DENSITIES AND EXCESS VOLUMES IN AQUEOUS POLY(ETHYLENE GLYCOL) SOLUTIONS

被引：138

作者：

MULLER, EA

RASMUSSEN, P

机构：

[1] TECH UNIV DENMARK,INST KEMITEK,DK-2800 LYNGBY,DENMARK

[2] UNIV SIMON BOLIVAR,DEPT TERMODINAM & FENOMENOS TRANSFERENCIA,CARACAS 1086-A,VENEZUELA

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 1991年 / 36卷 / 02期

关键词：

D O I：

10.1021/je00002a019

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Densities of aqueous solutions of mono-, di-, tri-, and tetraethylene glycol along with poly(ethylene glycol) (PEG) of average molecular weight 400 have been determined over the entire concentration range at 298.15, 308.15, 318.15, and 328.15 K by using an oscillating tube densimeter. Excess volumes are calculated for each data point, being negative in every case and becoming more negative as the molecular weight increases and as the temperature decreases. Densities for aqueous solutions of PEG of average molecular weight 2000 and 10 000 are presented along a limited concentration range at 328.15 K.

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页码：214 / 217

页数：4

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