This product is white waxy solid flakes or granular powder; slightly special smell. This product is soluble in water or ethanol, insoluble in ether. Freezing point The freezing point of this product (Appendix VI D) is 41~46°C. Viscosity Take 25.0g of this product, put it in a 100ml measuring bottle, add water to dissolve and dilute to the mark, shake well, use a Ping's viscometer with a capillary inner diameter of 0.8mm, and the kinematic viscosity at 40°C is 3.0~4.0mm<2> /S.