[Chemical Knowledge]：The nature, use, upstream and downstream raw materials, storage methods of dipotassium hydrogen phosphate, and how to make fertilizer

Properties of dipotassium hydrogen phosphate

Dipotassium phosphate (Dipotassium Phosphate,K₂ HPOKH) is an inorganic compound that usually exists in the form of white crystals or powder. Its chemical properties are stable, soluble in water, aqueous solution is alkaline, pH value is about 8.5 to 9.5. Dipotassium hydrogen phosphate has good buffering properties and can be used as an effective buffer in chemical reactions. It does not decompose at high temperatures, which makes its application in many industrial processes more widespread.

Use of dipotassium hydrogen phosphate

The application field of dipotassium hydrogen phosphate is very wide, covering agriculture, food, medicine, industry and other industries. In agriculture, dipotassium hydrogen phosphate, as a high-efficiency phosphorus and potassium compound fertilizer, can significantly improve the disease resistance and yield of crops. In the food industry, as a food additive, it is mainly used as an emulsifier, stabilizer and buffer, and is widely used in dairy products, beverages, beer and other products. In the field of medicine, dipotassium phosphate is used in the preparation of some drugs and nutritional supplements to help regulate electrolyte balance in the body. In industrial production, dipotassium hydrogen phosphate is used in the manufacture of detergents, detergents, soaps and other products, with good cleaning and lubricating effects.

Dipotassium hydrogen phosphate upstream and downstream raw materials

The production of dipotassium phosphate involves multiple upstream feedstocks, mainly including phosphoric acid (HZPOH) and potassium hydroxide (KOH). Phosphoric acid is obtained by treating phosphate rock with sulfuric acid, while potassium hydroxide is obtained by electrolysis of potassium chloride (KCl) by the chlor-alkali process. The supply and price of these upstream raw materials directly affect the production cost and market price of dipotassium hydrogen phosphate. On the downstream side, the main consumer markets for dipotassium phosphate include agriculture, food processing, medicine and industrial cleaning. These industries have a large demand for dipotassium hydrogen phosphate and have a high degree of market dependence.

Production process of dipotassium hydrogen phosphate

The production of dipotassium hydrogen phosphate usually adopts neutralization method, that is, phosphoric acid and potassium hydroxide are mixed and reacted according to a certain proportion to generate dipotassium hydrogen phosphate and water. The reaction equation is:
[\text{H} 3\text{PO} 4 2\text{KOH} \rightarrow \text{K} 2\text{HPO} 4 2\text{H}_2\text{O} ]
The process needs to be carried out under strictly controlled temperature and pH conditions to ensure the completion of the reaction and the purity of the product. After completion of the reaction, concentration by evaporation and crystallization, finally pure dipotassium hydrogen phosphate product is obtained. The technology is mature, the production efficiency is high, and the product quality is stable.

Potassium hydrogen phosphate storage method

Dipotassium hydrogen phosphate needs to be stored in a dry and ventilated environment to avoid moisture and exposure to the air, because it is hygroscopic and easy to absorb moisture in the air and agglomerate. The storage container shall be a plastic bucket or composite bag with good sealing performance to prevent the product from moisture and deterioration. Dipotassium hydrogen phosphate should avoid contact with acidic substances, because it will react with acid to form phosphate, which will affect the quality and effect of the product. The storage environment temperature should be controlled within the normal temperature range to avoid the influence of high temperature or low temperature on the product.

Dipotassium Hydrogen Phosphate Market Prospects

With the continuous development of global agriculture, food industry and pharmaceutical industry, the demand for dipotassium hydrogen phosphate is also increasing. Especially in the field of agriculture, with the development of green agriculture and organic agriculture, dipotassium hydrogen phosphate, as an efficient and environmentally friendly fertilizer, has a broad market demand prospect. The demand for high quality and functional food additives in the food industry is also driving the development of the dipotassium phosphate market. The growing demand for electrolyte balancing agents and nutritional supplements in the pharmaceutical sector also provides new market opportunities for dipotassium hydrogen phosphate.

Dipotassium hydrogen phosphate competitive landscape

In the global dipotassium hydrogen phosphate market, major manufacturers include Sinochem Group, Dow Chemical, ICL Group, etc. These companies have strong R & D and production capabilities and can provide high-quality products. Enterprises in some emerging market countries are also gradually expanding their production capacity and market share. With the intensification of market competition, major companies continue to improve product quality and production efficiency through technological innovation and production optimization to consolidate their market position.

Environmental Impact and Sustainable Development

The production and use of dipotassium hydrogen phosphate has relatively little impact on the environment, but in the production process, attention should be paid to reducing waste water and waste gas emissions, reducing energy consumption, and adopting clean production technology to achieve sustainable development. In agricultural applications, it is also very important to use dipotassium phosphate rationally, avoid excessive application, and prevent soil and water pollution.

Conclusion

As an important inorganic compound, dipotassium hydrogen phosphate has stable chemical properties and a wide range of applications. Dipotassium phosphate plays an important role in agriculture, food, medicine and industry. Its production process is mature, the supply of upstream and downstream raw materials is stable, and the market demand continues to grow, which has good development prospects. In the process of production and use, it is necessary to pay attention to environmental protection and sustainable development to ensure that its impact on the environment is minimized. In general, dipotassium hydrogen phosphate is an important chemical product with broad market prospects and development potential.