DANGEROUSLY Reactive

The reaction between aluminum (Al) and bromine (Br2) releases approximately 577 kJ per mole of aluminum reacted, making it highly exothermic. In this reaction, aluminum atoms donate electrons to bromine molecules, producing aluminum bromide (AlBr3).

This substantial release of energy can raise the local temperature significantly, often above 1000°C (1832°F), enough to ignite aluminum and vaporize bromine. The precise temperature achieved depends on factors such as the amounts of reactants and the reaction’s containment.

The rapid energy release and high temperatures make this reaction both visually striking and dangerous, requiring careful handling.