用气液色谱研究含乙二醇体系的盐效应

Studies on Salt Effects for Systems Including Ethylene Glycol by Gas-liquid Chromatography

用气液色谱法测定了甲醇、乙醇、正丙醇、正丁醇、丙酮及水在含盐(乙酸钾、硝酸钾、硫氰酸钾或碘化钾)乙二醇中无限稀释条件下的活度系数;含盐溶剂的选择度及盐效应参数。本文讨论了盐对活度系数的影响,提出了一些溶盐选择的一般规律。

The infinte dilute activity coefficients, the relative volatilities, the selectivities of salt-containing solvent, and the salt effect parameters have been determined by gas-liquid chfomatographic method for methanol, ethanol, n-propanol, n-butanol, acetone and water in ethylene glycol containing salt , such as CH3 COOK, KNO3 , KSCN and KI. The effects of salt on activity coefficients were discussed and a few remarks were suggested for salt selection.