... brown to dark brown granules or flakesAssay, % min (Area normalization method)96.0Crystallizing Point, °C min46.0Melting point,°C,min0.5Ash ... temperature exceeds 35-40°C.Soluble in gasline, benzene, acetone, ethyl acetate, dichloroethane, carbon tetrachloride ,methylbenzene, ethylalcohol and other organic solvents ...