Vapor Pressure of Saturated Aqueous Solutions of Potassium Sulfate from 310 K to 345 K. (22nd November 2011)

• Record Type: Journal Article
• Authors: Maggiolo, Matias O.; Passamonti, Francisco J.; Chialvo, Abel C.
• Other Names: Lucia Angelo Academic Editor.
• Is Part Of: Journal of thermodynamics. Volume 2011(2011)
• Publication Date: 2011-11-22
• Subjects: Thermodynamics -- Periodicals; Thermodynamics; Periodicals; Electronic journals; 536.7
• DOI: 10.1155/2011/432132
• Languages: English
• ISSNs: 1687-9244

Abstract

Abstract : The experimental evaluation of the vapor pressure of saturated aqueous solutions of potassium sulfate was carried out in the range of temperatures310 K ≤ T ≤ 345 K . The experimental data were used to determine the corresponding values of the water activity in such solutions. The analytical expressions as a function of temperature of both, vapor pressure and water activity, were obtained from the correlation of the experimental results. The vapor pressure expression was also extrapolated to a different temperature range in order to make a comparison with the results obtained by other authors.