Potash mines are mainly used to make industrial potassium compounds and potash fertilizers. 95% of the world's potash products are used as fertilizers and 5% are used in industry. In the chemical industry there are about 30 kinds of products composed of potassium, mainly potassium chloride, potassium hydroxide, potassium sulfate, potassium carbonate, potassium cyanide, potassium permanganate, potassium bromide, potassium iodide and so on. According to industrial use, 35% is used in the production of cleaning agents, 25% is used in the form of carbonate and nitrate in the glass and ceramic industry, 20% is used in textile and dyeing, and 13% is used in the production of chemical drugs. The rest is used in the canning industry, leather industry, electrical and metallurgical industries. Chlorates, superphosphates and nitrates of potassium are important raw materials for the manufacture of matches, fireworks, explosives and rockets. Potassium compounds are also used in printing, batteries, electronic tubes, photographic and other industrial sectors, in addition to aviation gasoline and heat treatment of steel and aluminum alloys. Potassium fertilizer is one of the three major fertilizers in agriculture, and has obvious yield-enhancing effects on the vast majority of crops. Potassium fertilizer is mainly potassium chloride and potassium sulfate, which are acidic fertilizers. Potassium chloride is used in large quantities, suitable for rice, wheat, corn, cotton and other crops, chlorine is not harmful to them. Potassium sulfate is suitable for hemp, tobacco, sugar cane, grapes, sugar beet, tea and other cash crops.