CAS number: 9004-32-4
Molecular formula: C8H16NaO8
molecular weight: 265.204
Chemical structure:
Product name | CMC(Carboxymethylcellulose Sodium) | |
Shelf life | Two Years | |
Inspection standard | Standard USP32 | |
Items | Specification | Results |
Identification A to C | Complies | Conforms |
Appearance | White to cream-colored powder or granules | Conforms |
Viscosity (2% water solution) | 5000-15000mpa.s | 5600mpa.s |
PH | 6.5-8.5 | 6.9 |
Loss on drying | ≤10.0% | 4.3% |
Chloride | ≤1.0% | 0.9% |
Heavy metals | ≤20ppm | <20ppm |
Organic volatile impurities | Complies | Conforms |
Assay(Na) | 6.5-9.5% | 8.2% |
Conclusion | It conforms above test of USP32. |