About this product
AOS — Alpha Olefin Sulphonate, also written as sodium alpha olefin sulfonate, CAS 68439-57-6 — is an anionic surfactant used by detergent and cleaning-product formulators. We stock the liquid / paste grade at 38–40% active matter, supplied to the manufacturer's published specification (Godrej Alfodet AOS liquid grade basis) in 50 kg and 230 kg HDPE drums. It is held at our Redhills warehouse in Chennai for dispatch across South India. Powder-grade requirements are quoted separately on enquiry.
AOS (Paste / Liquid / Powder) at a glance
- AOS full form
- Alpha Olefin Sulfonate
- Also known as
- Sodium alpha olefin sulfonate · Sodium C14-16 olefin sulfonate
- CAS number
- 68439-57-6Representative CAS — this is a mixture, and the exact CAS varies by grade.
- HSN code
- 3402 11 90
A mixture has no single molecular formula. Full grade and property values are in the specifications below. More lookups: chemical abbreviations list · CAS number reference.
Applications & Uses
Safety & Technical Documents
MSDS / SDS
Technical data sheet (TDS) & Certificate of Analysis
Batch Certificate of Analysis (CoA) · supplied with every delivery
Need another sheet? Browse the full SDS & TDS library — safety and technical data sheets for every product we stock.
Product DataGrades & Technical Specifications
Grades & Technical Specifications
Physical Properties
- Appearance
- Pale yellow clear liquid / paste (liquid / paste grade)
- Assay
- Active matter 38–40% mass (liquid / paste grade)
- pH
- 7.0–9.0 (5% aqueous)
Supply & Packaging
- Packaging
- 50 kg HDPE drum230 kg HDPE drum
- Grades Available
- Liquid / Paste — 38–40% active matter (published specification basis)
Compliance & Storage
- HS Code
- 3402 11 90
- Hazard Class
- Non-hazardous for transport — not classified under UN/ADR
- Storage
- Store away from strong acids and oxidisers. Mildly alkaline — avoid eye and skin contact.
These specs are indicative. Request a Certificate of Analysis (COA) for batch-specific values.
Source Manufacturers
Sourced directly from verified manufacturers for consistent quality and traceability.
Supplied across South IndiaCoimbatoreMaduraiHosurBangaloreHyderabadVisakhapatnamKochi
Frequently Asked Questions
What is AOS in chemistry — what does AOS stand for?
AOS is Alpha Olefin Sulphonate, an anionic surfactant carrying CAS number 68439-57-6. It is also written as sodium alpha olefin sulfonate or sodium C14-16 olefin sulfonate, and is widely used in detergents and cleaning formulations.
What is the CAS number for Alpha Olefin Sulphonate (AOS)?
The CAS number is 68439-57-6. That registry number covers the sodium C14-16 olefin sulfonate form of alpha olefin sulphonate, which is the AOS we supply.
What is AOS used for?
AOS is used as an anionic surfactant in detergent formulations, household cleaning products, and industrial and institutional cleaning concentrates. Formulators use it as a surfactant base when blending detergents and cleaners.
AOS paste vs liquid vs powder — which grade is specified?
The specification we publish covers the liquid / paste grade only: pale yellow clear liquid or paste, 38–40% mass active matter, pH 7.0–9.0 at 5% aqueous, unsulphated matter (NDOM) 1.5% max, sodium sulphate 1.0% max, sodium chloride 1.0% max, free oil 1.0% max, and colour 30 max (5% solution, Klett). The powder grade is not covered by this specification — call or WhatsApp +91 86087 80096 for powder-grade enquiries.
What is the HSN code for AOS surfactant?
AOS (Alpha Olefin Sulphonate) is supplied under HSN code 3402 11 90.
How is AOS supplied in Chennai, and in what drum sizes?
We supply the AOS liquid / paste grade in 50 kg and 230 kg HDPE drums from our Redhills warehouse in Chennai, with dispatch across South India. Order sizes depend on packaging and current stock — call or WhatsApp +91 86087 80096 for a quote.