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Emercol C18 99 My (Stearyl Alcohol) is a long-chain primary fatty alcohol consisting of a hydroxy function at C-1 of an unbranched saturated chain of 18 carbon atoms.
Emercol C18 99 My (Stearyl Alcohol) has a role as a plant metabolite, a human metabolite and an algal metabolite.
Emercol C18 99 My (Stearyl Alcohol) is a long-chain primary fatty alcohol, a fatty alcohol 18:0 and a primary alcohol.
CAS: 112-92-5
MF: C18H38O
MW: 270.49
EINECS: 204-017-6
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
Emercol C18 99 My (Stearyl Alcohol) derives from a hydride of an octadecane.
Mixed monolayers of Emercol C18 99 My (Stearyl Alcohol)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.
Emercol C18 99 My (Stearyl Alcohol) is used as an opacifier in shampoos or as an emollient, emulsifier or thickening agent in the manufacture of skin creams and lotions.
Emercol C18 99 My (Stearyl Alcohol) is a natural or bio-based material and has both a social impact and environmental accreditation.
Emercol C18 99 My (Stearyl Alcohol) is a naturally occurring fatty alcohol that is a good emollient for the skin and the perfect thickening agent for formulations.
Emercol C18 99 My (Stearyl Alcohol) helps stabilize emulsions and adds opacity to impart beauty products with a more luxurious and creamy appearance.
Emercol C18 99 My (Stearyl Alcohol) is also an excellent foaming agent that allows for a better cleansing experience. Stearyl Alcohol appears as a white, waxy solid in its raw form and has a mild, fatty odor.
Emercol C18 99 My (Stearyl Alcohol) can most commonly be found in conditioners, creams, lotions, lipsticks, and also deodorants.
Additionally, Emercol C18 99 My (Stearyl Alcohol) is safe and has a low comedogenic rating.
The chemical formula of Emercol C18 99 My (Stearyl Alcohol) is C18H38O.
Emercol C18 99 My (Stearyl Alcohol), or 1-octadecanol, is an organic compound classified as a saturated fatty alcohol with the formula CH3(CH2)16CH2OH.
Emercol C18 99 My (Stearyl Alcohol) takes the form of white granules or flakes, which are insoluble in water.
Emercol C18 99 My (Stearyl Alcohol) has a wide range of uses as an ingredient in lubricants, resins, perfumes, and cosmetics.
Emercol C18 99 My (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.
Emercol C18 99 My (Stearyl Alcohol), the ester of stearyl alcohol and heptanoic acid (enanthic acid), is found in most cosmetic eyeliners.
Emercol C18 99 My (Stearyl Alcohol) has also found application as an evaporation suppressing monolayer when applied to the surface of water.
Emercol C18 99 My (Stearyl Alcohol) is prepared from stearic acid or certain fats by the process of catalytic hydrogenation.
Emercol C18 99 My (Stearyl Alcohol) has low toxicity.
Emercol C18 99 My (Stearyl Alcohol) is a mixture of stearyl alcohol and cetyl alcohol forming a waxy, white mixture to be used in cosmetics.
This chemical is used to bring smoothness and thickness to the products while also providing hydrating properties.
While most alcohols are drying for the skin, Emercol C18 99 My (Stearyl Alcohol) traps water and treats skin dryness.
Emercol C18 99 My (Stearyl Alcohol) Chemical Properties
Melting point: 56-59 °C (lit.)
Boiling point: 210 °C15 mm Hg
Density: 0.812 g/mL at 25 °C (lit.)
Bulk density: 300kg/m3
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
Form: Flakes
Pka: 15.20±0.10(Predicted)
Specific Gravity: 0.812
Color: White
Odor: wh. unctuous flakes or gran., faint odor, bland taste
Explosive limit: ~8%
Water Solubility: insoluble
Merck: 14,8805
BRN: 1362907
Dielectric constant: 3.4（58℃）
LogP: 7.4
CAS DataBase Reference: 112-92-5(CAS DataBase Reference)
NIST Chemistry Reference: Emercol C18 99 My (Stearyl Alcohol) (112-92-5)
EPA Substance Registry System: Emercol C18 99 My (Stearyl Alcohol) (112-92-5)
Emercol C18 99 My (Stearyl Alcohol), or 1-octadecanol, is an organic compound classified as a saturated fatty alcohol with the formula CH3(CH2)16CH2OH.
Emercol C18 99 My (Stearyl Alcohol) occurs as hard, white, waxy pieces, flakes, or granules, which have a slight characteristic odor and a bland taste.
Emercol C18 99 My (Stearyl Alcohol) is soluble in alcohol, acetone, and ether, but insoluble in water.
Furthermore, Emercol C18 99 My (Stearyl Alcohol) is combustible.
Uses
Emercol C18 99 My (Stearyl Alcohol) is used as a surfactant in cosmetics.
Emercol C18 99 My (Stearyl Alcohol) effectively moisturizes hands and face with pheohydrane, which is a complex derived from the microalgae Chlorella Vulgaris and hydrolyzed algin found in sea water.
Emercol C18 99 My (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.
Emercol C18 99 My (Stearyl Alcohol) is a long chain primary alcohol that is used in the production of emulsions, textile oils, antifoam agents, and lubricants.
Other large scale applications include the manufacture of alkyl amines, tertiary amines, ethoxylates, halides/mercaptans, and polymerization stabilizers.
Emercol C18 99 My (Stearyl Alcohol) generally occurs as a mixture of solid alcohols whose primary constituent is 1-octadecanol.
Emercol C18 99 My (Stearyl Alcohol) occurs naturally in sperm whale oil and has been isolated from the hyperthermophilic bacterium Pyrococcus furiosus.
Emercol C18 99 My (Stearyl Alcohol) has been used to model the plant epicuticular wax layer for an investigation by differential scanning calorimetry and Fourier transform infrared spectroscopy.
The use of Emercol C18 99 My (Stearyl Alcohol) to prepare microsphere formulations for such compounds as paclitaxel and indomethacin has been described.
Pharmaceutical Applications
Emercol C18 99 My (Stearyl Alcohol) is used in cosmetics and topical pharmaceutical creams and ointments as a stiffening agent.
By increasing the viscosity of an emulsion, stearyl alcohol increases its stability.
Emercol C18 99 My (Stearyl Alcohol) also has some emollient and weak emulsifying properties, and is used to increase the water-holding capacity of ointments, e.g. petrolatum.
In addition, Emercol C18 99 My (Stearyl Alcohol) has been used in controlled-release tablets, suppositories, and microspheres.
Emercol C18 99 My (Stearyl Alcohol) has also been investigated for use as a transdermal penetration enhancer.
Preparation
Emercol C18 99 My (Stearyl Alcohol) is prepared commercially via Ziegler aluminum alkyl hydrolysis or the catalytic, high-pressure hydrogenation of stearyl acid, followed by filtration and distillation.
Emercol C18 99 My (Stearyl Alcohol) may also be derived from natural fats and oils.
Production Methods
Historically, Emercol C18 99 My (Stearyl Alcohol) was prepared from sperm whale oil but is now largely prepared synthetically by reduction of ethyl stearate with lithium aluminum hydride.
