SODIUM ALPHA OLEFIN SULFONATE
SODIUM ALPHA OLEFIN SULFONATE
Sodium alpha olefin sulfonate is an anionic surfactant commonly used in personal care products like shampoos, body washes, and facial cleansers, where it helps remove dirt, oils, and impurities while producing a stable, rich lather.
Sodium alpha olefin sulfonate is also a powerful air-entraining, wetting, and plasticizing agent for the building industry, significantly improving the workability, pumpability, and stability of mineral-based building materials like plasters and mortars.
Sodium alpha olefin sulfonate is biodegradable, environmentally friendly, and compatible with various surfactants, making it a preferred choice in both industrial and consumer-grade formulations for its mild yet effective performance.
CAS Number: 68439-57-6
EC Number: 270-090-8
Chemical Formula: C12H25SO3Na
Molecular Weight: approx. 274.4 g/mol
Synonyms: AOS, Sodium alpha olefin sulfonate, sodium alpha-olefin sulfonate (C14-16), sodium C14-16 olefin sulfonate, Sodium C12-14 Olefin Sulfonate, Sodium alpha olefin sulfonate, SODIUM alpha-OLEFIN SULFONATE, Sodium a-olefin sulfonate, Sodium alpha-olefin (c14-16) sulfonate, BIO-TERGE AS-40K, Alpha Olefin Sulfonate, BIOTERGE AS 40 K, Hostapur OSB, Hostapur OS Liquid, Nansa, Sodium alpha olefin sulfonate, Sodium C 14 – 16 Olefin Sulfonate, Sodium Linear Alpha Olefin Sulfonate
Sodium alpha olefin sulfonate is an anionic surfactant commonly used in a wide range of industrial and consumer products, primarily in personal care and cleaning formulations.
Sodium alpha olefin sulfonate is derived from the sulfonation of alpha-olefins, which are hydrocarbons with a double bond at the alpha position of the molecule.
Sodium alpha olefin sulfonate is typically used for its excellent foaming, cleansing, and emulsifying properties. In personal care products, such as shampoos, body washes, facial cleansers, and toothpaste, Sodium alpha olefin sulfonate functions as a primary surfactant that helps remove dirt, oils, and impurities while producing a stable, rich lather.
Due to its mildness, Sodium alpha olefin sulfonate is often included in formulations designed for sensitive skin, as it is less likely to cause irritation compared to harsher surfactants like Sodium Lauryl Sulfate (SLS).
Sodium alpha olefin sulfonate is also biodegradable, making it an environmentally friendly alternative to other surfactants that may persist in the environment.
Sodium alpha olefin sulfonate is highly effective in both hard and soft water and works well in a variety of pH ranges, offering versatility for different formulations.
In addition to its use in personal care products, Sodium alpha olefin sulfonate is also found in industrial and household cleaning agents, such as laundry detergents, dishwashing liquids, and all-purpose cleaners.
In these applications, Sodium alpha olefin sulfonate helps to break down grease, oils, and other contaminants, contributing to the product’s cleaning power.
Sodium alpha olefin sulfonate is compatible with a variety of other surfactants and can enhance the performance of the overall formulation, including improving foam volume and stability.
Sodium alpha olefin sulfonate is often preferred in formulations because it combines high performance with a gentle profile, making it suitable for both professional and consumer-grade products.
Sodium alpha olefin sulfonate is typically available as a clear or slightly hazy liquid and is stable under a wide range of conditions, including temperature and pH variations.
However, care must be taken when handling concentrated forms, as Sodium alpha olefin sulfonate can be irritating to the skin and eyes in higher concentrations.
Proper storage and handling are essential to ensure optimal performance and safety in its various applications.
Sodium alpha olefin sulfonate provides quick wetting and dispersion of building mixes.
Sodium alpha olefin sulfonate is a strong blowing agent, as well as a wetting and plasticizing agent for ready-made mineral plasters (adhesive and machine plasters), masonry mortars and putties.
The air pores created by Sodium alpha olefin sulfonate are stable and significantly reduce shrinkage and associated cracking, especially for cement and cement-lime mortars.
Another advantage is high frost resistance and reduced efflorescence from the solution.
Sodium alpha olefin sulfonate is also suitable for the production of plaster and masonry mixtures, as well as as the main product in the production of strong blowing agents in the industry of additives to building materials (for example, products for the production of foam concrete, etc.).
Sodium alpha olefin sulfonate provides quick wetting and dispersion of building mixes (e.g. for machine application of plasters), reduced tack and therefore easy processing and improved pumping properties.
Clotting, for example with fine building mixes, can be significantly reduced or eliminated with Sodium alpha olefin sulfonate.
Sodium alpha olefin sulfonate is a white to slightly beige powder anionic surfactant for industrial applications.
Sodium alpha olefin sulfonate is composed of C14/C16 alpha olefin sulphonate sodium salt with strong wetting, cleaning action, and good foaming power.
Sodium alpha olefin sulfonate is a powerful air entraining, wetting and plasticizing agent for mineral based dry premixed plasters, renderings and trowelling compounds.
Sodium alpha olefin sulfonate forms air pores with excellent stability, reduces shrinkage particularly of cement/cement-lime based mortar systems and prevents formation of cracks.
Other advantages are the higher frost resistance and reduced tendency of efflorescence in hardened mortar.
Sodium alpha olefin sulfonate leads to better wetting and dispersion of the building materials mixtures (e. g. of machine applied plasters and renderings), reduces tackiness and improves workability and pumpability of wet mortars.
Based on long-chain olefin sulphonate.
Acts as a powerful air-entraining, wetting and plasticizing agent for the building industry.
Sodium alpha olefin sulfonate is anionic in nature.
Forms the air pores with excellent stability, reduces the shrinkage particularly of cement resp.
Cement-lime based mortar systems and prevents the formation of cracks.
Other advantages are the higher frost resistance and reduced tendency to efflorescence of hardened mortar.
Is a suitable additive for masonry cements and a powerful foaming agent for any mineral based building material (f. e. for manufacturing of foamed light weight concrete).
Leads to better wetting and dispersion of the building materials mixtures (e. g. of machine applied plasters and renderings), reduces the tackiness (occasionally caused by high dosage of methylcellulose) as well as improves the workability and pumpability of wet mortars.
Application of Sodium Alpha Olefin Sulfonate:
Sodium alpha olefin sulfonate is a strong blowing agent, as well as a wetting and plasticizing agent for ready-made mineral plasters (adhesive and machine plasters), masonry mortars and putties.
The air pores created by Sodium alpha olefin sulfonate are stable and significantly reduce shrinkage and associated cracking, especially for cement and cement-lime mortars.
Another advantage of Sodium alpha olefin sulfonate is high frost resistance and reduced efflorescence from the solution.
Sodium alpha olefin sulfonate is also suitable for the production of plaster and masonry mixtures, as well as as the main product in the production of strong blowing agents in the industry of additives to building materials (for example, products for the production of foam concrete, etc.).
Sodium alpha olefin sulfonate provides quick wetting and dispersion of building mixes (e.g. for machine application of plasters), reduced tack and therefore easy processing and improved pumping properties.
Clotting, for example with fine building mixes, can be significantly reduced or eliminated with Sodium alpha olefin sulfonate.
Applications of Sodium Alpha Olefin Sulfonate:
Dairy & food cleaning
Hand dishwashing
Hard surface cleaning
Industrial cleaners
Laundry powder & tabs
Toilet & hygienic cleaning
Vehicle washing
Pre-treatment
Suspension concentrate
Water dispersible granules
Laundry pre-treatment
Laundry
The recommended concentration should be 0.005 – 0.05 % by weight, calculated on dry mortar.
Uses of Sodium Alpha Olefin Sulfonate:
Sodium alpha olefin sulfonateis based on long-chain olefin sulphonate.
Sodium alpha olefin sulfonateis acts as a powerful air-entraining, wetting and plasticizing agent for the building industry.
Sodium alpha olefin sulfonateis anionic in nature.
Sodium alpha olefin sulfonateis forms the air pores with excellent stability, reduces the shrinkage particularly of cement resp. cement-lime based mortar systems and prevents the formation of cracks.
Sodium alpha olefin sulfonateis other advantages are the higher frost resistance and reduced tendency to efflorescence of hardened mortar.
Sodium alpha olefin sulfonateis a suitable additive for masonry cements and a powerful foaming agent for any mineral based building material (f. e. for manufacturing of foamed light weight concrete).
Sodium alpha olefin sulfonateis leads to better wetting and dispersion of the building materials mixtures (e. g. of machine applied plasters and renderings), reduces the tackiness (occasionally caused by high dosage of methylcellulose) as well as improves the workability and pumpability of wet mortars.
Sodium alpha olefin sulfonate is a white to slightly beige powder anionic surfactant for industrial applications.
Sodium alpha olefin sulfonateis composed of C14/C16 alpha olefin sulphonate sodium salt with strong wetting, cleaning action, and good foaming power.
Sodium alpha olefin sulfonate is a powerful air entraining, wetting and plasticizing agent for mineral based dry premixed plasters, renderings and trowelling compounds.
Sodium alpha olefin sulfonate forms air pores with excellent stability, reduces shrinkage particularly of cement/cement-lime based mortar systems and prevents formation of cracks.
Sodium alpha olefin sulfonateis other advantages are the higher frost resistance and reduced tendency of efflorescence in hardened mortar.
Sodium alpha olefin sulfonate leads to better wetting and dispersion of the building materials mixtures (e. g. of machine applied plasters and renderings), reduces tackiness and improves workability and pumpability of wet mortars.
Sodium alpha olefin sulfonate is used as air entraining and wetting agent for mortars and plasters based on cement, gypsum or lime with the following properties:
Sodium alpha olefin sulfonate leads to a faster wetting of the solid particles of the dry admixture.
Sodium alpha olefin sulfonate is rapidly soluble and develops the mirco foam in a short period of time.
Sodium alpha olefin sulfonate enables fast air-entrainment in mortars and plasters and a controllable air content of 20 – 35%.
Sodium alpha olefin sulfonate builds pores with strong stability in the cement or cement – lime mortar or gypsum plaster board.
Sodium alpha olefin sulfonate improves the plasticity and workability of plasters.
Sodium alpha olefin sulfonate is highly efficient and raises the performance of the plaster of mortar.
Addition levels: 0.005 – 0.025 wt.-% on the dry ingredients of the building mixture
Usage Areas of Sodium Alpha Olefin Sulfonate:
Detergents:
Sodium alpha olefin sulfonate has a strong wetting and cleaning action and good foaming power.
The foam quality is excellent, with high stability.
Sodium alpha olefin sulfonate is used for the production of detergent and cleaning agent powders.
Because of Sodium alpha olefin sulfonate low stickiness, Sodium alpha olefin sulfonate is particularly suitable for use in foam cleaners for upholstery and carpets.
Textile and leather finishing:
Sodium alpha olefin sulfonate is also used in the textile and leather industries as a wetting agent, detergent and foaming agent.
Building and constructions:
Sodium alpha olefin sulfonate is a strong air entraining and wetting agent for mortars and concrete.
Furthermore Sodium alpha olefin sulfonate acts as a plasticizer and frost-proofer.
Sodium alpha olefin sulfonate builds pores with strong stability in the cement or cement – lime mortar.
Sodium alpha olefin sulfonate leads to a faster wetting and dispersing of the mixture.
Dosage: 0.005 – 0.05 wt.-% on the dry ingredients of the building mixture.
Handling and Storage of Sodium Alpha Olefin Sulfonate:
Sodium alpha olefin sulfonate must be stored in a dry place in sealed containers to prevent moisture absorption and caking of the powder.
Advice on protection against fire and explosion:
Take precautionary measures against build-up of electrostatic charges, e.g earthing during loading and off-loading operations.
Keep away from sources of ignition – No smoking.
Advice on safe handling:
Store at temperatures less than 40 C (104 F).
Avoid dust formation.
Routine housekeeping should be instituted to ensure that dusts do not accumulate on surfaces.
Take measures to prevent the build up of electrostatic charge.
Store in a dry place.
Keep away from heat.
Keep away from flames and sparks.
Wear suitable protective equipment.
Keep tightly closed in a dry and cool place.
Do not breathe vapours/dust.
Do not get in eyes or mouth or on skin.
Technical measures/Precautions:
Store in original container.
Keep container closed.
Store in a cool, dry, well-ventilated area.
Storage and Shelf Life:
Sodium alpha olefin sulfonate must be stored in a dry place in sealed containers to prevent moisture absorption and caking of the powder.
The shelf life is at least two years when stored in tightly closed containers at 20-25°C in a clean and aerated place.
After this period Sodium alpha olefin sulfonate should be analyzed for extension of the shelf life.
Stability and Reactivity of Sodium Alpha Olefin Sulfonate:
Reactivity:
No dangerous reaction known under conditions of normal use.
Chemical stability:
Stable under normal conditions.
Possibility of hazardous reactions:
Dust can form an explosive mixture in air.
Stable
Conditions to avoid:
Keep away from heat.
Keep away from flames and sparks.
Incompatible materials:
not known
Hazardous decomposition products:
In case of fire hazardous decomposition products may be produced such as: Sulphur oxides
First Aid Measures of Sodium Alpha Olefin Sulfonate:
General advice:
Remove/Take off immediately all contaminated clothing.
If inhaled:
Move the victim to fresh air.
Give oxygen or artificial respiration if needed.
Get immediate medical advice/ attention.
Never give anything by mouth to an unconscious person.
In case of skin contact:
Wash thoroughly with soap and water for 15 minutes.
If skin irritation occurs, seek medical attention.
In case of eye contact:
Hold eyelids apart and flush eyes with plenty of water for at
least 15 minutes.
Get medical attention.
If swallowed:
Immediately call a POISON CENTER/doctor.
Most important symptoms and effects, both acute and delayed:
The possible symptoms known are those derived from the labelling.
No additional symptoms are known.
Notes to physician:
None known.
Firefighting Measures of Sodium Alpha Olefin Sulfonate:
Suitable extinguishing media:
Water spray jet
Foam
Unsuitable extinguishing media:
Dry powder
Carbon dioxide (CO2)
High volume water jet
Specific hazards during firefighting:
In case of fires, hazardous combustion gases are formed:
Carbon monoxide (CO)
Sulphur dioxide (SO2)
Emits toxic fumes under fire conditions.
Sodium alpha olefin sulfonate presents no unusual fire or explosion hazards while sealed in a shipping container.
During usage, if a dust cloud is generated, organic powders have the potential to be explosive with static spark or flame initiation.
Further information:
Exercise caution when fighting any chemical fire.
Use NIOSH approved self-contained breathing apparatus and full protective clothing.
Special protective equipment for firefighters:
Self-contained breathing apparatus
Accidental Release Measures of Sodium Alpha Olefin Sulfonate:
Personal precautions, protective equipment and emergency procedures:
Avoid dust formation.
Wear suitable protective equipment.
Keep away sources of ignition.
Contain spill.
Ensure adequate ventilation and wear appropriate personal protective equipment.
Collect onto inert absorbent.
Place in sealable container.
Do not allow to contaminate water sources or sewers.
Environmental precautions:
Do not allow to enter drains or waterways
Methods and materials for containment and cleaning up:
Pick up mechanically.
Rinse away rest with water.
Identifiers of Sodium Alpha Olefin Sulfonate:
Chemical Name: 68439-57-6
Product Function: Surfactant (Anionic)
Chemical Type: Sulfonates
CAS Number: 68439-57-6
EC Number: 270-090-8
Chemical Formula: C12H25SO3Na
Molecular Weight: approximately 274.4 g/mol
SMILES: CCCCCCCCCCCCS(=O)([O-])Na+
InChI Key: HGOAVMXYMNIDIC-UHFFFAOYSA-M
UNII: 0D98Y7EFL9
Appearance: Solid
Active Substance (ca.): 90%
Chemical Description: Alpha olefin sulfate, sodium salt
Cloud Point method: –
Cloud Point [°C]: –
Water content: max. 2.0%
HLB (calc.): –
EPA exempted from tolerance under 40 CFR §180: 920
Grade: Technical
Form: Powder
Appearance: solid
Bulk Density: Approximate 300 kg/m3
California Prop 65: Sodium alpha olefin sulfonate does not contain any chemicals known to State of California to cause cancer, birth defects, or any other reproductive harm.
Color: yellow
Flash Point: Not applicable
Odor: odorless
Partition Coefficient: Pow: 20 °C (68 °F) log Pow: -1.3 @ 20 °C (68 °F)
pH: 11-Oct
Thermal Decomposition: > 370 °C (698 °F)
Properties of Sodium Alpha Olefin Sulfonate:
Active content: About 90 %
Ionicity: Anionic
Appearance at 20°C: Fine, slightly yellowish powder
pH of a 1% aqueous solution: 10 – 11
Solubility at 20 °C: Sodium alpha olefin sulfonate is soluble in water.
Bulk density: About 300 g/L
Sodium sulfate content: Max. 5.5 %
Sodium carbonate + bicarbonate content: Max. 5.2 %
Biodegradability: Sodium alpha olefin sulfonate is readily biodegradable.
Composition: Alpha-olefin sulfonate, sodium salt
Names of Sodium Alpha Olefin Sulfonate:
Regulatory process names:
Sulfonic acids, C14-16-alkane hydroxy and C14-16-alkene, sodium salts
Sulfonic acids, C14-16-alkane hydroxy and C14-16-alkene, sodium salts
IUPAC Names:
Olefine sulphonate
Sodium (C14-16) olefin sulfonate
SODIUM (C14-C16) OLEFIN SULFONATE
sodium, C14-16-alkane hydroxy and C14-16-alkene sulphonate
Sulfonic acid, C14-16-alkane and C14-16-alkene, sodium salts
Sulfonic acids, C14-16 (even numbered)-alkane hydroxy and C14-16 (even numbered)-alkene, sodium salts
Sulfonic acids, C14-16-alkane hydroxy and C14-16-alkene, sodium salts
Sulfonic acids, C14-16-alkene, sodium salts
Sulphonic Acids, C14-16 – Alkane hydroxy C14-16 -Alkene, sodium salt