| ≥1 piece |
biological shell powder
biological shell powder
| Item | Unit | Specification |
| CaCO3 | % | 99 |
| PH | - | 8.9 |
| Loss on drying | % | 0.3 |
| Acid-insoluble substances | % | 0.2 |
| Barium | % | 0.03 |
| Lead | ppm | 3 |
| Arsenic | mg/kg | 3 |
| Heavy metals | mg/kg | 10 |
| Iron | % | 0.1 |
| Limit of fluoride | % | 0.005 |
| mercury | ppm | 0.5 |
| Magnesium and alkali salts | % | 1.0 |
| 180m through % | - | 99.4 |
| CAS No.: 471-34-1 | Other Names: biological calcium carbonate | Place of Origin: Shandong China (Mainland) |
| Type: Other | white: white |