ABSTRACT

The apparent molar volume of paracetamol (4-acetamidophenol) in water, 0.1 M HCl and 0.154 M NaCl as solvents at (298.15, 303.15, 308.15 and 310.65) K temperatures and at a pressure of 101.325 kPa were determined from the density data obtained with the help of a vibrating-tube Anton Paar DMA-48 densimeter. The partial molar volume, Vm, of paracetamol in these solvents at different temperatures was evaluated by extrapolating the apparent molar volume versus molality plots to m = 0. In addition, the partial molar expansivity, the isobaric coefficient of thermal expansion, and the interaction coefficient, have also been computed. The expansivity data show dependence of E0 values on the structure of the solute molecules.

Compounds

#	Formula	Name
1	C8H9NO2	N-acetyl-p-aminophenol
2	ClNa	sodium chloride
3	ClH	hydrogen chloride
4	H2O	water
5	C7H8	toluene
6	C6H12	cyclohexane

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	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	1 4	Apparent molar volume, m3/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Calculated with densities of this investigation	40
POMD	2 4	Mass density, kg/m3 ; Liquid	Mass fraction - 2; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	4
POMD	1 3 4	Apparent molar volume, m3/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Solvent: Amount concentration (molarity), mol/dm3 - 3; Liquid	Liquid	Calculated with densities of this investigation	40
POMD	1 2 4	Apparent molar volume, m3/mol ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid Solvent: Amount concentration (molarity), mol/dm3 - 2; Liquid	Liquid	Calculated with densities of this investigation	40

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Partial molar volume of paracetamol in water, 0.1 M HCl and 0.154 M NaCl at T = (298.15, 303.15, 308.15 and 310.65) K and at 101.325 kPa

Iqbal, M. J.[Muhammad Javed], Malik, Q. M.[Qaisar M.]

ABSTRACT