指标名称 | 规格 | ||
分析纯AR | 化学纯CP | 电子级 | |
含量 | ≥99.5% | ≥99.0% | ≥97.0% |
澄清度实验 | 合格 | 合格 | - |
水不溶物 | ≤0.005% | ≤0.01% | - |
PH | 7.0~9.0 | 7.0~9.0 | - |
氯化物 | ≤0.002% | ≤0.005% | - |
磷酸盐 | ≤0.002% | ≤0.005% | - |
硫酸盐 | ≤0.002% | ≤0.005% | - |
钙 | ≤0.005% | ≤0.005% | ≤4ppm |
铁 | ≤0.0005% | ≤0.001% | ≤4ppm |
镁 | ≤0.0005% | ≤0.001% | ≤1ppm |
钠 | ≤0.02% | ≤0.10% | ≤300ppm |
重金属 | ≤0.0005% | ≤0.001% | - |
还原高锰酸钾物质 | 合格 | 合格 | - |
银 | - | - | ≤1ppm |
铝 | - | - | ≤1ppm |
钡 | - | - | ≤80ppm |
镉 | - | - | ≤1ppm |
钴 | - | - | ≤1ppm |
铬 | - | - | ≤1ppm |
铜 | - | - | ≤1ppm |
锂 | - | - | ≤1ppm |
锰 | - | - | ≤1ppm |
镍 | - | - | ≤1ppm |
铅 | - | - | ≤1ppm |
锡 | - | - | ≤4ppm |
锶 | - | - | ≤1ppm |
锌 | - | - | ≤1ppm |
|
18016028872