Enthalpy of formation of aluminium chloride

Abstract

The standard enthalpy of formation of aluminium chloride has been measured by reacting aluminium with chlorine gas in the presence of an excess of liquid chlorine in a glass combustion vessel inside a calorimeter at 298 K. Complete reaction was achieved. The heat of evaporating part of the chlorine into the previously evacuated bulb has been determined in separate experiments. The standard enthalpy of formation of aluminium chloride has been found to be ΔH°_f298, AlCl₃(c)=–168.80 ± 0.16 kcal/mol (–706.25 ± 0.70 kJ/mol).