Phase Equilibria of Alkali Nitrates (NaNO3, KNO3, RbNO3, CsNO3)in Glycerol + H2O System at Various Temperatures

Zhang, H.-Y.; Li, S.-N.; Zhai, Q.-G.; Ou, Y.-M.; Jiang, Y.-C.; Hu, M.-C.

doi:10.15255/KUI.2013.015

Kemija u Industriji (May 2014)

Phase Equilibria of Alkali Nitrates (NaNO3, KNO3, RbNO3, CsNO3)in Glycerol + H2O System at Various Temperatures

Zhang, H.-Y.,
Li, S.-N.,
Zhai, Q.-G.,
Ou, Y.-M.,
Jiang, Y.-C. ,
Hu, M.-C.

Affiliations

Zhang, H.-Y.: Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an, Shaanxi, 710 062
Li, S.-N.: Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an, Shaanxi, 710 062
Zhai, Q.-G.: Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an, Shaanxi, 710 062
Ou, Y.-M.: Department of Chemistry and Life Science, Hechi University, Yizhou, Guangxi, 546 300
Jiang, Y.-C.: Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an, Shaanxi, 710 062
Hu, M.-C.: Key Laboratory of Macromolecular Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an, Shaanxi, 710 062

DOI: https://doi.org/10.15255/KUI.2013.015
Journal volume & issue: Vol. 63, no. 5-6
pp. 155 – 162

Abstract

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By using a homemade research device for phase equilibrium, the equilibrium solubility of the alkali nitrates (NaNO3/KNO3/RbNO3/CsNO3) in the mixed solvent glycerol [HOCH2CH(OH)CH2OH] + H2O in the mass fraction range of glycerol (0.0 to 1.0) at 35 and 45 °C was measured. Moreover, the density and refractive index of the saturated solutions of NaNO3/KNO3/RbNO3/CsNO3 + mixed solvent glycerol + H2O were determined. The experimental results showed that, in all systems, with the increase of mass fraction of glycerol, the solubility of the salts and the density of the solution decreased, while the refractive index increased gradually. The solubility, refractive index, and density data were fitted by a four-parameter empirical equation.

Published in Kemija u Industriji

ISSN: 0022-9830 (Print); 1334-9090 (Online)
Publisher: Croatian Society of Chemical Engineers
Country of publisher: Croatia
LCC subjects: Science: Chemistry
Website: http://www.hdki.hr/kui

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