Aspects of the chemistry of donor solven
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Hsiang-Hui King; Leon M. Stock
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Article
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1982
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Elsevier Science
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English
β 364 KB
multiple washings with benzene. Evidently, supercritical CO, is more effective at penetrating the interior of the solid coal-extract, at displacing the pyridine, or both. The selective removal of pyridine from the solid extract is analogous to the selective extraction of alkaloids from plant materia