China Vitamin B1 HCl/Thiamine Hydrochloride, Find details about China Vitamin B1 HCl/Thiamine Hydrochloride, Vitamins and Derivatives from Vitamin B1 HCl/Thiamine Hydrochloride
| Test Item | Specification | Result | |
BP2013 | appearance | white or almost white, crystalline powder or colourless crystals | white crystalline powder |
| PH | 2.7~3.3 | 3.0 | |
| Water | ≤5.0% | 3.38% | |
| sulphated ash | ≤0.1% | 0.02% | |
| sulphates | ≤300ppm | <300ppm | |
| heavy metals | ≤20ppm | <20ppm | |
| Assay(on anhydrous basis) | 98.5%~101.0% | 99.5% | |
USP36 | identification | A:IR absorption;B:test of chloride. | comply |
| absorbance of solution | ≤0.025 | 0.016 | |
| limit of nitrate | no brown ring produced at the junction of the two layers | comply | |
| ph | 2.7~3.4 | 3.2 | |
| water | ≤5.0% | 3.38% | |
| ≤0.2% | 0.02% | ||
| ≤1.0% | 0.06% | ||
| Assay(on anhydrous basis) | 98.0%~102.0% | 99.7% |