Stearyl alcohol

Stearyl alcohol

Stearyl alcohol[1]
Simplified structural formula
IUPAC name
Other names
Octadecyl alcohol, stearyl alcohol
ChemSpider  Y
Jmol-3D images Image
Molar mass 270.49 g/mol
Appearance White solid
Density 0.812 g/cm3
Melting point 59.4 to 59.8 °C (138.9 to 139.6 °F; 332.5 to 333.0 K)
Boiling point 210 °C (410 °F; 483 K) at 15 mmHg (~2.0 kPa)
1.1 x 10−3 mg/L
Flash point 185 °C (365 °F; 458 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
 Y  (: Y/N?)

Stearyl alcohol (also known as octadecyl alcohol or 1-octadecanol) is an fatty alcohol. It takes the form of white granules or flakes, which are insoluble in water. It has a wide range of uses as an ingredient in lubricants, resins, perfumes and cosmetics. It is used as an emollient, emulsifier, and thickener in ointments of various sorts, and is widely used as a hair coating in shampoos and hair conditioners. It has also found application as an evaporation suppressing monolayer when applied to the surface of water.[2]

Stearyl alcohol is prepared from stearic acid or some fats by the process of catalytic hydrogenation. It has low toxicity.[3]


  1. ^ Merck Index, 11th Edition, 8762.
  2. ^ Prime, E. L., Tran, D. N., Plazzer, M., Sunartio, D., Leung, A. H., Yiapanis, G., ... & Solomon, D. H. (2012). Rational design of monolayers for improved water evaporation mitigation. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 415, 47-58.
  3. ^ Klaus Noweck, Wolfgang Grafahrend, "Fatty Alcohols" in Ullmann's Encyclopedia of Industrial Chemistry 2006, Wiley-VCH, Weinheim. doi:10.1002/14356007.a10 277.pub2[link invalid/outdated]

External links

  • International Programme on Chemical Safety