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Title: Activity coefficients in mixed-electrolyte solutions at 25°C: Na-formate + NaCl system
Authors: Esteso, Miguel A.
Hernandez-Luis, Felipe F.
Fernandez-Merida, Luis
González-Díaz, Oscar M. 
UNESCO Clasification: 2210 Química física
Keywords: Activity coefficients
Sodium formate + NaCl
Aqueous solutions
Issue Date: 1989
Journal: Journal of Solution Chemistry 
Abstract: Activity coefficients for NaCl in aqueous mixtures with Na-Formate were determined at 25°C from emf measurements for different total ionic strengths. At each total ionic strength studied, the measurements were carried out at different ratios of the Na-Formate to NaCl ionic strengths. The experimental activity coefficients were fitted using the Harned equation and the treatments of Scatchard et al. and Pitzer et al. Finally, the excess Gibbs energy of these mixtures was also calculated.
ISSN: 0095-9782
DOI: 10.1007/BF00652988
Source: Journal of Solution Chemistry [ISSN 0095-9782], v. 18 (3), p. 265-276
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