指标名称 | 规格 | |
分析纯AR | 化学纯CP | |
含量 | ≥99.0% | ≥98.0% |
PH | 8.0-10.0 | - |
澄清实验度 | ≤4 | - |
不溶物及氢氧化铵沉淀 | ≤0.015 % | ≤0.010% |
游离碱 | - | ≤0.040% |
磷酸盐 | ≤0.001% | ≤0.003% |
硫酸盐 | ≤0.02% | ≤0.020% |
硝酸盐 | ≤0.005% | 合格 |
钡 | 应符合规定 | 合格 |
重金属 | ≤0.001% | ≤0.002% |
铁 | ≤0.001% | ≤0.002% |
锌 | ≤0.01% | ≤0.01% |
锶 | ≤0.05% | - |
铜 | ≤0.0002% | - |
镁及碱金属 | ≤0.30% | ≤0.60% |
钾 | ≤0.01% | - |
镁 | ≤0.1% | - |
钠 | ≤0.1% | - |
砷 | ≤0.0003% | ≤0.0002% |
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