| 指标名称 | Name of index | BP2010 | E-331(iii) | USP-30 | |
| 外观 | Description | Crystalline white powder or colourless crystals | |||
| 含量 | Content( anhydrous basis) | % | 99.0-101.0 | ≥99.0 | 99.0-100.5 |
| 溶解度 | Solubility | Freely soluble in water, practically insoluble in ethanol (96 per cent) | -- | -- | |
| 鉴别试验 | Identification | >Pass test | Pass test | Pass test | |
| 溶液外观 | Appearance of solution | Solution is clear and colourless | -- | -- | |
| 酸碱度 | Acidity or Alkalinity | Pass test | -- | Pass test | |
| 酒石酸盐 | Tartrate | -- | -- | Pass test | |
| 硫酸盐 | Sulphate | ≤% | 0.015 | -- | -- |
| 重金属 | Heavy metals | ≤% | 0.001 | -- | 0.001 |
| 草酸盐 | Oxalate(As H2C2O4) | ≤% | 0.03 | 0.01 | -- |
| 氯化物 | Chloride | ≤% | 0.005 | -- | -- |
| 干燥失重 | Loss on drying, | % | 11.0-13.0 | 10.0-13.0 (180 °C, 18 hours) | 10.0-13.0 (180 °C, 18 hours) |
| 致热源 | Pyrogens | Pass test | -- | -- | |
| 易碳化物 | Readily carbonisable substances | Pass test | -- | -- | |
| pH值（5%水溶液） | pH value(5% aqueous solution) | -- | 7.5-9.0 | -- | |
| 砷 | Arsenic(As) | ≤ppm | -- | 1 | -- |
| 铅 | Lead(Pb) | ≤ppm | -- | 2 | -- |
| 汞 | Mercury(Hg) | ≤ppm | -- | 1 | -- |
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