Phenylenediamine is also called PPD Pure white, 99.9% min Melting point: 140°C Boiling point: 267°C Widely used for dyeing productions, packing in 50kg paper and iron drums, 14MT in 20-inch FCL. Series products Para nitroaniline, Ortho nitroaniline, Ortho pheny lenediamino, 1,2,3-Benzotriazole;