技術(shù)文章
Technical articles
更新時(shí)間:2012-06-14
點(diǎn)擊次數(shù):1593
| 檢測項(xiàng)目 SPECIFICATION PROPERTIES | 技術(shù)指標(biāo) STANDARD | 實(shí)測結(jié)果 RESULTS |
| 外觀 Appearance | 白色結(jié)晶粉末 White crystalline powder | 符合 Conforms |
| 含量 Assay | 99.0-101% | 99.61% |
| 干燥失重 Loss on drying | ≤0.5% | ≤0.15% |
| 溶解性(0.1M水溶液) Solubility(0.1M aq) | 無色 澄清 Clear colorless solution | 符合 Conforms |
| PH(1%水溶液) PH(1% aq) | 3.5-4.l | 3.58 |
| 紫外吸光度/260nm Ultraviolet absorbance | ≤0.04 | 0.031 |
| 紫外吸光度/280nm Ultraviolet absorbance | ≤0.02 | 0.008 |
| 鈣 Ca | <20PPM | 符合 Conforms |
| 鐵 Fe | <5PPM | 符合 Conforms |