TY - JOUR
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 - activity coefficients
KW - excess free energy of mixing
KW - interaction coefficients
KW - KCl
KW - MgCl
KW - mixed salt solutions
KW - NaCl
KW - Osmotic coefficients
UR - http://www.scopus.com/inward/record.url?scp=0008998189&partnerID=8YFLogxK
U2 - 10.1007/BF01074740
DO - 10.1007/BF01074740
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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 -