wax
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spermaceti, a wax, liquid at body temperature, obtained from the head of a sperm whale or bottlenose whale. Spermaceti was used chiefly in ointments, cosmetic creams, fine wax candles, pomades, and textile finishing; later it was used for industrial lubricants. The substance was named in the mistaken belief that it was the coagulated sem*n of the whale.
The fluid contained in the spermaceti organ of the whale’s head was removed to obtain crude sperm oil. The spermaceti was separated from the oil by chilling in a process whalers called wintering; it congealed as a white crystalline, waxy solid. Chemically, pure spermaceti consists principally of cetyl palmitate and other esters of fatty acids with fatty alcohols and melts at about 44 °C (111 °F). The former official unit of illumination, the candlepower, was defined as the light given off by a candle of pure spermaceti burning at a rate of 7.776 grams (120 grains) per hour.
