ABSTRACT

Excess molar volumes, VE, Excess molar enthalpies, HE and speeds of sound , u data of Tetrahydropyran(i) + cyclohexane or n-hexane or n-heptane (j) binary mixtures have been measured using dilatometer, calorimeter and interferometer over whole mole fraction range at 308.15 K. Speeds of sound data have been utilized to predict isentropic compressibilities changes of mixing, . The analysis of VE in terms of Graph theory reveals that (i+j) mixtures are characterized by dipole - induced dipole interactions between THP and cyclo or n-alkanes to form 1: 1 moloecular complex. HE and data of the investigated mixtures have also been analyzed in terms of Graph theory. VE, HE and data predicted by Graph theory compare well with their corresponding experimental values.

Compounds

#	Formula	Name
1	C5H10O	tetrahydropyran
2	C6H12	cyclohexane
3	C6H14	hexane
4	C7H16	heptane

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	3 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Calvet calorimetry	14
POMD	3 1	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Linear variable-path acoustic interferometer	14
POMD	3 1	Excess molar volume, m3/mol ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Direct dilatometry	14
POMD	1 4	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Calvet calorimetry	14
POMD	1 4	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Linear variable-path acoustic interferometer	14
POMD	1 4	Excess molar volume, m3/mol ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Direct dilatometry	14
POMD	2 1	Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Calvet calorimetry	14
POMD	2 1	Speed of sound, m/s ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Linear variable-path acoustic interferometer	13
POMD	2 1	Excess molar volume, m3/mol ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Direct dilatometry	14

Thermodynamics Research Center / ThermoML | Thermochimica Acta

Thermodynamic properties of binary mixtures containing Tetrahydropyran: Excess molar volumes, Excess molar enthalpies and isentropic compressibilities changes of mixing

Siwach, R.[Rajesh], Dimple, Sharma, V. K.

ABSTRACT