指标名称 | 规格 | |||
优级纯GR | 分析纯AR | 化学纯CP | 医药级 | |
含量 | ≥99.5% | ≥99.0% | ≥99.5% | 99.5% |
PH | - | 5.0~8.0 | 5.0~8.0 | -- |
澄清度实验 | 合格 | 合格 | 合格 | 合格 |
水不溶物 | ≤0.002% | ≤0.005% | -- | -- |
氯化物 | ≤0.0002% | ≤0.0005% | ≤0.01% | 0.01% |
砷 | ≤0.00005% | ≤0.0001% | ≤0.0002% | 0.0002% |
钠 | ≤0.005% | ≤0.005% | -- | -- |
钙 | ≤0.01% | ≤0.02% | ≤0.02% | 0.02% |
锰 | ≤0.0005% | ≤0.001% | -- | -- |
铁 | ≤0.0002% | ≤0.0005% | ≤0.0015% | 0.0015% |
重金属 | ≤0.0002% | ≤0.0005% | ≤0.001% | 0.001% |
锌 | -- | -- | -- | 合格 |
灼烧失重 | -- | -- | -- | 48.0-52.0% |
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