Summary
Two theoretical approaches are discussed to calculate the solvent strength (∈∘) on carbon materials. One is based on the adsorbate-adsorbent interfacial tension and the other uses the theory of solubility parameters. It is shown that there is good agreement between these approaches. Experimental values are compared with theoretical ones and there is again a good agreement. Solvents having small and highly polar molecules have small ∈∘ values. Solvents having large and aromatic molecules have high ∈∘ values. Binary solvent mixtures can be classified in two groups depending on the rate of change of ∈∘ with the mole fraction of the strongest solvent in the mixture.
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Dedicated to Professor Dr. István Halász for his 60th birthday.
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Colin, H., Guiochon, G. & Jandera, P. The solvent eluotropic strength on carbon adsorbents. Chromatographia 15, 133–139 (1982). https://doi.org/10.1007/BF02290446
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DOI: https://doi.org/10.1007/BF02290446