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Comparison among pitzer-type models for the osmotic and activity coefficients of strong electrolyte solutions at 298.15 K / F. Perez-Villasenor in Industrial & engineering chemistry research, Vol. 50 N° 18 (Septembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 18 (Septembre 2011) . - pp 10894–10901 Titre : Comparison among pitzer-type models for the osmotic and activity coefficients of strong electrolyte solutions at 298.15 K Type de document : texte imprimé Auteurs : F. Perez-Villasenor, Auteur ; S. Carro-Sanchez, Auteur Année de publication : 2011 Article en page(s) : pp 10894–10901 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Thermodynamic  properties  Electrolyte  solution  Strong  electrolyte  Activity  coefficient  Modeling Résumé : In this work three Pitzer-type models were compared: the original one, the Archer model (an extended Pitzer model) with ionic strength dependence in the third virial coefficient, and the PIH model that uses as an adjusting parameter the closest approach constant. The performance of these models in correlating the osmotic and activity coefficient of 1:1, 1:2, 1:3, 1:4, 2:1, 2:2, 3:1, 3:2, and 4:1 aqueous electrolyte solutions was tested using experimental data sets for 245 single electrolyte aqueous solutions. The absolute average percentage deviations were 0.78, 1.18, and 3.56% for the Archer, PIH, and Pitzer models, respectively. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24523909 [article] Comparison among pitzer-type models for the osmotic and activity coefficients of strong electrolyte solutions at 298.15 K [texte imprimé] / F. Perez-Villasenor, Auteur ; S. Carro-Sanchez, Auteur . - 2011 . - pp 10894–10901. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 18 (Septembre 2011) . - pp 10894–10901 Mots-clés : Thermodynamic  properties  Electrolyte  solution  Strong  electrolyte  Activity  coefficient  Modeling Résumé : In this work three Pitzer-type models were compared: the original one, the Archer model (an extended Pitzer model) with ionic strength dependence in the third virial coefficient, and the PIH model that uses as an adjusting parameter the closest approach constant. The performance of these models in correlating the osmotic and activity coefficient of 1:1, 1:2, 1:3, 1:4, 2:1, 2:2, 3:1, 3:2, and 4:1 aqueous electrolyte solutions was tested using experimental data sets for 245 single electrolyte aqueous solutions. The absolute average percentage deviations were 0.78, 1.18, and 3.56% for the Archer, PIH, and Pitzer models, respectively. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24523909