Densities and derived thermodynamic properties for the (n-heptane plus n-octane), (n-heptane plus ethanol) and (n-octane plus ethanol) systems at high pressures

被引：32

作者：

Abdussalam, Ali A. ^{[1
]}

Ivanis, Gorica R. ^{[1
]}

Radovic, Ivona R. ^{[1
]}

Kijevcanin, Mirjana Lj. ^{[1
]}

机构：

[1] Univ Belgrade, Fac Technol & Met, Karnegijeva 4, Belgrade 11120, Serbia

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2016年 / 100卷

关键词：

High pressure density; Isothermal compressibility; Isobaric thermal expansion coefficient; Binary mixtures; EXCESS MOLAR VOLUMES; BINARY-MIXTURES; ISOTHERMAL COMPRESSIBILITIES; REFRACTIVE-INDEXES; ELEVATED PRESSURES; TEMPERATURE-RANGE; LIQUID DENSITIES; 200; MPA; VISCOSITIES; HEXANE;

D O I：

10.1016/j.jct.2016.04.014

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This work reports densities for the pure n-heptane, n-octane and ethanol at temperatures from (288.15 to 413.15) K and at pressures up to 60 MPa. The same properties were determined for the binary mixtures n-heptane + n-octane, n-heptane + ethanol and n-octane + ethanol over the temperature range (293.15-373.15) K and at pressures ranging from (0.1 to 40) MPa. Highly precise densimeter DMA HP was used for density measurements. Experimental values of densities were fitted by the modified Tammann-Tait equation. Additionally, derived volumetric properties, e.g. excess molar volumes, isothermal compressibilities and isobaric thermal expansion coefficients were calculated. The effect of pressure and temperature on the measured and derived properties was discussed. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：89 / 99

页数：11

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