Authors :
Benjamin A. Jumbo; Ayasen J. Kemeakegha
Volume/Issue :
Volume 5 - 2020, Issue 8 - August
Google Scholar :
http://bitly.ws/9nMw
Scribd :
https://bit.ly/2GwcI8B
DOI :
10.38124/IJISRT20AUG656
Abstract :
Densities of pure liquids and binary mixtures
of diethyl ether (DEE) with 2-alkoxyethanols (2-
methoxyethanol, 2-ethoxyethanol and 2-butoxyethanol)
have been determined over the entire range of solvent
compositions at (293.15, 298.15 and 303.15) K. Excess
molar volumes (VM
E
) have been calculated from the
density data and were fitted into the Redlich-Kister type
polynomial equation to obtain the fitting parameters Ai.
The values of excess molar volumes, vm
E were negative
in regions of low diethyl ether (DEE) composition and
small positive values were observed in regions of high
diethyl ether (DEE) compositions in all the systems
studied. VM
E values were also found to decrease with
increase in temperature and increase in chain length of
the 2-alkoxyethanols. The above trends were attributed
to the combined effects of disruption and formation of
hydrogen bonds between like molecules of 2-
alkoxyethanols and unlike molecules of diethyl ether
(DEE), respectively.
Keywords :
density, excess molar volumes, hydrogen bonding, intermolecular interactions
Densities of pure liquids and binary mixtures
of diethyl ether (DEE) with 2-alkoxyethanols (2-
methoxyethanol, 2-ethoxyethanol and 2-butoxyethanol)
have been determined over the entire range of solvent
compositions at (293.15, 298.15 and 303.15) K. Excess
molar volumes (VM
E
) have been calculated from the
density data and were fitted into the Redlich-Kister type
polynomial equation to obtain the fitting parameters Ai.
The values of excess molar volumes, vm
E were negative
in regions of low diethyl ether (DEE) composition and
small positive values were observed in regions of high
diethyl ether (DEE) compositions in all the systems
studied. VM
E values were also found to decrease with
increase in temperature and increase in chain length of
the 2-alkoxyethanols. The above trends were attributed
to the combined effects of disruption and formation of
hydrogen bonds between like molecules of 2-
alkoxyethanols and unlike molecules of diethyl ether
(DEE), respectively.
Keywords :
density, excess molar volumes, hydrogen bonding, intermolecular interactions
