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

Effect of Cadmium Chloride and Ammonium Chloride Salts on the Enthalpy of Mixing of the Pyridine + Water at 303.15 K

Kim, J.-T.[Jeong-Tai], Kim, H.-C.[Hee-Chul], Kim, S.-K.[Sun-Kuk], Mahendradas, D. K.[Dharmendira Kumar], Prabu, A. A.[Arun Anand]
J. Chem. Eng. Data 2012, 57, 1, 1-6
ABSTRACT
In this work, the effect of two dissolved inorganic salts (cadmium chloride, CdCl2; ammonium chloride, NH4Cl) on the enthalpy of mixing (H E) of the pyridine + water binary system measured at 303.15 K using an isothermal displacement calorimeter with vapour space is investigated. Compared to the salt-free system, the addition (0.05 mass fraction) of the salts altered the magnitude of H E values to some extent depending on the mole fraction of x1. The importance of the solute solvent and solvent solvent interactions was demonstrated from the increasing exothermic H E values with increasing salt concentration (0.10 mass fraction). The experimental values of H E were fitted into the Redlich Kister polynomial, and the adjustable parameters obtained by the least-squares method are reported.
Compounds
# Formula Name
1 C5H5N pyridine
2 CdCl2 cadmium chloride
3 ClH4N ammonium chloride (NH4Cl)
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
  • 1
  • Normal boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Distillation
  • 1
  • POMD
  • 1
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 4
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Pycnometric method
  • 1
  • POMD
  • 1
  • 4
  • Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Calvet calorimetry
  • 9
  • POMD
  • 1
  • 4
  • 2
  • Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid
  • Mole fraction - 1; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Calvet calorimetry
  • 27
  • POMD
  • 1
  • 4
  • 3
  • Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid
  • Mole fraction - 1; Liquid
  • Mole fraction - 3; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Calvet calorimetry
  • 18