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Adsorption of nonpolar molecules with different electron shell structures on adsorbents of various types

Communication 1. Adsorption of benzene and n-hexane on barium sulfate

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Summary

  1. 1.

    The adsorption of benzene vapor in the monomolecular surface filling range is much greater than the adsorption of n-hexane vapor on barium sulfate samples. The difference in adsorption increases as the baking temperature is raised and thus is not caused by hydration of the surface but by the ionic structure of the surface.

  2. 2.

    In contrast with hexane, when benzene is adsorbed on barium sulfate, interaction in addition to electrokinetic shows up principally between the surface electrostatic field and the π-electron bonds of the benzene molecule.

  3. 3.

    Comparing the adsorptions of benzene and n-hexane on various adsorbents shows that the effect of this additional interaction is determined by the chemical structure of the adsorbent surface layer.

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Belyakova, L.D., Kiselev, A.V. Adsorption of nonpolar molecules with different electron shell structures on adsorbents of various types. Russ Chem Bull 11, 904–908 (1962). https://doi.org/10.1007/BF00905202

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Keywords

  • Benzene
  • Shell Structure
  • Electrostatic Field
  • Electron Shell
  • Ionic Structure