ABSTRACT

Excess molar volumes of mixtures of cyclohexane and pseudocyclohexane (an equimolar mixture of cyclopentane + cycloheptane) with hexadecane and various pseudohexadecanes (equimolar mixtures of tetradecane + octadecane, decane + docosane, or octane + tetracosane) have been measured at 313.15 K. The results for the multicomponent mixtures are compared with those for the binary mixtures and they show that n-alkanes obey, not quite within experimental uncertainty, an extended principle of congruence with cyclohexane as the other component, whereas mixtures of pseudocyclohexane with hexadecane do not obey the extended principle.

Compounds

#	Formula	Name
1	C6H12	cyclohexane
2	C5H10	cyclopentane
3	C7H14	cycloheptane
4	C16H34	hexadecane
5	C14H30	tetradecane
6	C18H38	octadecane
7	C10H22	decane
8	C22H46	docosane
9	C24H50	tetracosane
10	C8H18	octane

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	Vibrating tube method	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2 3	Mass density, kg/m3 ; Liquid	Mole fraction - 2; Liquid Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	1
POMD	6 5	Mass density, kg/m3 ; Liquid	Mole fraction - 5; Liquid Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	1
POMD	7 8	Mass density, kg/m3 ; Liquid	Mole fraction - 7; Liquid Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	1
POMD	10 9	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Mole fraction - 10; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	2
POMD	1 4	Excess molar volume, m3/mol ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Direct dilatometry	32
POMD	1 6 5	Excess molar volume, m3/mol ; Liquid	Mole fraction - 5; Liquid Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Direct dilatometry	32
POMD	1 7 8	Excess molar volume, m3/mol ; Liquid	Mole fraction - 8; Liquid Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Direct dilatometry	32
POMD	1 10 9	Excess molar volume, m3/mol ; Liquid	Mole fraction - 10; Liquid Mole fraction - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Direct dilatometry	31
POMD	2 3 4	Excess molar volume, m3/mol ; Liquid	Mole fraction - 4; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Direct dilatometry	31

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

Excess Molar Volumes for Three and Four Component Mixtures Simulating the Binary Mixture (Cyclohexane+ Hexadecane)

Marsh, K. N.[Kenneth N.], Brown, A.[Anthony]

ABSTRACT