Abstract
Pure samples of the mono- and di-hydric components, viz. cardanol and cardol, have been separated from technical cardanol using silica gel thin-layer chromatography and silica gel column chromatography. The presence, in small amounts, of a third phenolic component in addition to cardanol and cardol has been observed. Cardanol, the main constituent of technical cardanol, has been successfully separated into four components, viz. saturated, mono- di-, and tri-olefins using silver nitrate impregnated silic gel, thin-layer and column chromatographic techniques. The four components have been characterised as saturated, mono-, di-, and tri-olefins by consideration of their properties and their hydrogenation values. Further elucidation of their structures has been made by interpretation of their infrared spectra. The presence of a vinyl double bond in the tri-olefins has been confirmed.
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