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EC / List no.: 204-017-6
CAS no.: 112-92-5
Mol. formula: C18H38O
Stearyl alcohol, or 1-octadecanol, is an organic compound classified as a saturated fatty alcohol with the formula CH3(CH2)16CH2OH.
Stearyl alcohol takes the form of white granules or flakes, which are insoluble in water.
Stearyl alcohol has a wide range of uses as an ingredient in lubricants, resins, perfumes, and cosmetics.
Stearyl alcohol is used as an emollient, emulsifier, and thickener in ointments, and is widely used as a hair coating in shampoos and hair conditioners.
Stearyl heptanoate, the ester of stearyl alcohol and heptanoic acid (enanthic acid), is found in most cosmetic eyeliners.
Stearyl alcohol has also found application as an evaporation suppressing monolayer when applied to the surface of water.
Stearyl alcohol is prepared from stearic acid or some fats by the process of catalytic hydrogenation.
Stearyl alcohol has low toxicity.
Stearyl alcohol is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 100 000 to < 1 000 000 tonnes per annum.
Stearyl alcohol is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.
ChEBI: Octadecan-1-ol is a long-chain primary fatty alcohol consisting of a hydroxy function at C-1 of an unbranched saturated chain of 18 carbon atoms.
Stearyl alcohol has a role as a plant metabolite, a human metabolite and an algal metabolite.
Stearyl alcohol is a long-chain primary fatty alcohol, a fatty alcohol 18:0 and a primary alcohol.
Stearyl alcohol derives from a hydride of an octadecane.
Mixed monolayers of 1-octadecanol and ethylene glycol monooctadecyl ether were studied to investigate their evaporation suppressing performance.
The rate dependence of the collapse pressure for an octadecanolmonolayer using axisymmetric drop shape analysis has been investigated.
Stearyl alcohol is a thickener of cosmetic products, mainly creams and lotions.
A natural alcohol which is derived from Vegetable source, Stearyl alcohol changes the viscosity and adds a to creams and lotions, whilst adding stability.
Stearyl alcohol is a handy multi-tasker, white to light yellowish oil-loving wax that works very well in oil-in-water emulsions.
Stearyl alcohol makes your skin feel nice and smooth (emollient), stabilizes oil-water mixes and gives body to them.
Stearyl alcohol 's a so-called fatty alcohol - the good, emollient type of alcohol that is non-drying and non-irritating.
Stearyl alcohol helps to improve the texture of products, reduce moisture loss from the skin and protect the skin from allergies and bacteria.
Stearyl alcohol is regarded as a safe ingredient.
Stearyl alcohol is a low hazard, low irritant ingredient with low toxicity.
Stearyl alcohol is a fatty alcohol used as an emollient and to help keep other ingredients intact in a formulation.
Stearyl alcohol is not to be confused with the drying, irritating types of alcohol such as SD alcohol or denatured alcohol.
Stearyl alcohol also has cleansing and foam-boosting properties and isn’t considered drying on skin.
Stearyl alcohol is also known as 1-octadecanol, and in Stearyl alcohol's raw form is a white, waxy substance.
The U.S. Food and Drug Administration has ruled stearyl alcohol safe as a food additive, and the independent Cosmetic Ingredient Review panel deems Stearyl alcohol safe as used in cosmetics.
Precautions
When blending always take the following precautions:
Use gloves (disposable are ideal)
Take care when handling hot oils
Wear eye protection
Work in a well ventilated room
Keep ingredients and hot oils away from children
If ingested, seek immediate medical advice
If contact made with eyes, rinse immediately with clean warm water and seek medical advice if in any doubt.
Consumer Uses
Stearyl alcohol is used in the following products: biocides (e.g. disinfectants, pest control products), coating products, anti-freeze products, lubricants and greases, polishes and waxes, finger paints, washing & cleaning products and cosmetics and personal care products.
Other release to the environment of Stearyl alcohol is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and outdoor use.
1-Octadecanol is used to surfactant in cosmetics.
Stearyl alcohol provides effective hydration to hands and face with pheohydrane which is a complex of the mico algae Chlorella Vulgaris and hydrolysed algin in a sea water base.
Stearyl alcohol is a saturated alcohol of high purity and can substitute for cetyl alcohol in pharmaceutical dispensing, in cosmetic creams, for emulsions, textile oils and finishes, as antifoam agent, lubricant, viscosity agent, builder, and chemical raw material.
Stearyl alcohol is an organic compound that is classified as a fatty alcohol.
Stearyl alcohol is a white, waxy granule or flake, which doesn’t dissolve in water.
Stearyl alcohol is derived from stearic acid which is most commonly found in vegetable, palm and coconut oils.
Stearyl alcohol is often used in hair shampoos and conditioners, moisturisers, make up, cleansers, perfumes and foundation.
Stearyl alcohol is used as an ingredient in a wide variety of skin care and cosmetics.
Stearyl alcohol has a number of uses including acting as an emollient, an emulsifier, and a thickener in ointments.
As an emulsifier Stearyl alcohol helps stop products from separating into their oil and water components.
Despite alcohols being associated with drying the skin, as an emollient Stearyl alcohol acts as a lubricant in moisturisers.
Stearyl alcohol helps give the skin a smoother and soft appearance.
Stearyl alcohol is also added to products as it helps stop them from being overly foamy or bubbly, especially if they are dropped or shaken.
Article service life
Release to the environment of Stearyl alcohol can occur from industrial use: industrial abrasion processing with low release rate (e.g. cutting of textile, cutting, machining or grinding of metal) and of articles where Stearyl alcohol are not intended to be released and where the conditions of use do not promote release.
Other release to the environment of Stearyl alcohol is likely to occur from: indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment), outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials), outdoor use and indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners).
Stearyl alcohol can be found in products with material based on: stone, plaster, cement, glass or ceramic (e.g. dishes, pots/pans, food storage containers, construction and isolation material) and plastic (e.g. food packaging and storage, toys, mobile phones).
Widespread uses by professional workers
Stearyl alcohol is used in the following products: lubricants and greases, biocides (e.g. disinfectants, pest control products), fillers, putties, plasters, modelling clay and coating products.
Stearyl alcohol is used in the following areas: building & construction work and agriculture, forestry and fishing.
Stearyl alcohol is used for the manufacture of: machinery and vehicles, mineral products (e.g. plasters, cement), rubber products, plastic products, fabricated metal products and furniture.
Other release to the environment of Stearyl alcohol is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and outdoor use.
Uses at industrial sites
Stearyl alcohol is used in the following products: fillers, putties, plasters, modelling clay, lubricants and greases, pH regulators and water treatment products, adhesives and sealants, coating products and non-metal-surface treatment products.
Stearyl alcohol is used in the following areas: building & construction work and mining.
Stearyl alcohol is used for the manufacture of: chemicals, mineral products (e.g. plasters, cement) and machinery and vehicles.
Release to the environment of Stearyl alcohol can occur from industrial use: in processing aids at industrial sites, in the production of articles, as an intermediate step in further manufacturing of another substance (use of intermediates), as processing aid and of substances in closed systems with minimal release.
Other release to the environment of Stearyl alcohol is likely to occur from: outdoor use and indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners).
Manufacture
Release to the environment of Stearyl alcohol can occur from industrial use: manufacturing of the substance, formulation of mixtures, formulation in materials, in processing aids at industrial sites, in the production of articles, as an intermediate step in further manufacturing of another substance (use of intermediates), as processing aid, for thermoplastic manufacture, as processing aid and of substances in closed systems with minimal release.
Chemical Properties
Stearyl alcohol occurs as hard, white, waxy pieces, flakes, or granules with a slight characteristic odor and bland taste.
Soluble in alcohol, acetone, and ether; insoluble in water.
Combustible.
Melting point: 56-59 °C (lit.)
Boiling point : 210 °C15 mm Hg
density : 0.812 g/mL at 25 °C (lit.)
vapor density : 9.3 (vs air)
vapor pressure : <0.01 mm Hg ( 38 °C)
refractive index : 1.4356 (estimate)
Fp : 185°C
storage temp. : 2-8°C
solubility methanol: soluble10mg/mL, clear, colorless
pka: 15.20±0.10(Predicted)
form : Flakes
color : White
Specific Gravity: 0.812
explosive limit : ~8%
Water Solubility : insoluble
Merck : 14,8805
BRN : 1362907
CAS DataBase Reference: 112-92-5(CAS DataBase Reference)
NIST Chemistry Reference: 1-Octadecanol(112-92-5)
EPA Substance Registry System: 1-Octadecanol (112-92-5)
Synonyms
Octadecanol, 1-;
Octadecyl alcohol,
Stearyl alcohol;
1-Octadecanol,
Octadecyl alcohol,
Stearyl alcohol;
Stearyl alcohol,
synthesis grade;
Stearyl alcohol,
extra pure,
Ph Eur,
USP;Stearyl Alcohol (125 mg);
n-OCTADECYL ALCOHOL,
TECH;
Ecorol 18/98: Stearyl Alcohol Pastilles
