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Hydration of urea and its derivatives - Volumetric and compressibility studies

Abstract

The densities and sound velocities at T = (288.15, 293.15, 298.15, 303.15 and 308.15) K have been measured for aqueous solutions of urea, N,N-dimethylurea, N,N-diethylurea, N-propylurea, N-butylurea. From these data the apparent molar volumes, V the apparent molar isentropic compressions, KS,, and the Passynski solvation numbers of solutes have been determined. The concentration dependencies of the calculated quantities, their limiting values and temperature characteristics are discussed in terms of solute-solvent and solute-solute interactions.

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Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
JOURNAL OF CHEMICAL THERMODYNAMICS no. 79, pages 109 - 117,
ISSN: 0021-9614
Language:
English
Publication year:
2014
Bibliographic description:
Krakowiak J., Wawer J.: Hydration of urea and its derivatives - Volumetric and compressibility studies// JOURNAL OF CHEMICAL THERMODYNAMICS. -Vol. 79, (2014), s.109-117
Verified by:
Gdańsk University of Technology

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