| Appearanace | White to off-white powder |
| Assay | 99% min. |
| Loss on Drying | 0.3%max. |
| Melting Point | 73℃~75℃ |
| Pb | 10 ppm max. |
| As | 2 ppm max. |
| Hg | 1ppm max. |
| Cd | 5 ppm max. |
| Total Bacterial Count | 1,000 cfu/g max. |
| Molds & Yeasts | 100 cfu/g max. |
| Thermotolerant Coliforms | Negative/g |
| Staphylococcus Aureus | Negative/g |