Abstract
Physical and chemical properties of 80 samples of Canadian yellow unrefined beeswax have been determined. Mean values were: melting point, 64.3 C; acid value, 18.7; ester value, 72.6; ratio number 3.89; saponification cloud point 62.5 C; and hydrocarbon content, 15.3%. There was no significant variation due to geography or climate. Values were very similar to those of U.S. beeswax and were within the specifications of National Formulary XIII, except that 21 samples had ester values in the range 70–72. A more accurate specification for ester value would be 70–77 instead of 72–77. Hydrocarbons, free fatty acids and long chain esters were analyzed by gas liquid chromatography, and the limiting values found make possible improved detection and estimation of adulterants. The upper limits for C16 and C18 acids were 5.8 and 3.3%, respectively, of the total free acids.
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Issued as NRCC No. 12779.
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Tulloch, A.P., Hoffman, L.L. Canadian beeswax: Analytical values and composition of hydrocarbons, free acids and long chain esters. J Am Oil Chem Soc 49, 696–699 (1972). https://doi.org/10.1007/BF02609202
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DOI: https://doi.org/10.1007/BF02609202