| ITEM | STANDARD |
|
APPERANCE |
white or little yellow crystal material |
| CONTENT, ％ |
≥98 |
| CALCIUM, ％ |
≥30 |
| WATER, ％ |
≤0.5 |
| PH VALUE(10%SOLUTED WATER) |
6.0-7.5 |
| HEAVY METALS（PB） % |
≤0.002 |
| ARSENIC % | ≤0.002 |
| NON-SOLUBLE % | ≤0.2 |
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