Measurement and Correlation of Solid−Liquid Equilibria of 18-Crown-6 in Alcohols. 1

Urszula Domańska-Żelazna , P. Venkatesu

Abstract

The solid?liquid equilibria of 13 binary mixtures of 1,4,7,10,13,16-hexaoxaoctadecane (18-crown-6) in alcohols (methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, tert-butyl alcohol, 1-pentanol, 1-hexanol, 1-heptanol, 1-octanol, 1-nonanol, and 1-dodecanol) have been determined experimentally by a dynamic method in temperature range from 275 K to the melting temperature of 18-crown-6. The results of solubility have been correlated by the Wilson, NRTL 1, and UNIQUAC equations. The existence of solid?solid first-order phase transition in 18-crown-6 has been taken into consideration in the solubility calculations. The best correlations of the solubility data have been obtained by the Wilson equation, where the average root-mean-square deviation of the solubility temperature is 0.45 K.
Author Urszula Domańska-Żelazna ZChF
Urszula Domańska-Żelazna,,
- Department Of Physical Chemistry
, P. Venkatesu
P. Venkatesu,,
-
Journal seriesJournal of Chemical and Engineering Data, ISSN 0021-9568
Issue year1998
Vol43
No6
Pages919-924
DOIDOI:10.1021/je980088k
URL http://dx.doi.org/10.1021/je980088k
Languageen angielski
Score (nominal)35
Publication indicators WoS Impact Factor: 2006 = 1.642 (2) - 2007=1.775 (5)
Citation count*15 (2013-01-30)
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