| Phosphoric Acid Product Quality Indicators | ||||||
| Analysis Items | Indicators | |||||
| 85% Phosphoric Acid | 75% Phosphoric Acid | |||||
| Premium Grade | First Grade | Qualified Grade | Premium Grade | First Grade | Qualified Grade | |
| Color / Abbreviation | ≤ 20 | ≤ 30 | ≤ 40 | ≤ 20 | ≤ 30 | ≤ 40 |
| Phosphoric Acid (H3PO4) | ≥ 85.0 | ≥ 85.0 | ≥ 85.0 | ≥ 75.0 | ≥ 75.0 | ≥ 75.0 |
| Chloride (calculated as CI) | ≤ 0.0005 | ≤0.0005 | ≤0.0005 | ≤0.0005 | ≤0.0005 | ≤0.0005 |
| Sulfate (calculated as SO4) | ≤ 0.003 | ≤0.005 | ≤ 0.01 | ≤ 0.003 | ≤ 0.005 | ≤ 0.01 |
| Iron (Fe) | ≤ 0.002 | ≤ 0.002 | ≤0.005 | ≤ 0.002 | ≤ 0.002 | ≤ 0.005 |
| Arsenic (As) | ≤ 0.0001 | ≤ 0.003 | ≤ 0.01 | ≤ 0.0001 | ≤ 0.005 | ≤ 0.01 |
| Sulfate (calculated as SO4) | ≤ 0.001 | ≤ 0.003 | ≤ 0.005 | ≤ 0.001 | ≤ 0.001 | ≤ 0.005 |
Application Scope
Agriculture: Phosphoric acid is an important raw material for producing phosphate fertilizers (superphosphate, monopotassium phosphate, etc.) and also a raw material for producing feed nutritional agents (calcium dihydrogen phosphate).
Industry: Phosphoric acid is an important chemical raw material with the following main functions:
1. Treat metal surfaces to form an insoluble phosphate film on the metal surface to protect the metal from corrosion.
2. Mix with nitric acid as a chemical polishing agent to improve the smoothness of the metal surface.
3. Raw material for producing phosphate esters for washing products and insecticides.
4. Raw material for producing phosphorus-containing flame retardants
Food: Phosphoric acid is one of the food additives, acting as an acidulant and yeast nutrient in food, and phosphoric acid is contained in Coca-Cola. Phosphates are also important food additives and can be used as nutritional enhancers.
【Label Description】
