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No. | Item | Standard Specification | Actual Specification |
1 | Appearance | White Crystalline Powder | White Crystalline Powder |
2 | Content | 99.00% min | 99.5 |
3 | Chloride | 0.020% max | 0.006 |
4 | Sulfate | 0.020% max | 0.005 |
5 | NTA | 1.00% max | 0.3% |
6 | Heavy Metal | 10ppm max | 2ppm |
7 | Chelating Value mg(CaCO3)/g | 265 min | 275 |
8 | PH Value (50g/L,25℃) | 4.0-5.0 | 4.57 |