Aluminum Bromide
Title: Aluminum Bromide
CAS Registry Number: 7727-15-3
Molecular Formula: AlBr3
Molecular Weight: 266.69
Percent Composition: Al 10.12%, Br 89.88%
Literature References: Prepd from aluminum and bromine: Nicholson et al., Inorg. Synth. 3, 30 (1950).
Properties: White to yellowish-red very hygroscopic lumps, mp 97°; bp reported within the range 250-270°; d418 3.205. Fumes strongly in air; combines with water with violence. Keep tightly closed and protect from moisture. Sol in many organic solvents such as benzene, nitrobenzene, toluene, xylene, simple hydrocarbons.
Melting point: mp 97°
Boiling point: bp reported within the range 250-270°
Density: d418 3.205
 
Derivative Type: Hexahydrate
Properties: Colorless to slightly yellow deliquesc crystals. mp 93°; d 2.5. Sol in water, alcohol, ether, carbon disulfide. Keep well closed.
Melting point: mp 93°
Density: d 2.5
 
Use: Anhydrous form as acid catalyst in organic syntheses. It is similar to anhydr AlCl3 but is more reactive and more sol in organic media.

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