Heat of Formation of Aluminum Bromide,

The standard heat of formation of crystalline aluminium tribromide at 25C has been measured calorimetrically by reacting aluminium with liquid bromine in a glass combustion vessel. Separate measurements were made of the heat of solution of aluminium tribromide in bromine. A small correction to the experimental heat was made to account for the evaporation of bromine into the originally evacuated part of the vessel using published data. It amounted to approximately 0.06 percent. The heat of solution of aluminium bromide in bromine was also found. Author