Triphenyl phosphate

Triphenyl phosphate is the chemical compound with the formula OP(OC6H5)3. This colourless solid is the ester of phosphoric acid and phenol. It is used as a plasticizer and a fire retardant.

Triphenylphosphate is prepared by the reaction of phosphorus oxychloride and phenol in the presence of a base:
 * POCl3 +  3 HOC6H5   →  OP(OC6H5)3  +  3 HCl