Items | Standard |
Solubility in Water | Freely Soluble |
Solubility in Ethanol | Slightly Soluble |
Ultraviolet Absorption | 227±2nm |
Test for Potassium | Positive |
Precipitation test | Yellow Precipitate |
Assay Content % | 99.0~101.0% |
Loss on Drying(105℃,2h) % | ≤1 |
Organic Impurities μg/g | ≤20 |
Impurity A % | ≤0.125 |
Impurity B mg/kg | ≤20 |
Fluoride mg/kg | ≤3 |
Heavy Metals mg/kg | ≤5 |
Arsenic mg/kg | ≤3 |
Lead mg/kg | ≤1 |
Selenium mg/kg | ≤10 |
PH (1 in 100 solution) | 5.5-7.5 |
Particle Size | 30-100mesh |