Uses of phosphoric acid

　In addition to being used to produce high-concentration phosphate fertilizers and compound fertilizers, phosphoric acid is also the raw material for various phosphates and phosphate esters used in soaps, detergents, metal surface treatment agents, food additives, feed additives and water treatment agents.

It is widely used in food, detergents, metallurgy, water treatment, building materials, medicine, feed and petrochemical industry. The most important thing is to make various phosphates, and phosphates mainly have the following functions: 1. Phosphoric acid is mainly used as chemical fertilizer, and phosphate is used to make phosphate fertilizer and is widely used. The role of phosphate fertilizer: promotes the development of crop root systems and enhances cold and drought resistance; promotes early maturity of crops, increases the number of ears, and plumps the grains. Such as single phosphate fertilizers such as superphosphate, double superphosphate, phosphate rock powder, ammonium phosphate compound phosphate fertilizers, and sprayed potassium dihydrogen phosphate phosphate fertilizers ； Na3PO4 is a commonly used detergent and boiler anti-scaling agent ； Other uses include dihydrogen salt for baking powder and the use of phosphate rock, coke, and quartz to produce white phosphorus at high temperatures. 2. Phosphorus is an important mineral element necessary for the human body. The main source of phosphorus ingested by the human body is natural food or food phosphate additives. Phosphate is one of the natural ingredients of almost all foods. Because phosphate can improve or impart a series of excellent properties to food, it began to be used in food processing more than a hundred years ago, and was widely used after the 1970s. At present, phosphate is one of the most widely used and used food additive categories. As an important food ingredient and functional additive, it is widely used in the processing of meat products, poultry products, seafood, fruits, vegetables, dairy products, baked products, beverages, potato products, seasonings, convenience foods, etc. 3. Adding phosphate to synthetic laundry detergent can soften water. The phosphate in laundry detergent accounts for almost half of the phosphate content in civil wastewater. However, the phosphates in the detergents cause a large amount of phosphorus-containing substances to enter the river, causing the eutrophication of the river to intensify, causing overgrowth of plants in the water and lack of oxygen in the water, seriously affecting the safety of the river and water sources. a lot of * * The addition of phosphates to laundry detergent has been banned.

It can be used directly or used to produce phosphate products.

Industrial grade phosphoric acid is used as the main raw material and auxiliary raw material for electroplating, water treatment, phosphating treatment, synthetic detergents, glass, rust coatings, refractory materials, phosphate series products, phosphate fertilizers, etc. in: First-class products are mainly used as polishing agents in the electroplating industry. ； High-quality products are mainly used as important additives for capacitor electrolytes. Food-grade phosphoric acid is mainly used as a food fermentation agent, an important additive in toothpaste, animal auxiliary feed, etc. It is directly used in beverages as a sourness regulator, and is widely used as an indispensable reaction aid in oils, MSG, sugar and other foods and related products. Chemical fiber grade phosphoric acid is used as an important reaction aid in organic synthesis. Reagent-grade phosphoric acid can be directly used as chemical reagents of various specifications such as chemical purity, analytical purity, and superior purity. Electronic-grade phosphoric acid is used for wet cleaning of substrates before gluing. That is, silicon wafers are often contaminated by different impurities during processing. Various contaminations can cause IC yield to drop by about 50%. In order to obtain high-quality, high-yield integrated circuit chips, various contaminants must be removed. 　　The second is used for wet etching and final degumming in the photolithography process, which refers to the process of removing solid matter from the surface of the silicon wafer by means of chemical reactions. It can occur on the entire silicon wafer surface or on parts of the surface that are not protected by the mask, resulting in total or partial dissolution of the solid surface. 　　The third is used for cleaning during the manufacturing process of the silicon wafer itself. In addition, it is used as ultra-high-purity reagents and raw materials for optical fiber glass. Electronic grade phosphoric acid is mainly used in the production process of ultra-thin high-definition LCD TVs

In addition to being used as a raw material for the production of compound fertilizer, phosphoric acid can also replace wrapped oil and play a slow-release role! Very few people know.

Most uses have been mentioned above, but what about the functions of medical grade phosphoric acid?

Uses of phosphoric acid: Mainly used in phosphate industry, electroplating, polishing industry, sugar industry, compound fertilizer, etc.

In the phosphoric acid production process, the extraction process is mainly used to prepare phosphoric acid for what purposes?

In wet phosphoric acid production, the extraction process is mainly used to prepare industrial-grade phosphoric acid, food-grade phosphoric acid, and electronic-grade phosphoric acid.