指标名称 | 规格 | |
分析纯AR | 化学纯CP | |
含量 | ≥99% | ≥98% |
PH | 5.5~8.5 | - |
澄清度试验 | 合格 | 合格 |
水溶液反应 | 合格 | 合格 |
水不溶物 | ≤0.005% | ≤0.02% |
氯化物 | ≤0.2% | ≤0.5% |
溴酸盐 | ≤0.001% | ≤0.003% |
碘化物 | ≤0.02% | ≤0.05% |
硫酸盐 | ≤0.002% | ≤0.005% |
总氮量 | ≤0.001% | ≤0.002% |
镁 | ≤0.0005% | ≤0.002% |
钾 | ≤0.1% | |
钙 | ≤0.002% | ≤0.02% |
钡 | ≤0.002% | ≤0.005% |
铁 | ≤0.0002% | ≤0.0005% |
重金属 | ≤0.0002% | ≤0.0005% |
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