ABSTRACT

Physical properties, such as density, q and refractive index, n of two hydroxamic acids (N-Phenylbenzo, C6H5NOH C6H5C@O and N-o-tolylbenzo, o-CH3 C6H4NOH C6H5C@O) have been measured in ethanol as a function of concentration at T = (298.15, 303.15, and 308.15) K. The apparent molar volume, V/, apparent molar volume at infinite dilution, V0 / and the slope, S V are calculated from the experimental value of density, q by applying the Masson s equation. The apparent molar expansibility at infinite dilution, /0E , molar volume, V and the excess molar volume, VE are also computed. The refractive index, n, data have been used to calculate the steric parameters viz. molar refraction, RM, excess refractive index, nE, excess molar refraction, RE M and polarizability, a of these molecules. The results obtained have been qualitatively used to interpret the solute solute and solute solvent interactions between hydroxamic acids and ethanol.

Compounds

#	Formula	Name
1	C13H11NO2	N-phenylbenzohydroxamic acid
2	C14H13NO2	N-hydroxy-N-(o-tolyl)benzamide
3	C2H6O	ethanol

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	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	VISOBS	1
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	3
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	3
POMD	2	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	VISOBS	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	3
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	3
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	3
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	3
POMD	3 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	30
POMD	3 1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	30
POMD	3 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	30
POMD	3 2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	30

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Volumetric and steric properties of hydroxamic acids in ethanol at different temperatures

Yadav, S. S.[Sushama Singh], Pande, R.[Rama], Khare, D.[Deepesh], Tripathi, M.[Manorama]

ABSTRACT