Vapor pressures, osmotic and activity coefficients of electrolytes in protic solvents at different temperatures. 2. Lithium bromide in ethanol

被引：27

作者：

Nasirzadeh, K ^{[1
]}

Neueder, R

Kunz, W

机构：

[1] Univ Regensburg, Inst Phys & Theoret Chem, D-93040 Regensburg, Germany

[2] Azarbaijan Univ Tarbiat Moallem, Dept Chem, Tabriz, Iran

来源：

JOURNAL OF SOLUTION CHEMISTRY | 2004年 / 33卷 / 11期

关键词：

vapor pressure; osmotic coefficient; activity coefficient; Pitzer model; MSA-NRTL model; chemical model; ethanol; lithium bromide;

D O I：

10.1007/s10953-004-1057-9

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：

Precise vapor pressure data for LiBr solutions in ethanol are given for temperatures ranging from 298.15 to 348.15 K. The molality range investigated is from 0.0705 to 3.4451 mol-kg(-1). Osmotic coefficients are calculated by taking into account the second virial coefficient of ethanol. The parameters of the extended Pitzer ion-interaction model of Archer, the MSA-NRTL model, and the chemical model of Barthel are evaluated and discussed. The parameters of the extended Pitzer ion-interaction model of Archer are used to calculate the mean molal activity coefficients. Osmotic and activity coefficients both decrease with increasing temperature in this temperature range.

引用

页码：1429 / 1446

页数：18

共 19 条

[1] Isopiestic investigation of the osmotic and activity coefficients of aqueous MgSO4 and the solubility of MgSO4•7H2O(cr) at 298.15 K:: Thermodynamic properties of the MgSO4+H2O system to 440 K [J].

Archer, DG ;

Rard, JA .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1998, 43 (05) :791-806

[2] THERMODYNAMIC PROPERTIES OF THE NABR + H2O SYSTEM [J].

ARCHER, DG .

JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1991, 20 (03) :509-555

[3] THERMODYNAMIC PROPERTIES OF THE NACL+H2O SYSTEM .2. THERMODYNAMIC PROPERTIES OF NACL(AQ), NACL.2H2O(CR), AND PHASE-EQUILIBRIA [J].

ARCHER, DG .

JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1992, 21 (04) :793-829

[4] Osmotic and activity coefficients of nonaqueous electrolyte solutions. 1. Lithium perchlorate in the protic solvents methanol, ethanol, and 2-propanol [J].

Barthel, J ;

Neueder, R ;

Poepke, H ;

Wittmann, H .

JOURNAL OF SOLUTION CHEMISTRY, 1998, 27 (12) :1055-1066

[5]

BARTHEL J, 1992, ELECTROLYTE DATA COL, V12

[6]

BARTHEL JMG, 1998, PHYS CHEM ELECT SOLU

[7] MEAN SPHERICAL MODEL FOR ASYMMETRIC ELECTROLYTES .1. METHOD OF SOLUTION [J].

BLUM, L .

MOLECULAR PHYSICS, 1975, 30 (05) :1529-1535

[8]

CHEN CC, 1982, AICHE J, V28, P4

[9] Osmotic and activity coefficients of strongly associated electrolytes over large concentration ranges from chemical model calculations [J].

Krienke, H ;

Barthel, J ;

Holovko, M ;

Protsykevich, I ;

Kalyushnyi, Y .

JOURNAL OF MOLECULAR LIQUIDS, 2000, 87 (2-3) :191-216

[10] MEASUREMENT OF VAPOR-PRESSURES OF ELECTROLYTE-SOLUTIONS BY VAPOR-PRESSURE OSMOMETRY [J].

MATO, F ;

COCERO, MJ .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1988, 33 (01) :38-39

← 1 2 →