A note about the correct water activity value of saturated potassium nitrate at 25 °C

A re-evaluation of the water activity (aw) of saturated solution of KNO3 was performed in view of the discrepancy which exists on its exact aw value. Four different brands of KNO3 were used and ten determinations of aw were made for each one. The resulting mean value and its confidence interval (95%...

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Autores principales: Pollio, María Lucía, Kitic, Dora, Favetto, Guillermo Julio
Publicado: 1988
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00236438_v21_n1_p66_Pollio
http://hdl.handle.net/20.500.12110/paper_00236438_v21_n1_p66_Pollio
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00236438_v21_n1_p66_Pollio
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spelling paper:paper_00236438_v21_n1_p66_Pollio2023-06-08T14:51:32Z A note about the correct water activity value of saturated potassium nitrate at 25 °C Pollio, María Lucía Kitic, Dora Favetto, Guillermo Julio A re-evaluation of the water activity (aw) of saturated solution of KNO3 was performed in view of the discrepancy which exists on its exact aw value. Four different brands of KNO3 were used and ten determinations of aw were made for each one. The resulting mean value and its confidence interval (95% level) was 0.927 ± 0.001. This result, which agrees with a previous theoretical prediction of aw in saturated KNO3, indicates that the value 0.936 used by many authors should no longer be used. © 1988 Academic Press Limited. Fil:Pollio, M.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Kític, 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. 1988 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00236438_v21_n1_p66_Pollio http://hdl.handle.net/20.500.12110/paper_00236438_v21_n1_p66_Pollio
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 re-evaluation of the water activity (aw) of saturated solution of KNO3 was performed in view of the discrepancy which exists on its exact aw value. Four different brands of KNO3 were used and ten determinations of aw were made for each one. The resulting mean value and its confidence interval (95% level) was 0.927 ± 0.001. This result, which agrees with a previous theoretical prediction of aw in saturated KNO3, indicates that the value 0.936 used by many authors should no longer be used. © 1988 Academic Press Limited.
author Pollio, María Lucía
Kitic, Dora
Favetto, Guillermo Julio
spellingShingle Pollio, María Lucía
Kitic, Dora
Favetto, Guillermo Julio
A note about the correct water activity value of saturated potassium nitrate at 25 °C
author_facet Pollio, María Lucía
Kitic, Dora
Favetto, Guillermo Julio
author_sort Pollio, María Lucía
title A note about the correct water activity value of saturated potassium nitrate at 25 °C
title_short A note about the correct water activity value of saturated potassium nitrate at 25 °C
title_full A note about the correct water activity value of saturated potassium nitrate at 25 °C
title_fullStr A note about the correct water activity value of saturated potassium nitrate at 25 °C
title_full_unstemmed A note about the correct water activity value of saturated potassium nitrate at 25 °C
title_sort note about the correct water activity value of saturated potassium nitrate at 25 °c
publishDate 1988
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00236438_v21_n1_p66_Pollio
http://hdl.handle.net/20.500.12110/paper_00236438_v21_n1_p66_Pollio
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