ETHANE-1,2-DIOL-2-METHOXYETHANOL SOLVENT SYSTEM - DEPENDENCE OF THE RELATIVE PERMITTIVITY AND REFRACTIVE-INDEX ON THE TEMPERATURE AND COMPOSITION OF THE BINARY MIXTURE

被引:45
作者
FRANCHINI, GC [1 ]
MARCHETTI, A [1 ]
TAGLIAZUCCHI, M [1 ]
TASSI, L [1 ]
TOSI, G [1 ]
机构
[1] UNIV MODENA,DEPT CHEM,VIA G CAMPI 183,I-41100 MODENA,ITALY
来源
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1991年 / 87卷 / 16期
关键词
D O I
10.1039/ft9918702583
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
The extrathermodynamic parameters, relative permittivity (epsilon-r) and refractive index (n), have been measured for ethane-1,2-diol-2-methoxyethanol binary mixtures over the entire composition range, at various temperatures ranging between - 10 and 80-degrees-C. For this system, as far as for many solvent-cosolvent systems which are useful for analytical and electrochemical applications, the properties cited above are continuous but not linear functions of the binary composition. Various equations have been applied in order to establish the best regression models for the relationship y = f(X), where X is the composition of the mixture. On the whole, minima occurred in the excess function (epsilon-E), showing the existence of various solvent-cosolvent complexes of different stoichiometric ratios (2:1, 1:1 or 1:2) and of different thermostabilities, which may be interpreted in terms of moderate interactions such as dipolarity, polarizability and hydrogen bonding between the mixed solvents. Among the above complexes, the ethane-1,2-diol-2-methoxyethanol 1:2 adduct is suggested to be the true 'limiting mixture', on the borderline between the types of behaviour typical of the two pure solvents. Furthermore, empirical patterns in the refractive index were used to scrutinize the most important mixing rules in order to determine the properties of the mixture on the basis of those of its pure components.
引用
收藏
页码:2583 / 2588
页数:6
相关论文
共 20 条
  • [1] Arago D. F, 1806, MEM ACAD FR, P7
  • [2] DALE D, 1864, PHIL T R SOC LONDON, V153, P317
  • [3] EYRING H, 1969, SIGNIFICANT LIQUID S, P110
  • [4] AN APPROACH TO THE PROBLEM OF THE DEPENDENCE OF THE DISSOCIATION-CONSTANT OF WEAK ELECTROLYTES ON THE TEMPERATURE AND ON THE SOLVENT COMPOSITION IN THE ETHANE-1,2-DIOL-2-METHOXYETHANOL SOLVENT SYSTEM
    FRANCHINI, G
    MARCHETTI, A
    PRETI, C
    TASSI, L
    TOSI, G
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1989, 85 : 1697 - 1707
  • [5] A CONDUCTOMETRIC STUDY OF DISSOCIATION OF PICRIC ACID IN 2-METHOXYETHANOL AND 1,2-ETHANEDIOL FROM -10 TO 80-DEGREES-C
    FRANCHINI, G
    ORI, E
    PRETI, C
    TASSI, L
    TOSI, G
    [J]. CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1987, 65 (04): : 722 - 726
  • [6] EFFECTS OF TEMPERATURE AND SOLVENT COMPOSITION ON CONDUCTOMETRIC TITRATIONS IN NONAQUEOUS MIXED-SOLVENTS
    FRANCHINI, G
    PRETI, C
    TASSI, L
    TOSI, G
    [J]. ANALYTICAL CHEMISTRY, 1988, 60 (21) : 2358 - 2364
  • [7] CONDUCTOMETRIC TITRATIONS OF POLYPROTIC ACIDS IN NONAQUEOUS MIXED-SOLVENTS - EFFECTS OF TEMPERATURE AND COMPOSITION OF THE SOLVENT MIXTURE
    FRANCHINI, G
    MARCHETTI, A
    PRETI, C
    TASSI, L
    TOSI, G
    [J]. ANALYTICAL CHEMISTRY, 1989, 61 (02) : 177 - 184
  • [8] THE ETHANE-1,2-DIOL-2-METHOXYETHANOL SOLVENT SYSTEM - THE DEPENDENCE OF THE DISSOCIATION-CONSTANT OF PICRIC ACID ON THE TEMPERATURE AND COMPOSITION OF THE SOLVENT MIXTURE
    FRANCHINI, GC
    TASSI, L
    TOSI, G
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1987, 83 : 3129 - 3138
  • [9] THE DETERMINATION OF REFRACTIVE INDICES OF COLLOIDAL PARTICLES BY MEANS OF A NEW MIXTURE RULE OR FROM MEASUREMENTS OF LIGHT SCATTERING
    HELLER, W
    [J]. PHYSICAL REVIEW, 1945, 68 (1-2): : 5 - 10
  • [10] CONTRIBUTION TO STUDY OF COMPLEXES FORMED CH-3OH.2 H-2O - C-4H-8O-2.3 H-2O IN CERTAIN TERNARY-SYSTEMS WATER-METHANOL-DIOXAN, BY DETERMINATION OF THEIR PHYSICOCHEMICAL PARAMETERS
    JANNAKOUDAKIS, D
    PAPANASTASIOU, G
    MAVRIDIS, PG
    [J]. JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1976, 73 (02) : 156 - 162