Glacial acetic acid is the most important one of organic acid. It is mainly used for vinyl acetate, acetic anhydride, acetate fiber, acetate and metal acetic acid salt etc, also used as pesticide, medicine and dye, and other industrial solvents and raw materials, in photography, fabric dyeing and drug manufacturing rubber industry have extensive use. Acetate, widely used in synthetic fiber, coating, medicine, pesticide, food additive, dyeing industry etc.