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Potash fertilizer is one of the three major fertilizers in agriculture. It has obvious effects on increasing yield of most crops. Potassium fertilizer is mainly potassium chloride and potassium sulfate, which is an acidic fertilizer. The amount of potassium chloride is large, suitable for rice, wheat, corn, cotton and other crops, chlorine does not hinder them; potassium sulfate is suitable for cash crops such as hemp, tobacco, sugar cane, grape, sugar beet, tea.
95% of the world's potash products are used as fertilizers and 5% are used in industry. In the chemical industry, about 30 kinds of products consisting of potassium, mainly potassium chloride, potassium hydroxide, potassium sulfate, potassium carbonate, potassium cyanide, potassium permanganate, potassium bromide, potassium iodide and the like. For industrial use, 35% is used in the production of detergents, 25% in the glass and ceramics industries in the form of carbonates and nitrates, 20% in textiles and dyes, 13% in chemicals, and the rest in the canning industry. leather industry, electronics and metallurgical industries. Potassium chlorate, phosphate and nitrate is an important raw material for manufacturing of matches, fireworks, explosives and rocket. Potassium compounds are also useful in printing, batteries, tubes, photographic and other industrial sectors, in addition, the heat treatment for aviation gasoline and steel, aluminum alloy.