Stearyl alcohol fatty alcohol is a C18 fatty alcohol that gives formulations thickness, body, and a smooth waxy texture.
Stearyl alcohol fatty alcohol is especially useful in creams, lotions, conditioners, and ointments because it supports emulsion stability while improving skin feel.
Stearyl alcohol fatty alcohol is a practical structure-building ingredient when a formulation needs richness, viscosity, and soft emollient performance without using a harsh drying alcohol.
CAS Number: 112-92-5
EC Number: 204-017-6
Molecular Formula: C18H38O
Molecular Mass: 270.49 g/mol
Synonyms: Stearyl Alcohol, 1-Octadecanol, Octadecan-1-ol, Octadecyl Alcohol, n-Octadecanol, C18 Fatty Alcohol, C18 Alcohol, Stearic Alcohol, Alcohol C18, Linear C18 Alcohol, Saturated Fatty Alcohol, Primary Fatty Alcohol, Fatty Alcohol C18, Palmityl Carbinol, Stearyl Alcohol Flakes
Stearyl alcohol fatty alcohol is an organic compound classified as a saturated fatty alcohol with the formula C18H38O or CH3(CH2)17OH.
Stearyl alcohol fatty alcohol takes the form of white granules or flakes, which are insoluble in water.
Stearyl alcohol fatty alcohol has a wide range of uses as an ingredient in lubricants, resins, perfumes, and cosmetics.
Stearyl alcohol fatty 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 fatty alcohol and heptanoic acid (enanthic acid), is found in most cosmetic eyeliners.
Stearyl alcohol fatty alcohol has also found application as an evaporation suppressing monolayer when applied to the surface of water.
Stearyl alcohol fatty alcohol is a long-chain saturated fatty alcohol.
Stearyl alcohol fatty alcohol is a waxy white solid mainly used as an emollient, thickener, co-emulsifier, stabilizer, and texture-improving ingredient in cosmetic, pharmaceutical, and industrial formulations.
Because of its C18 fatty chain, Stearyl alcohol fatty alcohol gives formulations a rich, creamy consistency and helps improve viscosity, body, and emulsion stability.
Stearyl alcohol fatty alcohol is not the same as drying alcohols such as ethanol; instead, it is a fatty alcohol with softening and structure-building properties.
Stearyl alcohol fatty alcohol contains NLT 90.0% and NMT 102.0% of stearyl alcohol (C H O), the remainder consisting chiefly of related alcohols.
Stearyl alcohol fatty alcohol is obtained from sources of vegetable, animal, or synthetic origin.
Stearyl alcohol fatty alcohol is a vegetable-based, highly refined fatty alcohol.
Stearyl alcohol fatty alcohol's melting point 56 ? 60°C (133-140F).
Stearyl alcohol fatty alcohol's HLB 15.5 (give oil-in-water emulsions but only to a limited degree).
Stearyl alcohol fatty alcohol acts as co-emulsifier, skin conditioner, and superfatting agent.
Stearyl alcohol fatty alcohol has good thickening and stabilizing properties for all kinds of emulsions.
Stearyl alcohol fatty alcohol can be used as opacifier.
Stearyl alcohol fatty alcohol is a naturally occurring fatty alcohol that is a good emollient for the skin and the perfect thickening agent for formulations.
Stearyl alcohol fatty alcohol helps stabilize emulsions and adds opacity to impart beauty products with a more luxurious and creamy appearance.
Stearyl alcohol fatty alcohol is also an excellent foaming agent that allows for a better cleansing experience.
Stearyl alcohol fatty alcohol appears as a white, waxy solid in its raw form and has a mild, fatty odor.
Stearyl alcohol fatty alcohol can most commonly be found in conditioners, creams, lotions, lipsticks, and also deodorants.
Additionally, this ingredient is safe and has a low comedogenic rating.
The chemical formula of Stearyl alcohol fatty alcohol is C18H38O.
Natural fatty alcohols such as stearyl alcohol are derived from palm kernel oil and coconut oil.
Stearyl alcohol fatty alcohol is produced by converting oils into alcohol, distilling them, and hydrogenating them.
Stearyl alcohol fatty alcohol is used as an emulsifier, emollient, and thickener in many cosmetics and personal care products.
Stearyl alcohol fatty alcohol is an organic compound commonly called Stearyl Alcohol.
Fatty alcohols are a mixture of fatty acids or oils and alcohols.
They are versatile cosmetic ingredients in numerous skincare, haircare, and personal care products.
Uses of Stearyl Alcohol Fatty Alcohol:
Stearyl alcohol fatty alcohol is primarily used as a thickener and moisturizing agent to hydrate and soften the skin.
In products like creams and lotions, Stearyl alcohol fatty alcohol helps form a creamy texture that enhances the application and feel of the product.
Stearyl alcohol fatty alcohol is also effective in stabilizing oil-in-water emulsions which prevents the separation of ingredients in a formulation, in turn improving the consistency and longevity.
Stearyl alcohol fatty alcohol is also added to deodorants to stabilize it and enhance the texture.
In hair care products, this ingredient helps in thickening products like conditioners and shampoos and acts as a mild surfactant to aid the cleansing process.
Stearyl alcohol fatty alcohol is used in creams, lotions, ointments, conditioners, hair masks, emulsions, lubricants, resins, and wax-based systems.
Stearyl alcohol fatty alcohol helps increase viscosity, improve spreadability, stabilize oil-in-water emulsions, and give products a smooth, non-runny texture.
In cosmetic and personal care formulations, Stearyl alcohol fatty alcohol is commonly used as an emollient, consistency agent, co-emulsifier, and opacifying agent.
In industrial systems, Stearyl alcohol fatty alcohol can support lubrication, surface modification, wax blending, and emulsion stabilization.
Benefits of Stearyl Alcohol Fatty Alcohol in Haircare:
Long-chain fatty alcohols such as stearyl alcohol differ from the short chain or volatile alcohols such as propanol, ethanol, and isopropyl alcohol.
Short chain alcohol can strip the natural oil of your hair, making your hair look dry, frizzy, and brittle.
Contrary to this, long-chain fatty alcohol has a hydrating, soothing, and conditioning effect keeping your hair soft and silky.
Let's elucidate the benefits of Stearyl alcohol fatty alcohol in haircare.
Conditioners:
The emollient properties of Stearyl alcohol fatty alcohol are to keep your strands well-conditioned, soft, and shiny.
In addition to preventing moisture loss, Stearyl alcohol fatty alcohol makes your hair look soft, smooth, and glossy.
Improves the texture:
Stearyl alcohol fatty alcohol is known to improve the product's texture by improving the formulation's consistency.
Stearyl alcohol fatty alcohol acts as a thickening agent, giving the product a rich, creamy consistency, thus making it more appealing to your senses.
Emulsifier:
Emulsifier plays a vital role in providing stability to the product formula.
Most hair care products contain oil and water-based ingredients in the product formula.
Stearyl alcohol fatty alcohol binds the immiscible liquids such as oil and water together in the product.
Stearyl alcohol fatty alcohol binds the product's ingredients and prevents them from separating in the formula.
Improve the barrier function:
Stearyl alcohol fatty alcohol is used as an emollient to hydrate and condition your scalp and hair.
As a result, your skin remains hydrated longer due to the protective barrier created by these fatty acids.
Stearyl alcohol fatty alcohol is good for shampoos, conditioners, and hair masks to improve dry and flaky skin.
Emollients are essential for maintaining the scalp's natural barrier, which is crucial to scalp health.
Disrupting the skin's natural barrier can lead to dry scalp conditions such as dry, itchy, and flaky scalp.
Stearyl alcohol fatty alcohol's emollient qualities help to smoothen and detangle hair.
This ingredient is found in many hair care products.
Wetting & dispersing agents:
This fatty alcohol helps reduce the molecules' surface tension, facilitating better absorption of the ingredients.
Stearyl alcohol fatty alcohol improves the product's spreadability, allowing it to glide through your strands, thus improving the efficacy of the product formula.
Origin of Stearyl Alcohol Fatty Alcohol:
Stearyl Alcohol is a fatty alcohol that comes from natural sources such as plant oils or animal fats.
In the modern days, plant-based sources such as coconut or palm oil are preferred over animal sources like tallow.
These plant oils are first hydrolyzed or saponified to release fatty acids - from which the stearic acid is separated.
Stearyl alcohol fatty alcohol then undergoes the hydrogenation process where hydrogen is added to stearic acid in the presence of a catalyst.
This results in the formation of Stearyl alcohol fatty alcohol which is purified to remove any impurities.
Stability and Reactivity of Stearyl Alcohol Fatty Alcohol:
Chemical stability:
Stearyl alcohol fatty alcohol is expected to be stable under recommended handling and storage conditions.
Reactivity:
No hazardous reaction is expected under normal industrial use.
Conditions to avoid:
Excessive heat, open flames, dust formation, contamination, and unsuitable storage conditions should be avoided.
Incompatible materials:
Strong oxidizing agents and highly reactive chemicals should be avoided.
Hazardous decomposition products:
Thermal decomposition or fire may produce carbon oxides and irritating fumes.
Handling and Storage of Stearyl Alcohol Fatty Alcohol:
Handling:
Stearyl alcohol fatty alcohol should be handled according to good industrial hygiene and safety practices.
Safe handling:
Avoid dust formation and avoid contact with eyes and prolonged skin exposure.
Storage:
Store in a cool, dry, and well-ventilated area.
Container:
Keep containers tightly closed when not in use.
Storage protection:
Protect from heat, moisture, ignition sources, and incompatible materials.
First Aid Measures of Stearyl Alcohol Fatty Alcohol:
Inhalation:
Move the person to fresh air if dust or fumes are inhaled.
Skin contact:
Wash affected skin with water and mild soap.
Eye contact:
Rinse carefully with plenty of water for several minutes.
Ingestion:
Rinse mouth with water and seek medical advice if discomfort occurs.
Firefighting Measures of Stearyl Alcohol Fatty Alcohol:
Suitable extinguishing media:
Water spray, foam, dry chemical powder, or carbon dioxide may be used.
Fire hazards:
Heating or fire may produce irritating fumes and carbon oxides.
Protective equipment:
Firefighters should wear protective clothing and self-contained breathing apparatus.
Accidental Release Measures of Stearyl Alcohol Fatty Alcohol:
Personal precautions:
Avoid dust formation and avoid contact with eyes.
Environmental precautions:
Prevent large quantities from entering drains, soil, or surface waters.
Cleanup method:
Sweep or collect carefully and place into suitable containers.
Disposal:
Dispose of according to local regulations.
Exposure Controls / Personal Protection of Stearyl Alcohol Fatty Alcohol:
Engineering controls:
Use adequate ventilation if dust, vapor, or fumes may form.
Eye protection:
Safety glasses are recommended.
Hand protection:
Protective gloves are recommended for prolonged handling.
Skin protection:
Suitable work clothing is recommended.
Respiratory protection:
Use dust protection if airborne particles may occur.
Identifiers of Stearyl Alcohol Fatty Alcohol:
CAS number: 112-92-5
EC number: 204-017-6
Molecular formula: C18H38O
Linear formula: CH3(CH2)17OH
Molecular mass: 270.49 g/mol
PubChem CID: 8221
CAS Number: 112-92-5
Chem/IUPAC Name: Octadecan-1-ol
EINECS/ELINCS No: 204-017-6
COSING REF No: 38319
CAS Number: 112-92-5
ChEBI: CHEBI:32154
ChEMBL: ChEMBL24640
ChemSpider: 7928
ECHA InfoCard: 100.003.652
PubChem CID: 8221
UNII: 2KR89I4H1Y
CompTox Dashboard (EPA): DTXSID8026935
InChI: InChI=1S/C18H38O/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19/h19H,2-18H2,1H3
Key: GLDOVTGHNKAZLK-UHFFFAOYSA-N
InChI=1/C18H38O/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19/h19H,2-18H2,1H3
Key: GLDOVTGHNKAZLK-UHFFFAOYAZ
SMILES: OCCCCCCCCCCCCCCCCCC
Properties of Stearyl Alcohol Fatty Alcohol:
Chemical formula: C18H38O
Molar mass: 270.501 g·mol−1
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 332.9 K)
Boiling point: 210 °C (410 °F; 483 K) at 15 mmHg (2.0 kPa)
Solubility in water: 1.1×10−3 mg/L
Appearance: White waxy solid
Physical form: Scales, flakes, beads, pastilles, or granules
Odor: Odorless or faint fatty odor
Melting point: Approximately 56–60 °C
Boiling point: Approximately 335 °C
Flash point: Approximately 195 °C
Water solubility: Practically insoluble / very low solubility
Specifications of Stearyl Alcohol Fatty Alcohol:
Acid Value (mg KOH/g): 0.1 Max
Saponification Value (mg KOH/g): 0.5 Max
Iodine Value (% I2absorbed): 0.3 Max
Hydroxyl Value (mgKOH/g): 200-210
Hydrocarbon (%): 0.50 max
Color (APHA): 10 Max
Moisture Content (%): 0.2 Max
Fatty Alcohol Content (%): 99 min
Names of Stearyl Alcohol Fatty Alcohol:
Preferred IUPAC name:
Octadecan-1-ol
Other names:
1-Octadecanol