ABSTRACT

Densities n and viscosities c of two hydroxamic acids, N-phenyl-2-chlorobenzo- and N-o-tolyl-4-chlorobenzo-, have been determined as a function of their concentration in aqueous acetone solution at temperatures 303.15 and 313.15 K. Apparent molar volumes, standard-state partial molar volumes and relative viscosities have been calculated. The viscosity data have been analyzed using Jones Dole equation. The activation thermodynamic parameters of viscous flow have been evaluated using Feakins equation. These were obtained to throw light on the mechanism of viscous flow. Thermodynamic interactions in solutions have been studied in terms of a number of excess functions calculated from the experimental data. The effect of hydroxamic acid concentration and temperature on these parameters has been discussed. The results were interpreted in the light of solute solvent interactions in aquo-organic media.

Compounds

#	Formula	Name
1	C13H10ClNO2	N-Phenyl-2-chlorobenzohydroxamic acid
2	C14H12ClNO2	N-o-Tolyl-4-chlorobenzohydroxamic acid
3	C3H6O	acetone
4	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	3 4 1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Amount concentration (molarity), mol/dm3 - 1; Liquid	Pressure, kPa; Liquid Solvent: Volume fraction - 3; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	14
POMD	3 4 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Amount concentration (molarity), mol/dm3 - 1; Liquid	Pressure, kPa; Liquid Solvent: Volume fraction - 3; Liquid	Liquid	Pycnometric method	14
POMD	3 4 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Amount concentration (molarity), mol/dm3 - 2; Liquid	Pressure, kPa; Liquid Solvent: Volume fraction - 3; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	14
POMD	3 4 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Amount concentration (molarity), mol/dm3 - 2; Liquid	Pressure, kPa; Liquid Solvent: Volume fraction - 3; Liquid	Liquid	Pycnometric method	14

Thermodynamics Research Center / ThermoML | Thermochimica Acta

Volumetric studies and thermodynamics of viscous flow of hydroxamic acids in acetone +water solvent at temperatures 303.15 and 313.15K

Tiwari, V.[Vaishali], Pande, R.[Rama]

ABSTRACT