Properties
Colorless crystals, or white or slightly yellow
deliquesc, cryst powder; odorless or slight HCl odor. One gram dissolves
in 0.9 ml water, 4 ml alc; sol in ether, glycerol, propylene glycol.
Keep well closed.Caution
Direct contact with anhydrous form may cause skin, eye and respiratory system irritation; may
cause severe eye and skin burns.Use
The
anhydrous form suitable as an acid
catalyst, esp in Friedel-Crafts type reactions; in cracking of petroleum;
in manuf rubbers, lubricants. The
hexahydrate form used
in preserving wood; disinfecting stables, slaughterhouses, etc.; in
deodorants and antiperspirant preparations; refining crude oil; dyeing
fabrics; manuf parchment paper.
Therapeutic Category
The hexahydrate as anhidrotic.
Keywords
Astringent