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- Title
Phase Equilibria of Alkali Nitrates (NaNO<sub>3</sub>, KNO<sub>3</sub>, RbNO<sub>3</sub>, CsNO<sub>3</sub>) in Glycerol + H<sub>2</sub>O System at Various Temperatures.
- Authors
H.-Y. Zhang; S.-N. Li; Q.-G. Zhai; Y.-M. Ou; Y.-C. Jiang; M.-C. Hu
- Abstract
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.
- Subjects
PHASE equilibrium; SOLUBILITY; SOLVENTS; GLYCERIN; REFRACTIVE index
- Publication
Kemija u Industriji, 2014, Vol 63, Issue 5/6, p155
- ISSN
0022-9830
- Publication type
Article
- DOI
10.15255/KUI.2013.015