分子示意图:
检测标准:
检验项目 ITEMS | 标准 criteria |
性状 Appearance | 本品为白色或类白色粉末;水溶液显酸性反应。White or almost white amorphous powder.;Acidic reaction in aqueous solution. |
有效含量Assay | ≥40% |
炽灼残渣 Residue on ignition | ≤1.0% |
重金属 Heavy metal | ≤10ppm |
贮藏 Packaging and storage | 密封,在干燥处保存 Preserve in well-closed containers. |