The most well-known use of bromine, is in making photographic films. Silver bromide is light-sensitive and is used to manufacture photography plates. Its microscopic particles when exposed to light, undergo a change as a result of chemical reaction.romine is a bleaching agent, and is used to disinfect water in cooling towers and the swimming pools. In this case, bromine test strips are used to detect phenols and unsaturated double bond compounds as well as alkalinity, pH and hardness of water.