skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Static dielectric constant of solutions of water in n-alcohols at 15, 25, 35, and 45/sup 0/C

Abstract

Dielectric constants (measured at 1 MHz) are reported for solutions of water (concentration range 0 to 0.2 mole fraction) in 1-propanol at 25/sup 0/C, and in 1-butanol, 1-pentanol, and 1-hexanol at 15, 25, 35, and 45/sup 0/C. These results, together with literature values for solutions of water in methanol, ethanol, 1-heptanol, and 1-octanol, show that water interacts with alcohols in at least two ways: (1) it can participate in the formation of dynamic hydrogen-bonded chains, thereby raising the polarizability; (2) it can form relatively stable structures such as H/sub 2/O(ROH)/sub 4/ which have zero net dipole moment and consequently diminish volume polarizability. For C/sub n/H/sub 2n + 1/OH alcohols, n greater than or equal to 4, most of the initially added water forms complexes: consequently, addition of water to these alcohols lowers the dielectric constant.

Authors:
; ;
Publication Date:
Research Org.:
Universita di Palermo, Italy
OSTI Identifier:
6205527
Resource Type:
Journal Article
Journal Name:
J. Solution Chem.; (United States)
Additional Journal Information:
Journal Volume: 8:2
Country of Publication:
United States
Language:
English
Subject:
10 SYNTHETIC FUELS; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALCOHOLS; CHEMICAL REACTIONS; WATER; DIELECTRIC PROPERTIES; BUTANOLS; CHEMICAL BONDS; HEXANOLS; PENTANOLS; PROPANOLS; ELECTRICAL PROPERTIES; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; 090210* - Alcohol Fuels- Properties- (1976-1989); 400201 - Chemical & Physicochemical Properties

Citation Formats

D'Aprano, A., Donato, D.I., and Caponetti, E. Static dielectric constant of solutions of water in n-alcohols at 15, 25, 35, and 45/sup 0/C. United States: N. p., 1979. Web. doi:10.1007/BF00650513.
D'Aprano, A., Donato, D.I., & Caponetti, E. Static dielectric constant of solutions of water in n-alcohols at 15, 25, 35, and 45/sup 0/C. United States. doi:10.1007/BF00650513.
D'Aprano, A., Donato, D.I., and Caponetti, E. Thu . "Static dielectric constant of solutions of water in n-alcohols at 15, 25, 35, and 45/sup 0/C". United States. doi:10.1007/BF00650513.
@article{osti_6205527,
title = {Static dielectric constant of solutions of water in n-alcohols at 15, 25, 35, and 45/sup 0/C},
author = {D'Aprano, A. and Donato, D.I. and Caponetti, E.},
abstractNote = {Dielectric constants (measured at 1 MHz) are reported for solutions of water (concentration range 0 to 0.2 mole fraction) in 1-propanol at 25/sup 0/C, and in 1-butanol, 1-pentanol, and 1-hexanol at 15, 25, 35, and 45/sup 0/C. These results, together with literature values for solutions of water in methanol, ethanol, 1-heptanol, and 1-octanol, show that water interacts with alcohols in at least two ways: (1) it can participate in the formation of dynamic hydrogen-bonded chains, thereby raising the polarizability; (2) it can form relatively stable structures such as H/sub 2/O(ROH)/sub 4/ which have zero net dipole moment and consequently diminish volume polarizability. For C/sub n/H/sub 2n + 1/OH alcohols, n greater than or equal to 4, most of the initially added water forms complexes: consequently, addition of water to these alcohols lowers the dielectric constant.},
doi = {10.1007/BF00650513},
journal = {J. Solution Chem.; (United States)},
number = ,
volume = 8:2,
place = {United States},
year = {1979},
month = {2}
}