- Cetyl alcohol
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Cetyl alcohol[1] Hexadecan-1-olOther namesCetanol, Cetyl alcohol, Ethal, Ethol, Hexadecanol, Hexadecyl alcohol, Palmityl alcoholIdentifiers CAS number 36653-82-4 PubChem 2682 ChemSpider 2581 UNII 936JST6JCN KEGG D00099 ChEBI CHEBI:16125 ChEMBL CHEMBL706 Jmol-3D images Image 1 - OCCCCCCCCCCCCCCCC
Properties Molecular formula C16H34O Molar mass 242.44 g mol−1 Appearance White crystals Density 0.811 g/cm³ Melting point 49 °C, 322 K, 120 °F
Boiling point 344 °C, 617 K, 651 °F
Solubility in water Insoluble alcohol (verify) (what is: / ?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)Infobox references Cetyl alcohol, also known as 1-hexadecanol and palmityl alcohol, is a fatty alcohol with the chemical formula CH3(CH2)15OH. At room temperature, cetyl alcohol takes the form of a waxy white solid or flakes.
The name cetyl derives from the whale oil (Latin: cetus) from which it was first isolated.[2]
Contents
History
Cetyl alcohol was discovered in 1817 by the French chemist Michel Chevreul when he heated spermaceti, a waxy substance obtained from sperm whale oil, with caustic potash (potassium hydroxide). Flakes of cetyl alcohol were left behind on cooling.[3]
Production
With the demise of commercial whaling, cetyl alcohol is no longer primarily produced from whale oil but instead either as an end-product of the petroleum industry, or produced from vegetable oils such as palm oil and coconut oil.
Uses
Cetyl alcohol is used in the cosmetic industry as a opacifier in shampoos, or as an emollient, emulsifier or thickening agent in the manufacture of skin creams and lotions.[4] It is also employed as a lubricant for nuts and bolts.
Related compounds
- Palmitate
- Palmitic acid
References
- ^ Merck Index, 11th Edition, 2020.
- ^ Nordegren, Thomas (2002). The A-Z Encyclopedia of Alcohol and Drug Abuse. Universal Publishers. p. 165. ISBN 158112404X.
- ^ Booth, James Curtis (1862). The Encyclopedia of Chemistry, Practical and Theoretical. p. 429.
- ^ Smolinske, Susan C (1992). Handbook of Food, Drug, and Cosmetic Excipients. CRC Press. pp. 75–76. ISBN 084933585X.
Alcohols (0°) Primary alcohols (1°) Ethanol · 1-Propanol · Butanol/Isobutanol · 1-Pentanol · 1-Hexanol · 1-Heptanol
Fatty alcohol: Octanol (C8) · 1-Nonanol (C9) · 1-Decanol (C10) · Undecanol (C11) · Dodecanol (C12) · 1-Tetradecanol (C14) · Cetyl alcohol (C16) · Stearyl alcohol (C18) · Arachidyl alcohol (C20) · Docosanol (C22) · Tetracosanol (C24) · Hexacosanol (C26) · Octanosol (C28) · Triacontanol (C30)
PolicosanolSecondary alcohols (2°) Isopropyl alcohol · 2-Butanol · 2-Hexanol · Cyclohexanol
Tertiary alcohols (3°) biochemical families: prot · nucl · carb (glpr, alco, glys) · lipd (fata/i, phld, strd, gllp, eico) · amac/i · ncbs/i · ttpy/iCategories:- Fatty alcohols
- Non-ionic surfactants
- Lubricants
- Cosmetics chemicals
- Whale products
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