ABSTRACT

Density data for dilute aqueous solutions of four cyclic ketones (cyclopentanone, cyclohexanone, cycloheptanone, and cyclohexane-1,4-dione) are presented together with standard molar volumes (partial molar volumes at infinite dilution) calculated from the experimental data. The measurements were performed at temperatures from T = 298 K up to T = 573 K. Experimental pressures were close to the saturated vapor pressure of water, and (15 and 30) MPa. The data were obtained using a high-temperature high-pressure flow vibrating-tube densimeter. Experimental standard molar volumes were correlated as a function of temperature and pressure using an empirical polynomial function. Contributions of the molecular structural segments (methylene and carbonyl groups) to the standard molar volume were also evaluated and analyzed.

Compounds

#	Formula	Name
1	C5H8O	cyclopentanone
2	C6H10O	cyclohexanone
3	C7H12O	cycloheptanone
4	C6H8O2	1,4-cyclohexanedione
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	Partial molar volume, m3/mol - 1 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Mole fraction - 1; Liquid	Liquid	Derived analytically	34
POMD	2 5	Partial molar volume, m3/mol - 2 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Mole fraction - 2; Liquid	Liquid	Derived analytically	34
POMD	3 5	Partial molar volume, m3/mol - 3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Mole fraction - 3; Liquid	Liquid	Derived analytically	34
POMD	4 5	Partial molar volume, m3/mol - 4 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Mole fraction - 4; Liquid	Liquid	Derived analytically	34

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Partial molar volumes of organic solutes in water. XXIII. Cyclic ketones at T = (298 to 573) K and pressures up to 30 MPa

Cibulka, I.[Ivan], Simurka, L.[Lukas], Hnedkovsky, L.[Lubomir], Bolotov, A.[Alexander]

ABSTRACT