ABSTRACT

Experimental results of density (q), speed of sound (u), and refractive index (nD) have been obtained for aqueous solutions of ethylene glycol monomethyl ether (EGMME), ethylene glycol monoethyl ether (EGMEE), diethylene glycol monomethyl ether (DEGMME), and diethylene glycol monoethyl ether (DEGMEE) over the entire concentration range at T = 298.15 K. From these measurements, the derived parameters, apparent molar volume of solute (/V), excess molar volume (VE), isentropic compressibility of solution (bS), apparent molar isentropic compressibility of solute (/KS), deviation in isentropic compressibility (DbS), molar refraction [R]1,2 and deviation in refractive index of solution (DnD) have been calculated. The Redlich Kister equation has been fitted to the calculated values of VE, DbS and DnD for the solution. The results obtained are interpreted in terms of hydrogen bonding and various interactions among solute and solvent molecules.

Compounds

#	Formula	Name
1	C3H8O2	2-methoxyethan-1-ol
2	C4H10O2	2-ethoxyethan-1-ol
3	C6H14O3	3,6-dioxa-1-octanol
4	C5H12O3	2-(2-methoxyethoxy)ethanol
5	H2O	water

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	ABBE:monoch	1
POMD	1	Speed of sound, m/s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Linear variable-path acoustic interferometer	1
POMD	1	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Pycnometric method	1
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	ABBE:monoch	1
POMD	2	Speed of sound, m/s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Linear variable-path acoustic interferometer	1
POMD	2	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Pycnometric method	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	ABBE:monoch	1
POMD	3	Speed of sound, m/s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Linear variable-path acoustic interferometer	1
POMD	3	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Pycnometric method	1
POMD	4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	ABBE:monoch	1
POMD	4	Speed of sound, m/s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Linear variable-path acoustic interferometer	1
POMD	4	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Pycnometric method	1
POMD	5	Refractive index (Na D-line) ; Liquid		Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	ABBE:monoch	2
POMD	5	Speed of sound, m/s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Linear variable-path acoustic interferometer	1
POMD	5	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Pycnometric method	1
POMD	1 5	Refractive index (Na D-line) ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	ABBE:monoch	16
POMD	1 5	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Linear variable-path acoustic interferometer	16
POMD	1 5	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Pycnometric method	16
POMD	2 5	Refractive index (Na D-line) ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	ABBE:monoch	16
POMD	2 5	Speed of sound, m/s ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Linear variable-path acoustic interferometer	16
POMD	2 5	Mass density, kg/m3 ; Liquid	Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Pycnometric method	16
POMD	3 5	Refractive index (Na D-line) ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	ABBE:monoch	16
POMD	3 5	Speed of sound, m/s ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Linear variable-path acoustic interferometer	16
POMD	3 5	Mass density, kg/m3 ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Pycnometric method	16
POMD	4 5	Refractive index (Na D-line) ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	ABBE:monoch	16
POMD	4 5	Speed of sound, m/s ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Linear variable-path acoustic interferometer	16
POMD	4 5	Mass density, kg/m3 ; Liquid	Mole fraction - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Pycnometric method	16

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Thermodynamic and optical studies of some ethylene glycol ethers in aqueous solutions at T = 298.15 K

Dhondge, S. S.[Sudhakar S.], Pandhurnekar, C.[Chandrashekhar], Parwate, D. V.[Dilip V.]

ABSTRACT