SEARCH FOR MULTICRITICAL POINTS IN LIQUID-MIXTURES - SHIELD REGION AND THE 3-STATE POTTS POINT

被引：12

作者：

DAS, BK ^{[1
]}

GRIFFITHS, RB ^{[1
]}

机构：

[1] CARNEGIE MELLON UNIV,DEPT PHYS,PITTSBURGH,PA 15213

来源：

JOURNAL OF CHEMICAL PHYSICS | 1979年 / 70卷 / 12期

关键词：

D O I：

10.1063/1.437429

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：

In a study of the mixture, ethylene glycol + water + lauryl alcohol + nitromethane + nitroethane we have observed a region of four coexisting liquid phases between 37 and 42 °C. Analysis of the compositions of the coexisting phases provides fairly convincing evidence that they belong to a shield" region noted previously in theoretical studies of a three-component model and a van der Waals model of binary mixtures. Such a region could be the starting point in a search for the multicritical point D2. On the other hand its presence is good evidence for the absence in this mixture of the fluid analog of the three-state Potts model multicritical point C2. This is in agreement with studies in systems with symmetry-breaking phase transitions and lends support to the hypothesis that C2 does not occur in three-dimensional systems. © 1979 American Institute of Physics."

引用

页码：5555 / 5566

页数：12