Testing Item | Standard | Result |
MSP content /% | 98.0~103.0 | 99.6 |
Water insoluble /% | ≤0.2 | 0.09 |
PH value | 4.1~4.7 | 4.3 |
Fluoride ( F)/% | ≤0.005 | 0.002 |
Arsenic (As) /% | ≤0.0003 | 0.0001 |
Heavy Metal(Pb) /% | ≤0.001 | 0.0003 |
Lead | ≤0.0004 | 0.0001 |
Loss on drying/% | ≤2 | 0.2 |
Note: Special requirements of particle size should be negotiated by both suppliers and customers |