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单词 cetyl alcohol
释义

cetyl alcohol


ce·tyl alcohol

C0219400 (sēt′l)n. A solid white waxy alcohol, C16H34O, used as an emulsifier and in cosmetics, perfumes, and pharmaceuticals.
[Latin cētus, whale; see Cetus + -yl.]

ce′tyl al′cohol

(ˈsit l)
n. a white crystalline water-insoluble solid, C16H34O, used chiefly as an emollient in cosmetics and pharmaceuticals. [1870–75; < Latin cēt(us) whale; from its being found in spermaceti]
See Cetyl Alcohol

Cetyl Alcohol


cetyl alcohol

[′sēd·əl ′al·kə‚hȯl] (organic chemistry) C15H33OH A colorless wax, insoluble in water although a solution in kerosine forms an insoluble film on water.

Cetyl Alcohol

 

CH3(CH2)14CH2OH. Also known as hexadecyl alcohol, cetyl alcohol is a saturated primary aliphatic alcohol. A colorless crystalline compound, it is insoluble in water and soluble in alcohol and ether. It has a melting point of 49.27°C and a boiling point of 344.0°C.

Compounds of cetyl alcohol are encountered in nature; for example, the cetyl alcohol ester of palmitic acid is the major component of spermaceti. In industry, cetyl alcohol is obtained, along with other higher alcohols, by the catalytic addition of carbon monoxide and hydrogen to olefins (hydroformylation or oxo process) with the subsequent reduction of the aldehydes produced to alcohols and by the hydrogenation of palmitic acid. It is used in cosmetics and as a starting material in the production of surfactants.

cetyl alcohol


ce·tyl al·co·hol

(sē'tăl al'kŏ-hol), The 16-carbon alcohol corresponding to palmitic acid, so called because it is isolated from among the hydrolysis products of spermaceti; it is used as an emulsifying aid and in the preparation of "washable" (oil in water emulsions) ointment bases. Synonym(s): 1-hexadecanol, palmityl alcohol

cetyl alcohol

(sēt′l)n. A solid white waxy alcohol, C16H34O, used as an emulsifier and in cosmetics, perfumes, and pharmaceuticals.

cetyl alcohol

A white insoluble solid substance, C16H34O, used in the manufacture of ointments.See also: alcohol
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