Phenol reacts with bromine water in the presence of an oxidizing agent (i.e. FeBr3) to form 2,4,6-tribromophenol. The word equation for this reaction is:

Phenol + Bromine water → 2,4,6-tribromophenol

The chemical equation for this reaction is:

C6H5OH + 3Br2 → C6H2Br3OH