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Comparison of some commercial waxes by gas liquid chromatography
Author(s) -
Tulloch A. P.
Publication year - 1973
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02640842
Subject(s) - wax , carnauba wax , chemistry , chromatography , gas chromatography , hydrolysis , organic chemistry
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% C 24 −C 34 αω‐diols and 4% C 24 −C 32 ω‐hydroxy acids, in addition to 28% C 20 −C 32 aciods and 17% C 22 −C 34 alcohols, on methanolysis.