指标名称 | 规格 | ||
优级纯GR | 分析纯AR | 化学纯CP | |
含量 | ≥99.5% | ≥99.5% | ≥99.0% |
PH | - | 5.0~7.0 | 5.0~7.0 |
澄清度实验 | 合格 | 合格 | 合格 |
水不溶物 | ≤0.005% | ≤0.01% | ≤0.02% |
总氮量 | ≤0.001% | ≤0.002% | ≤0.005% |
钠 | ≤0.005% | ≤0.01% | ≤0.02% |
钾 | ≤0.005% | ≤0.005% | ≤0.01% |
钙 | ≤0.01% | ≤0.05% | ≤0.1% |
铁 | ≤0.00005% | ≤0.0001% | ≤0.0002% |
锶 | ≤0.05% | ≤0.05% | ≤0.1% |
重金属 | ≤0.0002% | ≤0.0005% | ≤0.001% |
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