CALORIMETRIC INVESTIGATIONS OF NACL, NAI AND UREA SOLUTIONS IN WATER-1,2-DIMETHOXYETHANE MIXTURES

Authors
PIEKARSKI H TKACZYK M WALISZEWSKI D
Citation
H. Piekarski et al., CALORIMETRIC INVESTIGATIONS OF NACL, NAI AND UREA SOLUTIONS IN WATER-1,2-DIMETHOXYETHANE MIXTURES, Thermochimica acta, 259(2), 1995, pp. 199-205
Citations number
24
Categorie Soggetti
Chemistry Analytical
Journal title
Thermochimica acta → ACNP
ISSN journal
00406031
Volume
259
Issue
2
Year of publication
1995
Pages
199 - 205
Database
ISI
SICI code
0040-6031(1995)259:2<199:CIONNA>2.0.ZU;2-I
Abstract
Enthalpies of solution Delta(sol)H(circle minus) of NaI, NaCl and urea in water-1,2-dimethoxyethane (DME) mixtures at 25 degrees C were meas ured. The enthalpies of solution for NaCl, NaI and urea exhibit a maxi mum within the water-rich region. NaI and urea show a minimum in the r ange of high DME content. The maxima are apparently due to the hydroph obic hydration of DME molecules. The minima can be explained as a resu lt of competition between water and DME molecules in the solute solvat ion shell.