China Wholesale Factory Vitamins Feed Grade Pure Thiamine Hydrochloride Vitamin B1HCl Powder Price, Find details about China Thiamine Hydrochloride, Vitamin B1 from Wholesale Factory Vitamins Feed Grade Pure Thiamine Hydrochloride Vitamin B1HCl Powder Price
Testing Item | Standard | Result |
Appearance | White crystals or crystalline powder | White crystalline powder |
Assay (on anhydrous basis) | 98.0% ~ 102.0% | 99.7% |
Appearance of solution | Clear, not more intense than Y7 or GY7 | Clear, not more intense than Y7 |
Appearance of solution | Clear, not more intense than Y7 | Conformss |
PH | 2.7 ~ 3.3 | 3.2 |
Water | ≤ 5.0% | 3.44% |
Sulphates | ≤ 0.03% | <0.03% |
Residue on ignition | ≤ 0.1% | 0.01% |
Absorbance of solution | ≤ 0.025 | 0.012 |
Limit of nitrate | No brown ring is produced at the junction of the two layers | No brown ring is produced at the junction of the two layers |
Related compounds | ≤ 1.0% | 0.02% |