ABSTRACT

Densities a and ultrasonic speeds u for pure diethylene glycol (DEG), 1- butanol, 2-butanol, and 1,4-butanediol and of their binary mixtures over the entire composition range were measured at 298.15, 303.15, 308.15 and 313.15 K. Using these data the excess volumes, VE, deviations in isentropic compressibilities, aks, apparent molar volumes, V O ,i partial molar volumes, V m,i excess partial molar volumes, E V m,i have been calculated over the entire composition range and also calculated the excess partial molar volumes of the components at infinite dilution, , V , E V m i . The excess functions have been correlated using the Redlich-Kister equation at different temperatures. The variations of these derived parameters with composition and temperature have been presented graphically.

Compounds

#	Formula	Name
1	C4H10O3	diethylene glycol
2	C4H10O	butan-1-ol
3	C4H10O	butan-2-ol
4	C4H10O2	1,4-butanediol

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	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	4
POMD	1	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	LVPAI:UFactor:2	4
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	4
POMD	2	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	LVPAI:UFactor:2	4
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	4
POMD	3	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Linear variable-path acoustic interferometer	4
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	4
POMD	4	Speed of sound, m/s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Linear variable-path acoustic interferometer	4
POMD	2 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	44
POMD	2 1	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	LVPAI:UFactor:2	44
POMD	3 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	44
POMD	3 1	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Linear variable-path acoustic interferometer	44
POMD	4 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	44
POMD	4 1	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid Frequency, MHz; Liquid	Liquid	Linear variable-path acoustic interferometer	44

Thermodynamics Research Center / ThermoML | International Journal of Thermophysics

Densities, Ultrasonic Speeds, and Excess Properties of Binary Mixtures of Diethylene Glycol with 1-Butanol, 2-Butanol, and 1,4-Butanediol at Different Temperatures

Ali, A.[Anwar], Ansari, S.[Sana], Uzair, S.[Sahar], Tasneem, S.[Shadma], Nabi, F.[Firdosa]

ABSTRACT