Theoretical Prediction of the Water Activity of Standard Saturated Salt Solutions at Various Temperatures

A theoretical approach was used to predict the water activity (aw) at 15°C and 35°C of selected saturated salt solutions used as standards in the range of microbial growth (∼0.57–0.97). For this purpose a rigorous thermodynamic model to predict osmotic coefficient was used. The results agreed very w...

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Autores principales: Kitic, Dora, Favetto, Guillermo Julio, Resnik, Silvia Liliana
Publicado: 1986
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221147_v51_n4_p1037_Kitic
http://hdl.handle.net/20.500.12110/paper_00221147_v51_n4_p1037_Kitic
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00221147_v51_n4_p1037_Kitic
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spelling paper:paper_00221147_v51_n4_p1037_Kitic2023-06-08T14:46:09Z Theoretical Prediction of the Water Activity of Standard Saturated Salt Solutions at Various Temperatures Kitic, Dora Favetto, Guillermo Julio Resnik, Silvia Liliana A theoretical approach was used to predict the water activity (aw) at 15°C and 35°C of selected saturated salt solutions used as standards in the range of microbial growth (∼0.57–0.97). For this purpose a rigorous thermodynamic model to predict osmotic coefficient was used. The results agreed very well with experimental measurements at 15°C and 35°C for most salts studied, which included NaBr, NaCl, (NH4)2SO4, KCl, BaCl2, and K2SO4. For KNO3 the agreement at the higher temperature was somewhat less satisfactory and the reasons for this behavior are discussed. Copyright © 1986, Wiley Blackwell. All rights reserved Fil:Kitic, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Favetto, G.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Resnik, S.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1986 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221147_v51_n4_p1037_Kitic http://hdl.handle.net/20.500.12110/paper_00221147_v51_n4_p1037_Kitic
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description A theoretical approach was used to predict the water activity (aw) at 15°C and 35°C of selected saturated salt solutions used as standards in the range of microbial growth (∼0.57–0.97). For this purpose a rigorous thermodynamic model to predict osmotic coefficient was used. The results agreed very well with experimental measurements at 15°C and 35°C for most salts studied, which included NaBr, NaCl, (NH4)2SO4, KCl, BaCl2, and K2SO4. For KNO3 the agreement at the higher temperature was somewhat less satisfactory and the reasons for this behavior are discussed. Copyright © 1986, Wiley Blackwell. All rights reserved
author Kitic, Dora
Favetto, Guillermo Julio
Resnik, Silvia Liliana
spellingShingle Kitic, Dora
Favetto, Guillermo Julio
Resnik, Silvia Liliana
Theoretical Prediction of the Water Activity of Standard Saturated Salt Solutions at Various Temperatures
author_facet Kitic, Dora
Favetto, Guillermo Julio
Resnik, Silvia Liliana
author_sort Kitic, Dora
title Theoretical Prediction of the Water Activity of Standard Saturated Salt Solutions at Various Temperatures
title_short Theoretical Prediction of the Water Activity of Standard Saturated Salt Solutions at Various Temperatures
title_full Theoretical Prediction of the Water Activity of Standard Saturated Salt Solutions at Various Temperatures
title_fullStr Theoretical Prediction of the Water Activity of Standard Saturated Salt Solutions at Various Temperatures
title_full_unstemmed Theoretical Prediction of the Water Activity of Standard Saturated Salt Solutions at Various Temperatures
title_sort theoretical prediction of the water activity of standard saturated salt solutions at various temperatures
publishDate 1986
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221147_v51_n4_p1037_Kitic
http://hdl.handle.net/20.500.12110/paper_00221147_v51_n4_p1037_Kitic
work_keys_str_mv AT kiticdora theoreticalpredictionofthewateractivityofstandardsaturatedsaltsolutionsatvarioustemperatures
AT favettoguillermojulio theoreticalpredictionofthewateractivityofstandardsaturatedsaltsolutionsatvarioustemperatures
AT resniksilvialiliana theoreticalpredictionofthewateractivityofstandardsaturatedsaltsolutionsatvarioustemperatures
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