Item | Specification | Test Result | |
Appearance | White powder | White powder | |
0.5% aqueous solution viscosity | 40000cP-60000mPa.s | 58000mPa.s | |
PH | 2.5-3.5 | 3.0 | |
Loss on drying | 2.0%MAX | 1.0% | |
Residue on ignition | 2.0%MAX | 1.0% | |
Heavy Metal | 20PPM MAX | 10PPM | |
Carboxy | 56.0-68.0% | 60.0% | |
Clarity | 99%MIN | 99.13% | |
Conclusion | The goods conform to USP standard |