Cas: 7664-38-2 phosphoric acid powder
| product name |
phosphoric acid |
| cas number |
7664-38-2 |
| apperance |
White crystal powder |
| Density |
2.2±0.1 g/cm3 |
| MF |
H3O4P |
| MW |
97.995 |
Phosphoric acid or orthophosphoric acid is a common inorganic acid. It is a medium-strong acid with a chemical formula of H3PO4 and a molecular weight of 97.994. It is not easy to volatilize, not easy to decompose, and almost non-oxidizing. It has acid versatility and is a weak ternary acid. Its acidity is weaker than hydrochloric acid, sulfuric acid, and nitric acid, but stronger than acetic acid and boric acid. It can be obtained by dissolving phosphorus pentoxide in hot water. Orthophosphoric acid is obtained by treating apatite with sulfuric acid in the industry. Phosphoric acid is easily deliquescent in the air. Heating will lose water to get pyrophosphoric acid, and further lose water to get metaphosphoric acid. Phosphoric acid is mainly used in pharmaceutical, food, fertilizer and other industries, including as rust inhibitor, food additive, dental and orthopedics, EDIC corrosive, electrolyte, flux, dispersant, industrial corrosive, fertilizer raw material and component household cleaning products. It can also be used as a chemical reagent. Phosphate is a nutrient for all life forms.
Application areaedit
Agriculture: Phosphoric acid is the raw material for the production of important phosphate fertilizers (superphosphate, potassium dihydrogen phosphate, etc.), as well as the raw material for the production of feed nutrients (calcium dihydrogen phosphate).
Industry: Phosphoric acid is an important chemical raw material, the main functions are as follows:
1. Treat the metal surface to form a thin film of insoluble phosphate on the metal surface to protect the metal from corrosion.
2. Mixed with nitric acid as a chemical polishing agent to improve the smoothness of the metal surface.
3. Phosphate esters as raw materials for the production of detergents and pesticides.
4. Raw materials for the production of phosphorus-containing flame retardants.
Food: Phosphoric acid is one of food additives. It is used as a sour agent and yeast nutrient in foods. Cola contains phosphoric acid. Phosphate is also an important food additive and can be used as a nutritional enhancer.
Medicine: Phosphoric acid can be used to prepare phosphorus-containing drugs, such as sodium glycerophosphate.
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