Introduction and Application of Phosphoric Acid

Phosphoric acid, also known as orthophosphoric acid, is a common inorganic acid that is non-volatile, not easy to decompose, almost non-oxidizing, and has the general properties of an acid.

Agriculture: Phosphoric acid is a raw material for the production of important phosphorus fertilizers (calcium superphosphate, potassium dihydrogen phosphate, etc.), as well as for the production of feed nutrients (calcium dihydrogen phosphate).

Industry: phosphoric acid is an important chemical raw material, the main role is as follows:

1, treatment of metal surfaces, generate insoluble phosphate film on the metal surface to protect the metal from corrosion.

2、Mixed with nitric acid as a chemical polishing agent, used to improve the surface finish of the metal.

3、Phosphate ester is the raw material for producing detergent and insecticide.

4、Phosphoric acid is the raw material for the production of phosphorus-containing flame retardants. Food: phosphoric acid is one of the food additives, in food as acidulants, yeast nutrients, cola contains phosphoric acid. Phosphate is also an important food additive, can be used as a nutritional enhancer.

Medicine: Phosphoric acid can be used to make phosphorus-containing drugs, such as sodium glycerophosphate.