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产品中心 - 无水乙醇_试剂甲醇_95%脱醛酒精_上海振兴化工一厂

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95%脱醛乙醇

3.1 乙醇（CH₃CH₂OH）含量≥95%（V/V）。
3.2 杂质最高含量
杂质含量应符合表1的规定

表1杂质含量

名称	指标
与水混合实验	合格
蒸发残渣的质量分数/%	≤0.001
酸度（以H+计），mmol/100g	≤0.05
碱度（以OH计），mmol/%	≤0.01
甲醇（CH₃OH）的质量分数/%	≤0.15
丙酮和异丙醇（CH₃COCH₃）计的质量分数/%	≤0.001
杂醇油	合格
戊醇或不发挥的易碳化物的质量分数/%	≥40min
酸累（乙醛计）的质量分数/%	0.001

4 实验方法
4.1   本实验方法中滴定分析用标准溶液，杂质测定用标准溶液和所用制剂及制品，按GB/T601,GB/602,GB/603\之规定制备，实验室用水应符合GB/T6682中三级水规格。
4.2    乙醇（CH₃CH₂OH）含量（酒精度）
将样品注入500ml凉桶中，放入温度计和酒精计，待温度计度数稳定后，读取酒精度数，根据读取的示值，查“酒精浓度温差校正表”校正为20℃时的酒精度。
4.3     杂质
样品量取需精确至0.1ml。
4.4     1 于水混合实验

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