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Ceteareth-11 is used in hair dyes, deodorants, and sun- & body care products.
Ceteareth-11 is used to create creamy, stable emulsions in hair dyes, skincare products, and sun care formulations.
Ceteareth-11 helps to disperse ingredients evenly, providing a consistent texture and enhancing the product's feel.
CAS Number: 68439-49-6
EC Number: 500-212-8
Chem/IUPAC Name: C16-18 alcohols, ethoxylated (11 mol EO average molar ratio)
Molecular Formula: C₁₆–C₁₈H₃₄–₆₆O₁₁
Molecular Weight: Approximately 600 – 800 g/mol
SYNONYMS:
CETEARETH-11, EMPILAN KM11, MARLIPAL 1618/11, PEG-11 CETYL/STEARYL ETHER, POLYETHYLENE GLYCOL (11) CETYL/STEARYL ETHER, POLYOXYETHYLENE (11) CETYL/STEARYL ETHER, alcohols C16-18 ethoxylated (peg-11), C16-18 alcohols, ethoxylated (11 mol EO average molar ratio), hetoxol CS-11, peg-11 cetyl/stearyl ether, polyethylene glycol (11) cetyl/stearyl ether, polyoxyethylene (11) cetyl/stearyl alcohol ether, polyoxyethylene (11) cetyl/stearyl ether, alcohols C16-18 ethoxylated (PEG-11), C16-18 alcohols, ethoxylated (11 mol EO average molar ratio), Hetoxol CS-11, PEG-11 cetyl/stearyl ether, Polyethylene glycol (11) cetyl/stearyl ether, Polyoxyethylene (11) cetyl/stearyl alcohol ether, Polyoxyethylene (11) cetyl/stearyl ether
Ceteareth-11 acts as an O/W non-ionic emulsifier.
Ceteareth-11 is a bio-based grade.
Ceteareth-11 can be added in low dosages and provides good stability.
Ceteareth-11 is suitable for creams, ointments and lotions.
Ceteareth-11 has a shelf life of 36 months.
Ceteareth-11 is present in 0.01% of cosmetics.
Ceteareth-11 is an effective emulsifier that provides excellent stabilizing and thickening properties in personal care formulations.
Ceteareth-11 is a polyethylene glycol ether (ethoxylated) of a mixture of cetyl and stearyl alcohols, with about 11 moles of ethylene oxide per molecule.
(i.e. “C16-18 alcohols, ethoxylated (11 mol EO average)”).
Because of its moderate amount of ethoxylation (11 EO), Ceteareth-11 offers compromise between hydrophilicity and lipophilicity — enough hydrophilic “tail” to help mix with water, enough lipophilic portion (cetyl/stearyl alcohol base) to bind or help dissolve oils/emollients.
This makes Ceteareth-11 good for “balancing” in formulations.
(i.e. helping solubilize oils, but not being too water-soluble so that the “feel” is preserved).
USES and APPLICATIONS of CETEARETH-11:
Ceteareth-11 is used in things like creams, lotions, facial cleansers, hair conditioners, styling products as emulsifier or thickening aid.
Ceteareth-11 is an effective emulsifier that provides excellent stabilizing and thickening properties in personal care formulations.
Ceteareth-11 is used in hair dyes, deodorants, and sun- & body care products.
Ceteareth-11 is used to create creamy, stable emulsions in hair dyes, skincare products, and sun care formulations.
Ceteareth-11 helps to disperse ingredients evenly, providing a consistent texture and enhancing the product's feel.
Ceteareth-11 acts as a non-ionic surfactant / emulsifier: helps form stable emulsions where one has oil + water phases (especially oil-in-water emulsions) in creams, lotions, sunscreens, skin care & hair care formulations.
Ceteareth-11 improves texture and spreadability of cosmetic products: helps lotions feel smooth, not greasy, helps the product spread evenly on skin.
Ceteareth-11 works over a fairly broad range of pH and with many kinds of oils & actives (compatible with other formulation ingredients) due to its non-ionic nature.
FUNCTION(S) of CETEARETH-11 IN COSMETIC PRODUCTS
*SURFACTANT - CLEANSING
Surface-active agent to clean skin, hair and / or teeth.
*SURFACTANT - EMULSIFYING
Ceteareth-11 allows the formation of finely dispersed mixtures of oil and water (emulsions).
FUNCTIONS of CETEARETH-11:
*Cleansing Agent,
*Emulsifier
CHEMICAL STRUCTURE of CETEARETH-11:
Ceteareth-11 is a non-ionic surfactant produced by ethoxylation of cetearyl alcohol (a mixture of cetyl and stearyl alcohols) with an average of 11 ethylene oxide (EO) units.
General Structure:
C₁₆–C₁₈H₃₄–₆₆O–(C₂H₄O)₁₁–OH
Here:
C₁₆–C₁₈H₃₄–₆₆O represents the cetearyl alcohol backbone.
(C₂H₄O)₁₁ represents the ethylene oxide units.
FUNCTIONS (INCI) of CETEARETH-11:
*Emulsifying agent:
Ceteareth-11 promotes the formation of intimate mixtures between immiscible liquids by modifying the interfacial tension (water and oil).
*Surfactant:
Ceteareth-11 reduces the surface tension of cosmetics and contributes to the even distribution of the product during use.
WHAT IS IT?
Ceteareths (Ceteareth-2, Ceteareth-3, Ceteareth-4, Ceteareth-5, Ceteareth-6, Ceteareth-7, Ceteareth-8, Ceteareth-9, Ceteareth-10, Ceteareth-11, Ceteareth-12, Ceteareth-13, Ceteareth-14, Ceteareth-15, Ceteareth-16, Ceteareth-17, Ceteareth-18, Ceteareth-20, Ceteareth-22, Ceteareth-23, Ceteareth-24, Ceteareth-25, Ceteareth-27, Ceteareth-28, Ceteareth-29, Ceteareth-30, Ceteareth-33, Ceteareth-34, Ceteareth-40, Ceteareth-50, Ceteareth-55, Ceteareth-60, Ceteareth-80, Ceteareth-100) are liquids to waxy solids.
In cosmetics and personal care products, Ceteareth ingredients are used in skin care products, moisturizers, hair conditioners, suntan and indoor tanning products and hair dyes, colors, and tints.
WHY IS IT USED?
Ceteareth-2 to -18, and Ceteareth-22, help to form emulsions by reducing the surface tension of the substances to be emulsified.
Ceteareth-22 is also used to decrease the thickness of liquid cosmetics and personal care products.
Ceteareth-20 to -40 help other ingredients to dissolve in a solvent in which they would not normally dissolve, and along with Ceteareths-50 to -100, clean the skin and hair by helping water to mix with oil and dirt so that these substances can be rinsed away.
SCIENTIFIC FACTS
Ceteareths are made from cetearyl alcohol, which is a mixture of cetyl and stearyl alcohol, and ethylene oxide.
The numerical value represents the average number of molecules of ethylene oxide added to generate the specific Ceteareth ingredient.
For example, Ceteareth-2 is made by reacting Cetearyl Alcohol with an average of 2 molecules of ethylene oxide.
PHYSICAL and CHEMICAL PROPERTIES of CETEARETH-11:
INCI Name: Ceteareth-11
CAS Number: 68439-49-6
EINECS / EC Number: 500-212-8
Appearance: White to off-white waxy flakes or pellets (solid form)
Solubility / Dispersibility: Dispersible in water; more readily soluble when warmed or in combination with other solubilizing agents
HLB (Hydrophilic-Lipophilic Balance): ≈ 12 (moderate HLB)
Ethylene Oxide Units: About 11 moles of EO average per molecule
Molecular Weight: It is a mixture, so no precise single molecular weight;
averages vary depending on chain lengths of cetyl/stearyl and exact distribution of EO units.
Melting / Softening Point: Approximate melting/softening point ~40-50 °C (fats/ethoxylates) in some supplier data.
Odor / Color: Mild, waxy odor; color white to off-white.
Product: Ceteareth-1
CAS Number: 68439-49-6
EINECS / EC Number: 500-212-8
Chem/IUPAC Name: C16-18 alcohols, ethoxylated (11 mol EO average molar ratio)
Molecular Formula: C₁₆–C₁₈H₃₄–₆₆O₁₁
Molecular Weight: Approximately 600 – 800 g/mol
Appearance: White to off-white waxy solid or flakes
Odor: Slight characteristic odor
Melting Point: ~55–60 °C
Density: ~0.87–0.995 g/cm³ (at 21°C)
Vapor Pressure: 0–5 Pa (at 20°C)
Water Solubility: Dispersible in water
HLB (Hydrophilic-Lipophilic Balance): ~11
Usage Level: Typically 1–10%
Flash Point: >100 °C
Compatibility: Compatible with organic solvents and oils
Foaming Behavior: Low foaming
FIRST AID MEASURES of CETEARETH-11:
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation:
Fresh air.
*In case of skin contact:
Take off immediately all contaminated clothing.
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact:
Rinse out with plenty of water.
Call in ophthalmologist.
Remove contact lenses.
*If swallowed:
After swallowing:
Immediately make victim drink water (two glasses at most).
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available
ACCIDENTAL RELEASE MEASURES of CETEARETH-11:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Observe possible material restrictions.
Take up dry.
Dispose of properly.
Clean up affected area.
FIRE FIGHTING MEASURES of CETEARETH-11:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2)
Foam
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.
EXPOSURE CONTROLS/PERSONAL PROTECTION of CETEARETH-11:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A
-Control of environmental exposure:
Do not let product enter drains.
HANDLING and STORAGE of CETEARETH-11:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.
Dry.
STABILITY and REACTIVITY of CETEARETH-11:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available
