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]
Int. J. Thermophys. 2006, 27, 5, 1539-1550
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