Chemical formula: (NH₄)₂SO₄
Chemical formula: (NH₄)₂SO₄
Chemical formula: (NH₄)₂SO₄
Application
Provide nitrogen nutrition. Nitrogen is one of the macroelements required for plant growth.
It helps promote the growth of plant stems and leaves, increase the greenness of leaves, and improve photosynthesis efficiency.
Appropriate use can supplement the nitrogen content in the soil and improve soil fertility.
| Item | Unit | Caprolactam Grade | Steel Grade | |
| Appearance | — | Achromatous Crystal | White or off-white Powder | White or off-white Granular |
| Size | mm | 2-4; 0-2; | 0-1 | 2-5 |
| Nitrogen Content | % min | 21.0 | 20.5 | 20.5 |
| Purity: | % min | 99 | 96.5 | 96.5 |
| Sulphur: | % min | 24 | 23.5 | 23.5 |
| Moisture | % max | 0.2 | 1.0 | 1.0 |
| Free Acid | % max | 0.03 | 0.20 | 0.20 |
| Iron(Fe) | % max | 0.007 | — | — |
| Arsenic (As) | % max | 0.00005 | — | — |
| Heavy Metals | % max | 0.005 | — | — |
| Water-insoluble Matters | % max | 0.01 | — | — |
| Hardness | N min | 35 | ||
