Name: ThermoML Representation of Published Experimental Data from Journal of Chemical and Engineering Data (0021-9568, American Chemical Society)
Creator: Thermodynamics Research Center
License: https://www.nist.gov/open/license

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

Effect of Temperature and Concentration on Density, Apparent Molar Volume, Ultrasound Velocity, Isoentropic Compressibility, Viscosity, and Conductivity of Hexadecyldimethylethylammonium Bromide

Sheikh, F. A.[Fayaz Ahmad], Bhat, P. A.[Parvaiz Ahmad]

J. Chem. Eng. Data 2012, 57, 12, 3368-3374

ABSTRACT

Physicochemical properties like density, apparent molar volume, ultrasound velocity, isoentropic compressibility, viscosity, and conductivity of aqueous solutions of hexadecyldimethylethylammonoum bromide as a function of concentration at different temperatures ranging from (298.15 to 323.15) K have been determined. Critical micellar concentration values depend upon the technique used. Density data have been used to calculate the apparent molar volume of the surfactant. Viscosity data have been employed to compute degrees of hydration based on the Vand and Einstien equation. Conductivity measurements have been used to evaluate the degree of counterion binding and various thermodynamic paramaters.

Compounds

#	Formula	Name
1	C20H44BrN	ethylhexadecyldimethylammonium bromide
2	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	1 2	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Dip type conductivity cell	40
POMD	1 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	48
POMD	1 2	Speed of sound, m/s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Sing-around technique in a fixed-path interferometer	48
POMD	1 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	48