They all consist of acids (stearic, palmitic, &c.) united with glycerine.
The first on examination proved to be a mixture of palmitic and stearic acids existing uncombined in the wool oil.
The oleic acid, being liquid at ordinary temperature, together with some stearic and palmitic acid, is thus pressed out.
Likewise the melting point of stearic acid is lowered by the addition of a small amount of palmitic acid.
It is a combination of palmitic acid and a peculiar hydrocarbon, called (after the whale) "cetyl," and easily forms pure crystals.
In certain lupine seeds, the fatty acids present in the lecithin appear to be palmitic and stearic.
Ordinary fats consist principally of derivatives of palmitic and stearic acids.