指标名称 | 规格 | ||
优级纯GR | 分析纯AR | 化学纯CP | |
含量 | 98.0 | ≥98.0% | ≥97.0% |
澄清度实验 | 合格 | 合格 | 合格 |
水不溶物 | 0.002 | ≤0.005 % | -- |
灼烧残渣 | 0.005 | ≤0.005% | ≤0.01% |
氯化物 | 0.0005 | ≤0.0005% | ≤0.001% |
硫酸盐 | 0.001 | ≤0.002% | ≤0.005% |
硝酸盐 | 0.001 | ≤0.001% | -- |
磷酸盐 | 0.0003 | ≤0.0005% | -- |
镁 | 0.0002 | ≤0.0004% | ≤0.001% |
钙 | 0.0005 | ≤0.001% | ≤0.002% |
铁 | 0.0002 | ≤0.0005% | ≤0.001% |
重金属 | 0.0002 | ≤0.0005% | ≤0.001% |
还原高锰酸钾物质 | 0.005 | ≤0.01% | ≤0.01% |
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