Diphenylamine 99.5 purity 25kg in one bag DiphenylamineWhite monoclinic lamellae. Melting point of 53-54 ° C, boiling point 302 ° C, 179 ° C(2.93), the relative density of 1.16 and a flash point of 152 ° C.Soluble in acetone, benzene, carbon tetrachloride and ethyl acetate, soluble in alcohol, ether, acetic acid and petroleum ether, insoluble in water. Diphenylamine