Volumetric
and
ultra-acoustic
studies
on
two
imidazolium-based
ionic
liquids,1-Butyl-3
methyl
imidazolium
chloride,
1-Ethyl-3-methyl
ethyl
sulphate
are
carried
out
for
the
present
investigation.
The
effect
of
an
organic
salt,
potassium
dihydrogen
citrate
interactions
ILs
with
water
is
explored
in
terms
apparent
molar
volume
[[EQUATION]],
partial
[[EQUATION]])
expansibility
Compressibility
compressibility
behaviour
solution
at
different
concentrations
[[EQUATION]]
infinite
dilution
[[EQUATION]]).
Transfer
values
calculated
to
understand
solute-co-solute
overlapping
hydration
cospheres.
Hydration
numbers
reinforce
data.
Structural
changes
induced
by
solute-co-solutes
solute-solvent
determined
magnitude
sign
well-known
Hepler's
constant.
All
experimentally
obtained
derived
parameters
analyzed
light
ionic,
hydrophilic,
hydrophobic
taking
place
between
polar,
nonpolar
segments
salt.
Journal of Chemical & Engineering Data,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 15, 2025
The
protic
ionic
liquids
(PILs)
could
be
suggested
as
new,
promising
class
of
sorbents
for
absorption
cooling
purposes.
This
work
is
a
continuation
our
systematic
investigation
an
aqueous
solution
lithium
bromide
in
novel
potential
working
fluid
refrigeration
technology.
thermodynamic
and
transport
properties
the
solutions
three
ethanolamine
based
on
2-hydroxyethylammonium,
bis(2-hydroxyethyl)ammonium,
tris(2-hydroxyethyl)ammonium
with
anion
propionate
were
investigated
through
density,
speed
sound,
viscosity
measurements
function
temperature
composition,
then
some
thermophysical
parameters
obtained.
key
parameters,
such
apparent
molar
volume,
isentropic
compressibility,
B-coefficients
calculated
from
experimental
data.
influence
temperature,
concentration,
cation
was
studied.
cospherical
overlap
model
indicates
positive
transfer
values
observed
findings
showed
that
interactions
between
PILs
predominated
systems
under
study
these
increased
PIL
concentrations
increased.
results
discussed
terms
various
solute–solvent
present
studied
systems.
Macromolecular Symposia,
Journal Year:
2025,
Volume and Issue:
414(1)
Published: Feb. 1, 2025
Abstract
We
conducted
an
investigation
on
a
0.01
M
solution
of
L‐leucine
in
aqueous
magnesium
sulfate
and
chloride
at
temperatures
283.15
K
288.15
K.
The
study
focused
measuring
analyzing
various
acoustic
thermodynamic
parameters
such
as
surface
tension
(σ),
adiabatic
compressibility(β),
specific
heat
ratio
(γ),
molar
volume
(V
m
),
apparent
(ϕ
v
Wada's
constant(W),
Rao's
constant(R).
W
e
calculated
all
these
from
the
experimental
data
used
current
study.
Different
have
been
applied
to
examine
solute‐solvent
solute‐solute
interactions
effects
sulphate
salt
hydration
electrostriction
behaviour
l
‐leucine.
addition
considerably
impacted
volumetric
investigated
amino
acids
via
ion‐ion,
ion‐dipole,
solute‐solvent,
hydrogen
bonding
interactions.
systems
are
considered
when
interpreting
results.
It
has
noted
that
potent
solute
also
grows
temperature
rises.
aqueous‐salt
solutions,
serve
structure‐makers.
Overall
findings
indicate
more
powerful
molecular
interaction
than
chloride.
Journal of Chemical & Engineering Data,
Journal Year:
2024,
Volume and Issue:
69(7), P. 2528 - 2545
Published: June 27, 2024
The
use
of
hazardous
and
unstable
solvents
in
various
industries,
particularly
those
involved
pharmaceuticals
chemicals,
leads
to
significant
environmental
issues.
Ionic
liquids
(ILs),
a
novel
class
solvents,
are
often
categorized
as
″green
solvents″
due
their
low
vapor
pressure.
Among
them,
choline-based
ILs
exhibit
toxicity
high
biodegradability.
This
study
aims
synthesize
characterize
ionic
liquid
choline
lactate
([Ch][La])
using
1H-NMR
FT-IR
spectroscopy
examining
solute–solvent
interactions
based
on
measured
thermophysical
properties
the
amino
acids
glycine,
L-alanine,
L-phenylalanine
presence
IL.
density,
speed
sound,
viscosity,
electrical
conductivity
data
for
obtaining
volumetric,
acoustic,
transport
at
298.15
K.
By
utilizing
Masson,
Jones–Dole,
lcCM
equations,
thermodynamic
such
partial
molar
volume
Vφ0,
isentropic
compressibility
κφ0,
viscosity
B-coefficient,
limiting
Λ0,
ion
association
constant
KA
have
been
computed.
ion–ion
interaction
ion–hydrophilic
between
acid
dominate
with
increasing
temperature.
Journal of Scientific Research,
Journal Year:
2025,
Volume and Issue:
17(1), P. 105 - 113
Published: Jan. 1, 2025
Acoustic
and
volumetric
studies
were
conducted
on
aqueous
solutions
of
L-isoleucine
in
the
presence
magnesium
nitrate
sulphate
solution
at
temperatures
288.15K
298.15K.
Ultrasonic
sound
waves
propagating
through
these
experimental
demonstrated
a
direct
association
between
different
molecular
interactions
among
solution's
constituents,
both
strong
weak.
The
rising
electrostriction
water
molecules
around
solute
co-solute
ions
decreased
isothermal
compressibility
(KT).
Significant
ion-ion,
ion/hydrophilic-hydrophilic,
ion/hydrophobic-hydrophobic
happened
various
segments
ions,
while
ion-solvent
dominated.
processes
solvation
ion
brought
about
reformation
structure.
Numerous
variables
assessed
highlighted
increased
interactions,
ion-pair
formation,
structure-building
capabilities
MgSO4
/
Mg(NO3)2.
