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MOREL. Can. J. Chem. 56,552 (1978). The thermodynamic pair interaction parameters of the ternary systems electrolyte (alkali halides and tetraalkylammonium bromides) -nonelectrolyte (12-alcohols and rerr-butylalcohol) -water were measured at 25°C through enthalpies of solution, of mixing and of dilution, densities and heat capacities per unit volume. Some freezing point and electromotive force data were also combined with previously published data to obtain free energies. From these pair parameters the complete thermodynamics of the salting in and salting out of alcohols can be derived and were used to test various theoretical approaches. Most results are consistent with the cosphere overlap structural model, and the various trends can also be correlated through the scaledparticle theory. Chem. 56,552 (1978).Des mesures, effectutes a 2S°C, d'enthalpie de dissolution, de melange et de dilution, de densitt et de capacite calorifique permettent le calcul des parametres thermodynamiques d'interaction par paire dans les systttmes ternaires: electrolyte (halogenures alcalins, bromure de tetraalkylamnionium) -non-tlectrolyte (alcools norniaux et alcool fert-butylique) -eau. Certaines Inesures d'abaissement du point de fusion et de force electroniotrice conduisent, en utilisant des rtsultats deja publits, aux valeurs des enthalpies libres. Des parametres d'interaction par paire, on peut deduire la thermodynamique coniplete du relargage des alcools et verifier diverses theories. Les rtsultats proposes sont en accord avec ceux prtvus par le modele structural de recouvrenient des cospheres d'hydratation. L'allure des variations des differentes grandeurs peut aussi itre prtdite par la thtorie des particules calibrees (scaled particle).

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