| ≥1 piece |
Parameter | Grade |
Standard: GB3149-92 | Food |
Colority ≤ | 20.0 |
Content as H3P04 % ≥ | 85.0 |
Chloride as Cl % ≤ | 0.0005 |
Sulphate as SO4 % ≤ | 0.003 |
Heavy metal as Pb % ≤ | 0.0005 |
Arsenic as As% ≤ | 0.00005 |
Reductive matter as H3P03 % ≤ | 0.012 |
Fluoride as F% ≤ | 0.001 |
Fe % ≤ | 0.0001 |
P2O5 ≥ | 61.5% |
Density | 1.7 |
Agriculture: phosphoric acid is the raw material for the production of important phosphate fertilizer (calcium superphosphate, potassium dihydrogen phosphate, etc.), and also the raw material for the production of feed nutrients (calcium dihydrogen phosphate).
Industry: phosphoric acid is an important chemical raw material. Its main functions are as follows:
1.Treat the metal surface and create a film of insoluble phosphate on the metal surface to protect the metal from corrosion.
2.Mixed with nitric acid as a chemical polisher to improve the finish of metal surfaces.
3.Production of washing products, insecticide raw materials phosphate.
4.Raw materials for producing phosphorous flame retardant.
Food: phosphoric acid is one of food additives. It is used as an acid and yeast nutrient in food. Phosphate is also an important food additive and can be used as a nutrient enhancer.
Medicine: phosphoric acid can be used to make phosphorous drugs, such as sodium glycerophosphate.