| Item | USP | CP |
| Identification | Conforms | |
| pH | 5.0-7.5 | 5.0-7.0 |
| Water-soluble Substances (%) | ≤0.25 | ≤0.25 |
| Residue on Ignition/ Sulfated ash (%) | 1.8-2.2 | 1.8-2.2 |
| Loss on drying (%) | ≤7.0 | ≤6.0 |
| Bulk Density (g/cm3) | Conforms | -- |
| Conductivity(µS/cm) | ≤75 | ≤75 |
| Degree of polymerization | ≤350 | ≤350 |
| Heavy metal (%) | -- | ≤0.001 |
| Particle Size: SH-SMCC50(μm) SH-SMCC90(μm) | D50:40~75 D90:70~130 | D50:40~75 D90:70~130 |







