... flakesAssay, % min (Area normalization method)96.0Crystallizing Point, °C min46.0Melting point,°C,min0.5Ash content,%,max0.1Properties: Pure 6PPD is white ... , and will slowly caking When the temperature exceeds 35-40°C.Soluble in gasline, benzene, acetone, ethyl acetate, dichloroethane, carbon tetrachloride ...