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Index Name | Index Value | |
Industrial Grade | Agricultural Grade | |
Purity, ≥ | 99.0 | 99.0 |
Total N, % ≥ | — | 11.74 |
CaO, % ≥ | — | 23.5 |
Insoluble substance in water, % ≤ | 0.10 | 0.10 |
Range of PH value | 4.5-6.5 | 4.5-6.5 |
Pb ≤ | 0.002 | 0.002 |
Sulphate ≤ | 0.02 | 0.02 |
Fe ≤ | 0.001 | 0.001 |
Cl ≤ | 0.005 | 0.005 |
NH4 ≤ | 0.01 | 0.01 |
Cd ≤ | 0 | 0 |
calcium nitrate crystal