Potassium hydroxide, is a kind of inorganic compound, chemical formula KOH, melting point 361, boiling point 1320, potassium hydroxide commonly known as caustic potassium, potassium ash, etc., industrial products are mainly in two forms, respectively solid and liquid, of which solid is white or light gray sheet, block rod, chemical properties and sodium hydroxide similar, has a strong alkaline and corrosive, Easily soluble in water and will release a lot of heat, and delixing, easy to absorb moisture in the air and delixing, absorb carbon dioxide into potassium carbonate. Mainly used in leather, paper, printing and dyeing, sewage treatment and other fields; Food grade potassium hydroxide is mainly used in pharmaceutical intermediates, various potassium salts, food additive ingredients, food processing containers cleaning, disinfection and other fields.