ABSTRACT

Density and speed of sound data for dilute aqueous solutions of four linear 2-alkoxyethanols, H (CH2)n O CH2 CH2 OH, CnE1 for n = 1, 2, 3, 4, were measured using the Anton Paar DSA 5000 vibrating-tube densimeter and sound analyzer in the temperature range from 278.15 to 343.15 K and at atmospheric pressure. Standard molar volumes and standard molar isentropic compressions were evaluated from the measured data. Present data were compared with values available for selected linear aliphatic polyethers and poly(ethylene glycols) and structure property relationships were analyzed. Apparent molar quantities of aqueous 2-butoxyethanol in wider concentration range were evaluated and effects of aggregation of the solute molecules were considered.

Compounds

#	Formula	Name
1	C3H8O2	2-methoxyethan-1-ol
2	C4H10O2	2-ethoxyethan-1-ol
3	C5H12O2	2-propoxyethanol
4	C6H14O2	2-butoxyethan-1-ol
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 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	70
POMD	1 5	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	70
POMD	2 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	70
POMD	2 5	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	70
POMD	3 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	70
POMD	3 5	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	70
POMD	4 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	119
POMD	4 5	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	119

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Partial Molar Volumes and Partial Molar Isentropic Compressions of Four 2-Alkoxyethanols at Infinite Dilution in Water at Temperatures T = 278 343 K and Atmospheric Pressure

Cibulka, I.[Ivan]

ABSTRACT