Potassium chloride is mainly used in inorganic industry and is the basic raw material for producing all kinds of potassium salts or bases, such as potassium hydroxide, potassium sulfate, potassium nitrate, potassium chlorate, potassium alum and so on. The pharmaceutical industry is used as a diuretic and a drug for the prevention and treatment of potassium deficiency. The dye industry is used to produce G salt, reactive dyes and so on. Agriculture is a kind of potash fertilizer. Its fertilizer effect is fast, and it can be directly applied to farmland, which can increase the moisture in the lower layer of soil and has the effect of drought resistance, but it is not suitable to be applied in saline-alkali soil and to tobacco, sweet potato, sugar beet and other crops. Potassium chloride is similar to sodium chloride in taste (bitter) and is also used as an additive for low sodium salt or mineral water. In addition, it is also used in the manufacture of muzzle or gun flame suppressant, steel heat treatment agent, and photography. It can also be used in medicine, scientific applications, food processing, salt can also be partially replaced by potassium chloride sodium chloride, in order to reduce the possibility of high blood pressure. Electroplating grade potassium chloride contains lemon complex, which makes the coating fine and glossy, which can improve the uniformity and depth ability of the plating bath, improve the surface quality of the plating parts, improve the conductivity of the plating bath, promote and accelerate the precipitation rate of zinc ion; the chloride ion content of this product is generally higher than that of ordinary potassium chloride, which can improve the dispersion and leveling ability of the plating bath. When the temperature is too high or too low, there is no crystallization precipitation bath with good stability, long service cycle and continuous production, and at the same time, reducing power consumption and shortening the production cycle can improve the comprehensive economic benefits of the enterprise.