技术指标 | 规格 | ||
优级纯GR | 分析纯AR | 化学纯CP | |
含量 | ≥99.6% | ≥99.5% | ≥98.5% |
水不溶物 | 0.002% | ≤0.005% | ≤0.01% |
灼烧残渣 | ≤0.005% | ≤0.02% | 0.05% |
硫酸盐 | ≤0.002% | ≤0.005% | ≤0.005% |
磷酸盐 | ≤0.0002% | ≤0.0005% | ≤0.001% |
钠 | ≤0.005% | ≤0.005% | -- |
镁 | ≤0.0005% | ≤0.001% | ≤0.002% |
钾 | ≤ 0.005% | ≤ 0.005% | -- |
钙 | ≤ 0.0005% | ≤0.001% | ≤0.002% |
铁 | ≤0.0002% | ≤0.0005% | ≤0.001% |
镍 | ≤0.0001% | - | - |
铜 | ≤0.0002% | - | - |
锌 | ≤0.0002% | - | - |
铅 | ≤0.0001% | - | - |