Solutions of lithium chloride as reference sources of water activity above 0.6 and between 5°C and 45°C

In view of the uncertainly about the exact water activity (aw) of some saturated salt solutions used as reference sources, the use of unsaturated LiCl solutions as isopiestic standards for calibration of aw-measuring devices, is proposed. The ion interaction model of Pitzer and his associates is use...

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Autores principales: Kitic, Dora, Resnik, Silvia Liliana
Publicado: 1986
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00236438_v19_n3_p272_Kitic
http://hdl.handle.net/20.500.12110/paper_00236438_v19_n3_p272_Kitic
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00236438_v19_n3_p272_Kitic
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spelling paper:paper_00236438_v19_n3_p272_Kitic2023-06-08T14:51:29Z Solutions of lithium chloride as reference sources of water activity above 0.6 and between 5°C and 45°C Kitic, Dora Resnik, Silvia Liliana In view of the uncertainly about the exact water activity (aw) of some saturated salt solutions used as reference sources, the use of unsaturated LiCl solutions as isopiestic standards for calibration of aw-measuring devices, is proposed. The ion interaction model of Pitzer and his associates is used to predict the aw of LiCl solutions for the whole range of aw in which microbial growth may occur, and at temperatures between 5 and 45°C. It is shown that there is a very good agreement between different literature experimental aw data and predicted values. The calculated aw data are presented in tabulated form at 0.5% weight intervals and at temperatures between 5 and 45°C. © 1986 Academic Press Inc. (London) Limited. Fil:Kitic, D. 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_00236438_v19_n3_p272_Kitic http://hdl.handle.net/20.500.12110/paper_00236438_v19_n3_p272_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 In view of the uncertainly about the exact water activity (aw) of some saturated salt solutions used as reference sources, the use of unsaturated LiCl solutions as isopiestic standards for calibration of aw-measuring devices, is proposed. The ion interaction model of Pitzer and his associates is used to predict the aw of LiCl solutions for the whole range of aw in which microbial growth may occur, and at temperatures between 5 and 45°C. It is shown that there is a very good agreement between different literature experimental aw data and predicted values. The calculated aw data are presented in tabulated form at 0.5% weight intervals and at temperatures between 5 and 45°C. © 1986 Academic Press Inc. (London) Limited.
author Kitic, Dora
Resnik, Silvia Liliana
spellingShingle Kitic, Dora
Resnik, Silvia Liliana
Solutions of lithium chloride as reference sources of water activity above 0.6 and between 5°C and 45°C
author_facet Kitic, Dora
Resnik, Silvia Liliana
author_sort Kitic, Dora
title Solutions of lithium chloride as reference sources of water activity above 0.6 and between 5°C and 45°C
title_short Solutions of lithium chloride as reference sources of water activity above 0.6 and between 5°C and 45°C
title_full Solutions of lithium chloride as reference sources of water activity above 0.6 and between 5°C and 45°C
title_fullStr Solutions of lithium chloride as reference sources of water activity above 0.6 and between 5°C and 45°C
title_full_unstemmed Solutions of lithium chloride as reference sources of water activity above 0.6 and between 5°C and 45°C
title_sort solutions of lithium chloride as reference sources of water activity above 0.6 and between 5°c and 45°c
publishDate 1986
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00236438_v19_n3_p272_Kitic
http://hdl.handle.net/20.500.12110/paper_00236438_v19_n3_p272_Kitic
work_keys_str_mv AT kiticdora solutionsoflithiumchlorideasreferencesourcesofwateractivityabove06andbetween5cand45c
AT resniksilvialiliana solutionsoflithiumchlorideasreferencesourcesofwateractivityabove06andbetween5cand45c
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