(1). Potassium hydroxide is widely used in the production of potassium carbonate including KHCO3, potassium soaps,detergents, fine cosmetic, potassium hydrogen phosphate, potassium permanganate, medical intermediate, liquid fertilizers, synthetic rubber, ABS resin, natural rubber emulsion, paper agent, fermentation, cresol, de-sulfuration in petroleum refining, bio-fuel and alkaline battery. (2). Potassium hydroxide can be used as a desiccant, sorbent, used for preparing potassium soap, oxalic acid and various salt, also used in electroplating, carving and so on. (3). Potassium hydroxide can be used for the production of potassium soap,alkaline battery, cosmetics in light industry (such as cream, cream and shampoo). (4). In the dye industry, Potassium hydroxide can be used for the production of vat dyes, such as vat blue RSN, etc.. (5). In the electrochemical industry, Potassium hydroxide can be used for electroplating, engraving, etc.. (6). In the textile industry, Potassium hydroxide can be used for printing and dyeing, bleaching and mercerizing, and used as the main raw material for synthetic fiber, polyester fiber manufacturing. (7). In addition, it is also used in metallurgical heating agent and leather fat, etc.. (8). Potassium hydroxide can be used as analytical reagent, reagent, carbon dioxide and water absorbent, and also used in pharmaceutical industry; (9). Potassium hydroxide can be used as the PH value of acid and alkali neutralization solution. (10). Potassium hydroxide can be used as the basic chemical reagent, carbon dioxide absorbent. saponification agents.