Densities and viscosities of (N,N-dimethylformamide plus water) at atmospheric pressure from (283.15 to 353.15) K

被引：102

作者：

Bernal-Garcia, J. Manuel ^{[2
]}

Guzman-Lopez, Adriana ^{[1
]}

Cabrales-Torres, Alberto ^{[2
]}

Estrada-Baltazar, Alejandro ^{[1
]}

Iglesias-Silva, Gustavo A. ^{[1
]}

机构：

[1] Inst Tecnol Celaya, Dept Ingn Quim, Guanajuato 38010, Mexico

[2] Inst Mexicano Petr, Mexico City 07330, DF, Mexico

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2008年 / 53卷 / 04期

关键词：

D O I：

10.1021/je700671t

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Densities and viscosities of (N,N-dimethylformamide + water) have been measured from T = (283.15 to 353.15) K in the entire mole fraction composition. Densities are measured with a vibrating tube densimeter, while two different Cannon-Fenske viscosimeters are used for the viscosity measurements. Excess molar volumes and viscosity deviations from the composition weighted average of the pure component viscosities are calculated from experimental measurements and represented with Redlich-Kister equations. Excess molar volumes present negative deviations from ideality at all investigated temperatures and become more negative with decreasing temperature. Viscosity deviations are positive for all the temperatures and mole fractions considered in this work.

引用

页码：1024 / 1027

页数：4

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