Complaint
| Item | White food grade | White tech grade | Refined tech grade |
| MgCl2 | 46.4%min | 46.4%min | 46%min |
| Ca | 0.1%max | 0.4%max | 0.9%max |
| SO4- | 0.4%max | 0.5%max | 2.5%max |
| Water insoulbe | 0.1%max | 0.2%max | 0.2%max |
| PH | 7-9 | 7-9 | 7-9 |
| As | 0.5ppm max | ----- | ----- |
| Pb | 1ppm max | ------ | ------ |
| NH4 | 50ppm max | ------ | ------- |
