[Chemical Knowledge]：Properties, uses, upstream and downstream raw materials, storage methods, composition of potassium dihydrogen phosphate

Potassium Dihydrogen Phosphate Properties

Potassium dihydrogen phosphate (chemical formula: KH₂ POwhole), also known as monopotassium phosphate, is an inorganic compound, which is a white crystalline powder or crystal with high solubility. It has a relative molecular mass of 136.09 and a melting point of 253°C. The solubility of potassium dihydrogen phosphate in water is large, and the solubility can reach 220g/L at 100°C. The substance has low hygroscopicity and stable chemical properties, and will not spontaneously ignite or decompose at room temperature.

Potassium dihydrogen phosphate uses

Potassium dihydrogen phosphate is mainly used as a high-quality compound fertilizer in agriculture, providing phosphorus and potassium for plant growth, which can effectively improve the yield and quality of crops, especially suitable for foliar spraying and drip irrigation systems. It is also widely used in the food industry as an acidity regulator and nutritional supplement, which meets the safety standards of food additives. Monopotassium phosphate is used in the pharmaceutical industry to make certain drugs, such as antibacterals and laxatives. In industrial production, it is used as a metal surface treatment agent, corrosion inhibitor and flux in ceramic production.

Potassium dihydrogen phosphate upstream feedstock

The production of potassium dihydrogen phosphate involves a variety of upstream raw materials, the most important of which are phosphate rock and potash salts. Phosphate rock is acidified to produce phosphoric acid, which then reacts with potassium hydroxide or potassium carbonate to produce potassium dihydrogen phosphate. Potassium salts are usually derived from the mining and processing of potassium ores, such as potassium chloride and potassium sulfate. The production process also requires pure water, reactors, crystallizers and other equipment, as well as energy and labor inputs.

Potassium dihydrogen phosphate downstream products

The downstream products of potassium dihydrogen phosphate are widely used in agriculture, food, medicine and industry. For example, in agriculture, it is used as the main component of high-efficiency fertilizers to make various special fertilizer products. In the food industry, potassium dihydrogen phosphate is processed into various food additives. In the field of medicine, it is made into pharmaceutical excipients or directly used in certain pharmaceutical formulations. In industrial production, potassium dihydrogen phosphate is used in the manufacture of corrosion inhibitors and ceramic materials.

Potassium Dihydrogen Phosphate Production Process

The production process of potassium dihydrogen phosphate mainly includes three main steps: neutralization, evaporation and crystallization. Phosphoric acid and potassium hydroxide or potassium carbonate are neutralized under specific conditions to generate potassium dihydrogen phosphate solution. The solution is then concentrated by evaporation to increase the concentration of potassium dihydrogen phosphate. The concentrate is cooled and crystallized to precipitate pure potassium dihydrogen phosphate crystals. The production process requires strict control of reaction conditions and purification steps to ensure high purity and stability of the product.

Potassium Dihydrogen Phosphate Market Demand

The demand for potassium dihydrogen phosphate in the global market is growing steadily, mainly due to the improvement of agricultural production and the continuous development of the food industry. In the field of agriculture, with the growth of global population and the increase of food demand, the demand of potassium dihydrogen phosphate as a high-efficiency fertilizer has increased significantly. In the food industry, the trend towards healthy diets and nutritional supplementation has driven the use of potassium dihydrogen phosphate as a food additive. Demand in the industrial and pharmaceutical sectors is also growing, further driving the expansion of the market.

Potassium Dihydrogen Phosphate Storage Method

Potassium dihydrogen phosphate has good stability, but it is still necessary to pay attention to moisture and moisture during storage. It should be stored in a dry, ventilated warehouse to avoid contact with acidic or alkaline substances. The storage environment should be kept cool, avoid direct sunlight and high temperature. Packaging materials should be used in plastic bags or sealed containers with good moisture resistance to prevent moisture absorption and agglomeration. Potassium dihydrogen phosphate is corrosive to a certain extent. Operators should wear protective gloves and masks when handling to avoid direct contact with skin and inhalation of dust.

Potassium Dihydrogen Phosphate Safety and Environmental Protection

Monopotassium phosphate is considered to be a low-toxic substance with relatively little impact on the environment. During use and storage, relevant safety procedures should be followed to prevent accidental leakage and contamination. Waste disposal should comply with environmental regulations and avoid direct discharge into water or soil. In agricultural application, it should be used scientifically and rationally to avoid environmental pollution caused by excessive fertilization. Strengthen pollution control and waste treatment in the production process to ensure the green and environmental protection of the production process.

Summary

Potassium dihydrogen phosphate, as an important inorganic compound, has a wide range of applications and market demand. Its stable physical and chemical properties, wide range of uses and good safety make it play an important role in agriculture, food, medicine and industry. Through reasonable production process and strict quality control, we can produce high purity and high quality potassium dihydrogen phosphate products. Scientific storage and safe operation methods ensure the safety and environmental protection during its use. With the continuous development of global agriculture and industry, the market prospect of potassium dihydrogen phosphate will be broader.