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Chlorides of nickel, cobalt and barium as adsorbents in gas chromatography

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Summary

The adsorptive and chromatographic properties of structurally different chlorides of bivalent metals: NiCl2, CoCl2 and BaCl2, have been studied. Low temperature adsorption isotherms of xenon were used to discover the number and area of different homogeneous crystal faces of the adsorbents. For NiCl2 and CoCl2 which have layer structures with chloride ions situated on one of the crystal face, the contribution of the specific intermolecular interaction energy to the total adsorption energy of aromatic hydrocarbons is far lower than that for BaCl2, all the crystal faces of which contain both chloride and barium ions. The salts studied, either in pure form or coated on the surface of Silochrom have been used to separate compounds which do not differ greatly in their physicochemical properties.

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Authors and Affiliations

  1. Laboratory of Surface Chemistry, Institute of Physical Chemistry, Academy of Sciences, Moscow, USSR

    L. D. Belyakova, A. M. Kalpakian & A. V. Kiselev

  2. Laboratory of Adsorption and Chromatography, Department of Chemistry, the M. V. Lomonosov State University of Moscow, USSR

    L. D. Belyakova, A. M. Kalpakian & A. V. Kiselev

Authors
  1. L. D. Belyakova
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  2. A. M. Kalpakian
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  3. A. V. Kiselev
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Belyakova, L.D., Kalpakian, A.M. & Kiselev, A.V. Chlorides of nickel, cobalt and barium as adsorbents in gas chromatography. Chromatographia 7, 14–18 (1974). https://doi.org/10.1007/BF02272354

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  • DOI: https://doi.org/10.1007/BF02272354

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