Mean activity coefficients in the NaCl-NH4HCO3-H2O system at 293.15-308.15 K

被引：5
|
作者：
Ji, XY
Lu, XH [1 ]
Lin, WL
Zhang, LZ
Wang, YR
Shi, J
Lu, BCY
机构：
[1] Nanjing Univ Chem Technol, Dept Chem Engn, Nanjing 210009, Peoples R China
[2] Univ Ottawa, Dept Chem Engn, Ottawa, ON K1N 6N5, Canada
来源：
FLUID PHASE EQUILIBRIA | 2001年 / 178卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
activity coefficients; ion-selective electrode; aqueous solution; weak electrolyte; mixture; data;
D O I：
10.1016/S0378-3812(00)00469-6
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The mean activity coefficients of NaCl in the NaCl-NH4HCO3-H2O system, measured by an electrochemical cell using ion-selective electrodes, were used to calculate the mean activity coefficients of NH4HCO3 in the system through a thermodynamic model. The measurements were made at four temperatures from 293.15 to 308.15 K up to 1.8 mol kg(-1), at NH4HCO3 molality fractions of 0.2 and 0.4. Both sets of values agree with those obtained from Pitzer equation incorporated with chemical reactions. This observation supports the applicability of the existing parameters for calculating mean activity coefficients of this system. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：259 / 270
页数：12
相关论文
共 50 条
  • [41] Mean Activity Coefficients of NaCl in the Ternary System NaCl-SrCl2-H2O at 288.15 K Determined by the Cell Potential Method and Their Application to the Prediction of Phase Equilibria
    Ren, Hong-Bao
    Sang, Shi-Hua
    Cui, Rui-Zhi
    Liu, Xing
    Ge, Qi
    JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2024, 70 (01): : 208 - 218
  • [42] Mean Ionic Activity Coefficients and Dissociation Constant of HCl in the System HCl-H2SO4-H2O at 298 K
    G. M. Poltoratskii
    S. V. Semenov
    Russian Journal of General Chemistry, 2002, 72 : 1508 - 1511
  • [43] Mean ionic activity coefficients and dissociation constant of HCl in the system HCl-H2SO4-H2O at 298 K
    Poltoratskii, GM
    Semenov, SV
    RUSSIAN JOURNAL OF GENERAL CHEMISTRY, 2002, 72 (10) : 1508 - 1511
  • [44] NACL-NH4CL-NH3-CO2-H2O SYSTEM AT P=1 ATM
    GINZBURG, DM
    MARKEL, SA
    DETINICH, LP
    ZHURNAL PRIKLADNOI KHIMII, 1972, 45 (08) : 1687 - &
  • [45] (NH4)2HPO4-NH4H2PO4-K2S2O3-H2O SYSTEM
    BABENKO, AM
    ANDRIANOV, AM
    ZHURNAL NEORGANICHESKOI KHIMII, 1984, 29 (10): : 2668 - 2671
  • [46] Water activities, osmotic and activity coefficients of the system (NH4)2SO4-K2SO4-H2O at the temperature 298.15 K
    El Guendouzi, M
    Azougen, R
    Mounir, A
    Benbiyi, A
    CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2003, 27 (04): : 409 - 414
  • [47] Phase diagram for the system KVO3+NH4HCO3+NH4VO3+KHCO3+H2Oat303K
    Trypuc, M
    Kielkowska, U
    FLUID PHASE EQUILIBRIA, 2005, 230 (1-2) : 99 - 104
  • [48] Studies on Mutual Solubility of Salts in the NH4HCO3-(NH4)2SO4-H2O System
    Druzynski, Sebastian
    Wrobel-Kaszanek, Adriana
    Mazurek, Krzysztof
    Kielkowska, Urszula
    JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2019, 64 (08): : 3457 - 3464
  • [49] ISOHYDRES OF THE RECIPROCAL SYSTEM NA+-NH4+-HCO3(-)-CL(-)-H2O
    FILIPESCU, L
    MOCIOI, M
    MUNTEANU, M
    REVISTA DE CHIMIE, 1981, 32 (02): : 190 - 191
  • [50] Solubility measurements in Na-F-CO3-HCO3-H2O system at (308.15 and 323.15) K and development of a Pitzer-based equilibrium model for the Na-F-Cl-SO4-CO3-HCO3-H2O system
    Wang, Linjun
    Zhang, Wei
    Yang, Bin
    Cai, Yi
    Yi, Junnian
    JOURNAL OF CHEMICAL THERMODYNAMICS, 2019, 131 : 88 - 96
12345