Thermodynamics of mixed electrolyte solutions. VI. An isopiestic study of a pseudo-ternary system: NaCl-KCl-MgCl2-H2O at 25°C

D. Saad; J. Padova; Y. Marcus

doi:10.1007/BF01074740

Thermodynamics of mixed electrolyte solutions. VI. An isopiestic study of a pseudo-ternary system: NaCl-KCl-MgCl₂-H₂O at 25°C

D. Saad^*
, J. Padova
, Y. Marcus

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

Activity coefficients for magnesium chloride in the aqueous pseudo-ternary system sodium chloride-potassium chloride-magnesium chloride were derived from isopiestic measurements at 25°C. The isopiestic data were treated by both McKay-Perring and Scatchard methods, and results obtained agree fairly well over the ionic strength range of 1-6. At constant ionic strength, the activity coefficient of MgCl₂ increased with addition of other salts. Interaction coefficients were obtained from Scatchard's and Friedman's formalisms. The excess free energy of mixing was calculated and compared with similar systems.

Original language	English
Pages (from-to)	983-993
Number of pages	11
Journal	Journal of Solution Chemistry
Volume	4
Issue number	12
DOIs	https://doi.org/10.1007/BF01074740
State	Published - Dec 1975

Keywords

KCl
MgCl
NaCl
Osmotic coefficients
activity coefficients
excess free energy of mixing
interaction coefficients
mixed salt solutions

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10.1007/BF01074740

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title = "Thermodynamics of mixed electrolyte solutions. VI. An isopiestic study of a pseudo-ternary system: NaCl-KCl-MgCl2-H2O at 25°C",

abstract = "Activity coefficients for magnesium chloride in the aqueous pseudo-ternary system sodium chloride-potassium chloride-magnesium chloride were derived from isopiestic measurements at 25°C. The isopiestic data were treated by both McKay-Perring and Scatchard methods, and results obtained agree fairly well over the ionic strength range of 1-6. At constant ionic strength, the activity coefficient of MgCl2 increased with addition of other salts. Interaction coefficients were obtained from Scatchard's and Friedman's formalisms. The excess free energy of mixing was calculated and compared with similar systems.",

keywords = "KCl, MgCl, NaCl, Osmotic coefficients, activity coefficients, excess free energy of mixing, interaction coefficients, mixed salt solutions",

author = "D. Saad and J. Padova and Y. Marcus",

year = "1975",

month = dec,

doi = "10.1007/BF01074740",

language = "אנגלית",

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pages = "983--993",

journal = "Journal of Solution Chemistry",

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T1 - Thermodynamics of mixed electrolyte solutions. VI. An isopiestic study of a pseudo-ternary system

T2 - NaCl-KCl-MgCl2-H2O at 25°C

AU - Saad, D.

AU - Padova, J.

AU - Marcus, Y.

PY - 1975/12

Y1 - 1975/12

N2 - Activity coefficients for magnesium chloride in the aqueous pseudo-ternary system sodium chloride-potassium chloride-magnesium chloride were derived from isopiestic measurements at 25°C. The isopiestic data were treated by both McKay-Perring and Scatchard methods, and results obtained agree fairly well over the ionic strength range of 1-6. At constant ionic strength, the activity coefficient of MgCl2 increased with addition of other salts. Interaction coefficients were obtained from Scatchard's and Friedman's formalisms. The excess free energy of mixing was calculated and compared with similar systems.

AB - Activity coefficients for magnesium chloride in the aqueous pseudo-ternary system sodium chloride-potassium chloride-magnesium chloride were derived from isopiestic measurements at 25°C. The isopiestic data were treated by both McKay-Perring and Scatchard methods, and results obtained agree fairly well over the ionic strength range of 1-6. At constant ionic strength, the activity coefficient of MgCl2 increased with addition of other salts. Interaction coefficients were obtained from Scatchard's and Friedman's formalisms. The excess free energy of mixing was calculated and compared with similar systems.

KW - KCl

KW - MgCl

KW - NaCl

KW - Osmotic coefficients

KW - activity coefficients

KW - excess free energy of mixing

KW - interaction coefficients

KW - mixed salt solutions

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AN - SCOPUS:0008998189

SN - 0095-9782

VL - 4

SP - 983

EP - 993

JO - Journal of Solution Chemistry

JF - Journal of Solution Chemistry

IS - 12

ER -

Thermodynamics of mixed electrolyte solutions. VI. An isopiestic study of a pseudo-ternary system: NaCl-KCl-MgCl₂-H₂O at 25°C

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Keywords

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