| 指标名称 | 规格 | |
| 分析纯AR | 化学纯CP | |
| 含量 | ≥98.0% | ≥97.0% |
澄清度试验 | 合格 | 合格 |
| 盐酸不溶物 | ≤0.01% | ≤0.05% |
水溶物 | ≤0.5% | -- |
灼烧失重 | ≤2.0% | ≤3.0% |
| 氯化物 | ≤0.01% | ≤0.03% |
| 硫酸盐 | ≤0.02% | ≤0.1% |
| 磷酸盐 | ≤0.003% | ≤0.01% |
| 总氮量 | ≤0.001% | ≤0.003% |
| 碳酸盐 | ≤1.5% | -- |
| 钠 | ≤0.05% | ≤0.1% |
| 钾 | ≤0.005% | ≤0.01% |
| 钙 | ≤0.02% | ≤0.1% |
| 铁 | ≤0.005% | ≤0.01% |
| 铜 | ≤0.001% | -- |
| 锌 | ≤0.005% | ≤0.01% |
| 砷 | ≤0.0001% | -- |
钡和锶 | ≤0.005% | ≤0.01% |
| 重金属 | ≤0.003% | ≤0.01% |
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