正己烷在乙醇、乙醇-水混合物中的偏摩尔体积

摘要/Abstract

摘要： 汽油与醇混合物作为动力燃料已日益广泛。为了研究醇中杂质水对这种新型动力燃料有关热力学性质的影响,Letcher等^[1]测定了正庚烷-水-醇类三元体系的液-液平衡状态。本文报道C₆H₁₄-C₂H₅OH和C₆H₁₄-C₂H₅OH-H₂O混合物在303.15K的密度,并由此算得正已烷的表观摩尔体积和偏摩尔体积。

关键词: 表观摩尔体积, 偏摩尔体积, 醇-烃-水混合物

Abstract: The apparent and partial molar volumes have been determined dilatometrically for he-xane in ethanol and five ethanol-water mixtures at 303.15K.The results showed that theapparent and partial molar volumes of hexane in ethanol or aqueous solution of ethanol arelarger than the molar volume of pure hexane and very sensitive to the presence of water inethanol in the hydrocarbon-dilution region.A linear relationship was observed between thelimiting apparent molar volume of hexane and molar fraction of water in ethanol-water mix-tures.

Key words: apparent molar volume, partial molar volume, alkane-alcohol-water mixture

王键吉, 刘文彬, 卢锦梭. 正己烷在乙醇、乙醇-水混合物中的偏摩尔体积[J]. 应用化学, 1991, 0(5): 96-98.

Wang Jianji, Liu Wenbin, Lu Jinsuo. PARTIAL MOLAR VOLUMES OF HEXANE IN ETHANOL AND ETHANOL-WATER MIXTURES[J]. Chinese Journal of Applied Chemistry, 1991, 0(5): 96-98.

正己烷在乙醇、乙醇-水混合物中的偏摩尔体积

PARTIAL MOLAR VOLUMES OF HEXANE IN ETHANOL AND ETHANOL-WATER MIXTURES

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