指标名称 | 规格 | |||||
分析纯 | 化学纯 | 层析专用 | ||||
颗粒度，% | - | - | 中性 | 酸性 | 碱性 | |
60目-100目，≥ | - | - | 75.0% | 75.0% | 75.0% | |
100目-200目，≥ | - | - | 75.0% | 75.0% | 75.0% | |
200目-300目，≥ | - | - | 70.0% | 70.0% | 70.0% | |
活度试验 | - | - | 合格 | 合格 | 合格 | |
PH值 | - | - | 6.5-7.5 | 3.8-4.8 | 9.0-10.0 | |
水中溶解物，≤ | - | - | 0.5% | 0.5% | 0.5% | |
干燥失重，≤ | - | - | 1.0% | 1.0% | 1.0% | |
灼烧失重，≤ | 5.0 | 5.0 | 8.0% | 8.0% | 8.0% | |
水溶物，≤ | 0.5 | 0.075 | - | - | - | |
氯化物，≤ | 0.01 | 0.02 | - | - | - | |
硅酸盐 | 合格 | 合格 | - | - | - | |
硫酸盐，≤ | 0.05 | 0.014 | - | - | - | |
铁，≤ | 0.01 | 0.015 | - | - | - | |
碱和碱土金属，≤ | 0.5 | 0.5 | - | - | - | |
重金属，≤ | 0.005 | 0.005 | - | - | - | |
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