Bromine

Bromine (Br) is mainly used in fire retardants and fine chemicals. It is a very strong oxidizer (highly reactive substance that readily takes on electrons) and belongs to the same chemical family as chlorine. Elemental bromine is a reddish-brown liquid. It has an irritating effect on the eyes and throat and has a bleaching action. When spilled on the skin it produces painful sores.

Source: GreenFacts

Bromide - Oxidizing agent

Ozone layer depletion