Comparison of some commercial waxes by gas liquid chromatography |
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Authors: | A P Tulloch |
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Affiliation: | (1) Prairie Regional Laboratory, National Research Council, S7N 0W9 Saskatoon, Saskatchewan, Canada |
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Abstract: | Volatile components (hydrocarbons, monoesters, free acids as methyl esters and free alcohols as acetates) of seven unhydrolyzed
commercial waxes-ouricury, carnauba, Chinese insect, lac, esparto, candelilla and Japan wax—have been analyzed and compared
by gas liquid chromatography. Though appreciable portions of the waxes were nonvolatile, the results were sufficient to distinguish
the seven waxes completely. Methanolysis products were analyzed directly by gas liquid chromatography, and the results agreed
with those previously obtained for hydrolysis products of these waxes. Ouricury wax gave 18% C24−C34 αω-diols and 4% C24−C32 ω-hydroxy acids, in addition to 28% C20−C32 aciods and 17% C22−C34 alcohols, on methanolysis.
NRCC No. 13387. |
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