Thermodynamic study of the Na-Cu-Cl-SO4-H2O system at the temperature 298.15 K

被引：25

作者：

Christov, C ^{[1
]}

机构：

[1] Bulgarian Acad Sci, Inst Gen & Inorgan Chem, BU-1113 Sofia, Bulgaria

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2000年 / 32卷 / 03期

关键词：

solubility diagram; thermodynamic functions; Pitzer model;

D O I：

10.1006/jcht.1999.0564

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The molalities m of (m(1)CuCl(2) + m(2)CuSO(4))(aq) have been investigated in saturated solutions at the temperature 298.15 K by the physico-chemical analysis method. Only the crystallization of the simple salts CuCl2. 2H(2)O, and CuSO4. 5H(2)O have been established. The ternary solutions (m(1)NaCl + m(2)CuCl(2))(aq), (m(1)Na(2)SO(4) + m(2)CuSO(4))(aq), and (m(1)CuCl(2) + m(2)CuSO(4))(aq) have been simulated thermodynamically at T = 298.15 K using the Pitzer model. The ternary parameters of ionic interaction have been chosen on the basis of the compositions of saturated ternary solutions taking into account the unsymmetrical mixing terms. The calculated thermodynamic properties have been used for a thermodynamic study of the quaternary reciprocal system Na-Cu-Cl-SO4-H2O. A very good agreement is found between calculated and experimental solubility isotherms. (C) 2000 Academic Press.

引用

页码：285 / 295

页数：11

共 33 条

[1] THERMODYNAMICS OF FORMATION OF CARNALLITE TYPE DOUBLE SALTS [J].

BALAREW, C ;

CHRISTOV, C ;

VALYASHKO, V ;

PETRENKO, S .

JOURNAL OF SOLUTION CHEMISTRY, 1993, 22 (02) :173-181

[2] Thermodynamic study of the KCl-K2SO4-K2Cr2O7-H2O system at the temperature 298.15K [J].

Christov, C .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 1998, 22 (04) :449-457

[3] CALCULATION OF THE GIBBS ENERGY OF MIXING IN CRYSTALS USING PITZERS MODEL [J].

CHRISTOV, C ;

PETRENKO, S ;

BALAREW, C ;

VALYASHKO, V .

JOURNAL OF SOLUTION CHEMISTRY, 1994, 23 (07) :795-812

[4] Thermodynamics of formation of double salts in the systems CsCl-MCl(2)-H2O where M denotes Mn, Co, or Cu [J].

Christov, C ;

Petrenko, S .

ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS, 1996, 194 :43-50

[5] Study of (m1KCl+m2MeCl2)(aq) and (m1,K2SO4+m2MeSO4)(aq) where m denotes molality and Me denotes Cu, or Ni at the temperature 298.15 K [J].

Christov, C .

JOURNAL OF CHEMICAL THERMODYNAMICS, 1999, 31 (01) :71-83

[6] Thermodynamic study of the CuCl2-MCl(2)-H2O systems (M=Mg, Co) at 298.15 K [J].

Christov, C .

COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, 1996, 61 (04) :507-511

[7] Thermodynamics of the aqueous sodium and magnesium bromide system at the temperatures 273.15 K and 298.15 K [J].

Christov, C .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 1996, 20 (04) :501-509

[8] Thermodynamic study of the co-crystallization of 2RbCl center dot NiCl2 center dot 2H(2)O and 2RbCl center dot MnCL(2)center dot 2H(2)O, at the temperature 298.15 K [J].

Christov, C .

JOURNAL OF CHEMICAL THERMODYNAMICS, 1996, 28 (07) :743-752

[9] A simplified model for calculation of the Gibbs energy of mixing in crystals: Thermodynamic theory, restrictions and applicability [J].

Christov, C .

COLLECTION OF CZECHOSLOVAK CHEMICAL COMMUNICATIONS, 1996, 61 (11) :1585-1599

[10] THERMODYNAMIC STUDY OF (B(1)LIBR+B(2)MGBR(2))(AQ), WHERE B DENOTES MOLALITY, AT THE TEMPERATURE 348.15 K [J].

CHRISTOV, C .

JOURNAL OF CHEMICAL THERMODYNAMICS, 1995, 27 (11) :1267-1273

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