ABSTRACT

Excess molar volumes V E m and partial molar volumes V 2 have been determined from density measurements for dilute aqueous solutions of 1,2-hexanediol, 1,5-hexanediol, 1,6-hexanediol, and 2,5-hexanediol at (283.15, 288.15, 293.15, 298.15, 303.15, and 308.15) K as a function of composition. The infinite dilution partial molar volumes V12 of alcohols in aqueous solution are evaluated through extrapolation. Interactions of the different solutes with water are discussed in terms of the effect of the position of the hydroxyl groups in the hexanediol molecule. The limiting slope of the partial molar volumes is interpreted in terms of alkanediol hydration.

Compounds

#	Formula	Name
1	C6H14O2	1,2-hexanediol
2	C6H14O2	1,6-hexanediol
3	C6H14O2	2,5-hexanediol
4	C6H14O2	1,5-hexanediol
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	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	PYCNOM:UFactor:2	6
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	PYCNOM:UFactor:2	6
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	PYCNOM:UFactor:2	6
POMD	1 5	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	96
POMD	4 5	Mass density, kg/m3 ; Liquid	Mole fraction - 4; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	75
POMD	2 5	Mass density, kg/m3 ; Liquid	Mole fraction - 2; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	102
POMD	3 5	Mass density, kg/m3 ; Liquid	Mole fraction - 3; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	114

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Effect of temperature on the volumetric properties of dilute aqueous solutions of 1,2-hexanediol, 1,5-hexanediol, 1,6-hexanediol, and 2,5-hexanediol

Romero, C. M.[Carmen M.], Paez, M. S.[Manuel S.], Arteaga, J. C.[Jean C.], Romero, M. A.[Mario A.], Negrete, F.[Faustino]

ABSTRACT