International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2557

Full Length Research Paper

Quantitative analysis of cohesive energy density: A Gordon parameter of 1:1 aqueous sodium salts solutions

Man Singh    
Chemistry Research Laboratory, Deshbandhu College, University of Delhi, New Delhi, India. 
Email: [email protected]

  •  Accepted: 14 April 2011
  •  Published: 16 October 2011


The Gordon parameter (g/V21/2(dyne mol1/2)/cm2) of solutions of NaNO3, NaCl and CH3COONa binary mixtures of water in composition range 0.4 to 8.7, 0.6 to 4.6 and 0.4 to 6.1 mol/kg (m), respectively are reported. The cohesive energy density data are analyzed in terms of aggregation of the water molecules around ionic sphere. The 13 ((dyne mol1/2)/cm2) value of the Gordon parameter (g/V21/2) was noted for effective aggregation, but with CH3COONa, the Gordon parameter (g/V21/2) and 0.6 to 2.8 m NaCl, the values were less than 13, whereas from 2.9 to 4.6 m NaCl, they were 2 times higher than 13. The dilute NaNO3 solutions produced lower values and the concentrated solutions produced in manifold higher values than 13.


Key words: Cohesive energy, binary mixtures, molecular interactions, cohesive energy density, survismeter.