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分子式：C2H4O2
分子量：60.05
外观：无色透明液体，低温下凝固为冰状晶体。有酸味。能与水、乙醇、乙醚、四氯化碳等有机溶剂相混溶，不溶于二硫化碳。
| 含量不少于 | 99.5% |
| 凝固点(°C) | 15.1以上 |
| 杂质最高含量(指标以%计) | |
| 蒸发残渣 | 0.002 |
| 与水混合试验 | 合格 |
| 氯化物(Cl) | 0.0001 |
| 硫酸盐(SO4) | 0.0002 |
| 铁(Fe) | 0.0001 |
| 铜(Cu) | 0.00005 |
| 乙酸酐[(CH3CO)2O] | 0.02 |
| 还原重络酸盐物质(以O计) | 0.008 |
| 铅(Pb) | 0.00005 |
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