技术指标 | 规格 | |
分析纯AR | 化学纯CP | |
含量 | ≥98.0% | ≥97.0% |
澄清度试验 | 合格 | 合格 |
盐酸不溶物 | ≤0.01% | ≤0.05% |
水溶物 | ≤0.5% | -- |
灼烧失重 | ≤2.0% | ≤3.0% |
氯化物 | ≤0.01% | ≤0.03% |
硫酸盐 | ≤0.02% | ≤0.1% |
磷酸盐 | ≤0.003% | ≤0.01% |
总氮量 | ≤0.001% | ≤0.003% |
碳酸盐 | ≤1.5% | -- |
钠 | ≤0.05% | ≤0.1% |
钾 | ≤0.005% | ≤0.01% |
钙 | ≤0.02% | ≤0.1% |
铁 | ≤0.005% | ≤0.01% |
铜 | ≤0.001% | -- |
锌 | ≤0.005% | ≤0.01% |
砷 | ≤0.0001% | -- |
钡和锶 | ≤0.005% | ≤0.01% |
重金属 | ≤0.003% | ≤0.01% |