ABSTRACT

Electrolytic conductivities of potassium halides, KX (X = Cl , Br , I ) have been investigated in 10, 20, and 30 mass% glycerol + H O mixtures at 298.0, 308.0, and 318.0 K. The conductance data have been analyzed by the Fuoss-conductance-concentration equation in terms of the limiting molar conductance ( ), the association constant (KA), and the distance of closest approach of ion (R). The association constant (KA) tends to increase in the order: 10 mass% less than 20 mass% less than 30 mass% glycerol + water mixtures, while it decreases with temperature. Thermodynamic parameters H , G and S are obtained and discussed. Also, Walden products (? ) are reported. The results have been interpreted in terms of ion-solvent interactions and structural changes in the mixed solvents.

Compounds

#	Formula	Name
1	C3H8O3	glycerol
2	ClK	potassium chloride
3	H2O	water
4	BrK	potassium bromide
5	IK	potassium iodide

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 3	Molar conductivity, S*m2/mol ; Liquid	Solvent: Mole fraction - 1; Liquid Amount concentration (molarity), mol/dm3 - 2; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Systonic-306 conductivity bridge using a dip-type cell	63
POMD	1 2 3	Mass density, kg/m3 ; Liquid	Solvent: Mole fraction - 1; Liquid Amount concentration (molarity), mol/dm3 - 2; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	63
POMD	1 3 4	Molar conductivity, S*m2/mol ; Liquid	Solvent: Mole fraction - 1; Liquid Amount concentration (molarity), mol/dm3 - 4; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Systonic-306 conductivity bridge using a dip-type cell	63
POMD	1 3 4	Mass density, kg/m3 ; Liquid	Solvent: Mole fraction - 1; Liquid Amount concentration (molarity), mol/dm3 - 4; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	63
POMD	1 5 3	Molar conductivity, S*m2/mol ; Liquid	Solvent: Mole fraction - 1; Liquid Amount concentration (molarity), mol/dm3 - 5; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Systonic-306 conductivity bridge using a dip-type cell	61
POMD	1 5 3	Mass density, kg/m3 ; Liquid	Solvent: Mole fraction - 1; Liquid Amount concentration (molarity), mol/dm3 - 5; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Pycnometric method	62

Thermodynamics Research Center / ThermoML | International Journal of Thermophysics

Conductometric Study of Some Metal Halides in Glycerol + Water Mixtures

Roy, M. N.[Mahendra Nath], Gurung, B. B.[Bhoj Bahadur], Dakua, V. K.[Vikas Kumar]

ABSTRACT