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CAS Number: 68439-57-6 (same as sodium C14-16 olefin sulfonate)
Synonyms: AOS 1416 paste; Sodium C14-16 alpha-olefin sulfonate paste; Liquid alpha-olefin sulfonate; AOS-1416(P) (paste form)
Chemical Identity and Properties:
ASCO AOS-1416(P) is the paste (concentrated liquid) form of sodium C14-16 alpha-olefin sulfonate, manufactured by the same sulfonation process as ASCO Powder. The "(P)" designation indicates the paste form, which is a concentrated aqueous solution of the surfactant. This form is easier to handle and incorporate into liquid formulations compared to the powder form.
Typical Specifications:
Appearance: Clear to hazy viscous liquid (paste)
Active Matter: Typically 35–40% (may vary by manufacturer)
Apparent pH: 7.0–9.0
Unsulfonated Oil Content: <1.5%
Color (5% active solution): Typically <100 APHA
Viscosity: Highly viscous, may require pumping equipment or warming for easy transfer
Advantages of Paste Form:
Ease of Handling: Requires no dust control measures; can be pumped and metered directly
Rapid Solubilization: Dissolves more quickly in liquid formulations compared to powder
Reduced Processing Time: Eliminates the powder dissolution step in liquid formulation manufacturing
Consistent Activity: Provides consistent active matter content with minimal batch-to-batch variation
Applications:
ASCO AOS-1416(P) is used in the same applications as the powder form but is particularly suited for:
Liquid Detergents: Liquid laundry detergents, hand dishwashing liquids, and liquid hard surface cleaners
Shampoos and Body Washes: Personal care liquid formulations where the surfactant can be directly incorporated without pre-dissolution
Concentrated Cleaning Products: High-performance concentrated cleaners where active matter levels are critical
Formulations Requiring Precise Metering: Industrial and institutional cleaning products manufactured with automated liquid handling systems
Formulation Considerations:
When using ASCO AOS-1416(P) in formulations, formulators should consider:
Viscosity Effects: The high concentration of active surfactant contributes significantly to formulation viscosity; thickening agents may require adjustment
Compatibility: Compatible with other anionic, nonionic, and amphoteric surfactants; generally incompatible with cationic surfactants in concentrated systems
Preservation: Aqueous solutions may require preservatives to prevent microbial growth during storage
Temperature Sensitivity: May become highly viscous or exhibit phase separation at low temperatures; storage at moderate temperatures is recommended
SAFETY INFORMATION ABOUT ASCO AOS-1416(P)
First aid measures:
Description of first aid measures:
General advice:
Consult a physician.
Show this safety data sheet to the doctor in attendance.
Move out of dangerous area:
If inhaled:
If breathed in, move person into fresh air.
If not breathing, give artificial respiration.
Consult a physician.
In case of skin contact:
Take off contaminated clothing and shoes immediately.
Wash off with soap and plenty of water.
Consult a physician.
In case of eye contact:
Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
Continue rinsing eyes during transport to hospital.
If swallowed:
Do NOT induce vomiting.
Never give anything by mouth to an unconscious person.
Rinse mouth with water.
Consult a physician.
Firefighting measures:
Extinguishing media:
Suitable extinguishing media:
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas
Advice for firefighters:
Wear self-contained breathing apparatus for firefighting if necessary.
Accidental release measures:
Personal precautions, protective equipment and emergency procedures
Use personal protective equipment.
Avoid breathing vapours, mist or gas.
Evacuate personnel to safe areas.
Environmental precautions:
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.
Methods and materials for containment and cleaning up:
Soak up with inert absorbent material and dispose of as hazardous waste.
Keep in suitable, closed containers for disposal.
Handling and storage:
Precautions for safe handling:
Avoid inhalation of vapour or mist.
Conditions for safe storage, including any incompatibilities:
Keep container tightly closed in a dry and well-ventilated place.
Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Storage class (TRGS 510): 8A: Combustible, corrosive hazardous materials
Exposure controls/personal protection:
Control parameters:
Components with workplace control parameters
Contains no substances with occupational exposure limit values.
Exposure controls:
Appropriate engineering controls:
Handle in accordance with good industrial hygiene and safety practice.
Wash hands before breaks and at the end of workday.
Personal protective equipment:
Eye/face protection:
Tightly fitting safety goggles.
Faceshield (8-inch minimum).
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin protection:
Handle with gloves.
Gloves must be inspected prior to use.
Use proper glove
removal technique (without touching glove's outer surface) to avoid skin contact with this product.
Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices.
Wash and dry hands.
Full contact:
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:Dermatril (KCL 740 / Aldrich Z677272, Size M)
Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0.11 mm
Break through time: 480 min
Material tested:Dermatril (KCL 740 / Aldrich Z677272, Size M)
It should not be construed as offering an approval for any specific use scenario.
Body Protection:
Complete suit protecting against chemicals, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
Respiratory protection:
Where risk assessment shows air-purifying respirators are appropriate use a fullface respirator with multi-purpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls.
If the respirator is the sole means of protection, use a full-face supplied air respirator.
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).
Control of environmental exposure
Prevent further leakage or spillage if safe to do so.
Do not let product enter drains.
Discharge into the environment must be avoided.
Stability and reactivity:
Chemical stability:
Stable under recommended storage conditions.
Incompatible materials:
Strong oxidizing agents:
Hazardous decomposition products:
Hazardous decomposition products formed under fire conditions.
Carbon oxides, Nitrogen oxides (NOx), Hydrogen chloride gas.
Disposal considerations:
Waste treatment methods:
Product:
Offer surplus and non-recyclable solutions to a licensed disposal company.
Contact a licensed professional waste disposal service to dispose of this material.
Contaminated packaging:
Dispose of as unused product
