An improved method of synthesizing trimethyl orthoformate through azeotropic distillation by taking sodium methoxide in methanol and chloroform as raw materials has been presented by the author.
介绍了以甲醇钠甲醇溶液与氯仿为原料，采用共沸蒸馏法制备原甲酸三甲酯的改进工艺。
The nanosized TiO2 powder prepared by foam flotation method was compared with the sample prepared by azeotropic distillation method.
对泡沫悬浮法和共沸蒸馏法的防团聚效果进行了系统比较。
Impurities in the dioxane were determined. The analysis method has important directive value for separating and purifying 1, 4-dioxane with azeotropic rectification.
确定了1,4 -二氧六环中所含的杂质，对共沸精馏法分离及提纯1,4 -二氧六环有重要指导价值。
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