Triphenyl phosphate (TPP) is a colorless crystalline powder with a faint, phenol-like odor. It is very soluble in carbon tetrachloride (Haynes, 2010) and is soluble in most lacquers, solvents, thinners, and oils, as well as in alcohol, benzene, ether, chloroform, and acetone (Lewis, 1996). Hydrolysis of TPP occurs very slowly in acidic or neutral solutions, but occurs rapidly in alkaline solutions (Barnard et al., 1966). It is used as an internal standard in the screening and quantification of agrochemical residues in vegetables and fruits. It is used in plastic processing and molding of plastic flow and performance.
