APPEARANCE:LANOLIN is a pale yellow,tenacious, unctuous substance obtained from the wool of sheep
having afaint but characteristic odor. When melted, it is a clear or almost clear yellow liquid.SOLUBILITY:
practically insoluble in water, slightly soluble in boiling anhydrous ethanol.
Lanolin is also called wool fat, wool wax or wool grease. As lanolin lacks glycerides (glycerol esters)
it is not a true fat.Lanolin primarily consists of sterol esters instead. Lanolin is classified chemicallyas
a wax, being a complex mixture of naturally occurring esters and poly-esters of 33 high molecular
weight alcohols (principally sterols) and 36 fatty acids. It is 98% ester minimum, of which the fatty
alcohols and fatty acids comprise an approximately 50/50 ratio.
TYPICAL COMPOSITION OF LANOLIN
|Esters of sterols and triterpene alcohols|
Esters of aliphatic alcohols
Monohydroxy esters of sterols and of triterpeneand aliphatic alcohols
Di- and polyhydroxyesters and free diols
Free aliphatic alcohols
Free fatty acids
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