指标名称 | 规格 | 可根据客户要求定制 | ||
分析纯 | 化学纯 | 电子级 | ||
含量 | ≥99% | ≥98% | - | |
澄清度试验 | 合格 | 合格 | - | |
水不溶物 | ≤0.003% | ≤0.008% | - | |
灼烧残渣 | ≤0.01% | ≤0.005% | - | |
氯化物 | ≤0.001% | ≤0.002% | - | |
硫化合物 | ≤0.005% | ≤0.01% | - | |
磷化合物 | ≤0.002% | ≤0.005% | - | |
草酸盐 | 合格 | - | - | |
钙 | ≤0.005% | ≤0.02% | ≤200ppb | |
铁 | ≤0.0005% | ≤0.002% | ≤200ppb | |
重金属 | ≤0.0005% | ≤0.001% | - | |
铝 | - | - | ≤500ppb | |
锌 | - | - | ≤600ppb | |
镉 | - | - | ≤50ppb | |
钡 | - | - | ≤50ppb | |
铅 | - | - | ≤50ppb | |
砷 | - | - | ≤50ppb | |
镁 | - | - | ≤50ppb | |
钒 | - | - | ≤50ppb | |
铬 | - | - | ≤50ppb | |
锰 | - | - | ≤50ppb | |
钴 | - | - | ≤50ppb | |
镍 | - | - | ≤50ppb | |
铜 | - | - | ≤50ppb | |
锶 | - | - | ≤50ppb | |
钠 | - | - | ≤500ppb | |
钾 | - | - | ≤500ppb | |
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