Characters Pure products are white crystals (industrial products are yellow or pink crystals.) have an unpleasant pungent odor.
Melting point:43~44℃
Boiling point:220℃
Relative density:1.2651
Refractive index:1.5579
Flash point:121℃
Solubility Almost insoluble in water, soluble in benzene, ethanol, ether, glycerin, chloroform, fixed oils and volatile oils.