Water activities, osmotic and activity coefficients of the system (NH4)2SO4-K2SO4-H2O at the temperature 298.15 K

被引：8

作者：

El Guendouzi, M ^{[1
]}

Azougen, R ^{[1
]}

Mounir, A ^{[1
]}

Benbiyi, A ^{[1
]}

机构：

[1] Univ Hassan II Mohammedia, Chim Phys Lab, Dept Chim, Fac Sci Ben Msik, Casablanca, Morocco

来源：

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2003年 / 27卷 / 04期

关键词：

D O I：

10.1016/j.calphad.2004.02.002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The mixed aqueous electrolyte system consisting of ammonium and potassium sulfates has been studied using the hygrometric method at the temperature 298.15 K. The water activities are measured at total ionic strength values ranging from 0.60 to 8.25 mol kg(-1) for different ionic strength fractions (y) of (NH4)(2)SO4 with y = 0.20, 0.50 and 0.80. The obtained data allow the deduction of osmotic coefficients. The experimental results are compared with the predictions of the Zdanovskii-Stokes-Robinson (ZSR), Kusik and Meissner (KM), Robinson and Stokes (RS). Lietzke and Stoughton (LS II), Reilly-Wood and Robinson (RWR) and Pitzer models. From these measurements, the new Pitzer mixing ionic parameters are determined and used to predict the solute activity coefficients in the mixture. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：409 / 414

页数：6

共 50 条

[31] Phase equilibrium of the quaternary system K2SO4-MgSO4-(NH4)2SO4-H2O at 25 °C [J].

Xue, Chun-Yan ;

Zhao, Bin ;

Guo, Hong-Fei ;

Dou, Shuai-Yong ;

Cao, Ji-Lin .

FLUID PHASE EQUILIBRIA, 2016, 408 :115-122

[32] Hygrometric determination of water activities, and osmotic and activity coefficients of NH4Cl-CaCl2-H2O at T=298.15 K [J].

Dinane, A ;

Mounir, A .

JOURNAL OF CHEMICAL THERMODYNAMICS, 2005, 37 (03) :259-265

[33] X-RAY STUDY OF FERROELECTRIC BEHAVIOR IN THE MIXED-CRYSTALS (NH4)2SO4-K2SO4, (NH4)2SO4-RB2SO4, (NH4)2SO4-CS2SO4 [J].

SHIOZAKI, Y ;

ONODERA, A ;

YOSHIDA, M ;

TAKAHASHI, I .

FERROELECTRICS, 1989, 96 :73-77

[34] Solubility diagrams of Na2SO4-Rb2SO4-MgSO4-H2O, Na2SO4-Cs2SO4-MgSO4-H2O, and K2SO4-Cs2SO4-MgSO4-H2O at 298.15 K [J].

Wang, F. Y. .

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2017, 62 (08) :1111-1115

[35] Isopiestic Measurements of Water Activity for the H2SO4-H3PO4-H2O System at 298.15 K [J].

Yang, Haitang ;

Zhao, Zhongwei ;

Zeng, Dewen ;

Yin, Ruiming .

JOURNAL OF SOLUTION CHEMISTRY, 2016, 45 (11) :1580-1587

[36] WATER AND SOLUTE ACTIVITIES IN THE AQUEOUS H2SO4-(NH4)2SO4 SOLUTIONS [J].

PARK, SK ;

AWAKURA, Y ;

MAJIMA, H .

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1989, 20 (01) :13-20

[37] A GENERALIZED MULTICOMPONENT THERMODYNAMIC MODEL APPLIED TO THE (NH4)(2)SO4-H2SO4-H2O SYSTEM TO HIGH SUPERSATURATION AND LOW RELATIVE-HUMIDITY AT 298.15 K [J].

CLEGG, SL ;

BRIMBLECOMBE, P .

JOURNAL OF AEROSOL SCIENCE, 1995, 26 (01) :19-38

[38] SOLUBILITY IN THE SYSTEM K2SO4-H2SO4-H2O. [J].

Buksha, S.V. ;

Sokolov, I.D. ;

Kopylev, B.A. ;

Buksha, Yu.V. .

1600, (59)

[39] SOLUBILITY IN THE SYSTEM K2SO4-H2SO4-H2O [J].

BUKSHA, SV ;

SOKOLOV, ID ;

KOPYLEV, BA ;

BUKSHA, YV .

JOURNAL OF APPLIED CHEMISTRY OF THE USSR, 1986, 59 (10) :2072-2076

[40] K2SO4-(NH4)2SO4-ZNSO4-H2O SYSTEM AT 25 DEGREES C AND 75 DEGREES C [J].

SHEVCHUK, VG ;

PILIPCHE.VN .

ZHURNAL NEORGANICHESKOI KHIMII, 1970, 15 (01) :215-&

← 1 2 3 4 5 →