Excess molar volumes of binary mixtures of acetonitrile with n-alkanols at 25°C

被引：17

作者：

Aznarez, SB ^{[1
]}

Postigo, MA ^{[1
]}

机构：

[1] Univ Nacl Comahue, Fac Ingn, Dept Quim, Catedra Fisicoquim, RA-1400 Buenos Aires, Neuquen, Argentina

来源：

JOURNAL OF SOLUTION CHEMISTRY | 1998年 / 27卷 / 11期

关键词：

excess molar volumes; acetonitrile + n-alkanol mixtures;

D O I：

10.1023/A:1022656505917

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Molar excess volumes of acetonitrile with ten n-alkanols (from methanol to decanol) were determined from density measurements at 25 degrees C and normal atmospheric pressure, using a vibrating-tube densimeter. V-E for acetonitrile + methanol mixtures are negative over the entire range of mole fractions. The ethanol and propanol mixtures exhibit sigmoidal curves and positive values are obtained for all remaining mixtures. The results for V-E were compared with those obtained using several theoretical models.

引用

页码：1045 / 1053

页数：9

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