Alpha Olefin Sulphonate, or α-Olefin sulfonates, commonly called AOS for short, is a third-generation anionic surfactant. It’s biodegradable, mild, and resistant to hard water, yet with outstanding detergency and excellent compatibility with other types of surfactants.
It’s widely used to formulate high-foaming heavy-duty detergent as the secondary surfactant alone with Linear Alkyl Benzene Sulphonic Acid (LABSA) or to formulate mild light-duty detergents and personal care products, such as hand soap liquid, shampoo, baby bubble bath, and so on.
There are commonly two types of AOS commercially available, the liquid solution(with 33%-40% active matter content) and the dry powder(with 85%-95% active matter content). The choice of these two types is based on the formulation target, transporting and handling convenience, and cost.
| Chemical Name | Sodium alpha-olefin sulfonate (AOS) / Sodium C14-16 Olefin Sulfonate | ||
| Synonyms | AOS Detergent Chemical, Alkyl olefin sulfonate, C14-C16 sodium sulfonate | ||
| CAS Number | 68439-57-6 | ||
| Classification | Anionic surfactant(Top Quality Surfactant For Sale) | ||
| Molecular Formula | RCH=CH-(CH2)n-SO3Na/R2-CH(OH)-(CH2)n-SO3Na | ||
| Forms | AOS 35% Liquid | AOS 92% Powder | |
| Active Matter Content (%) | 35.0 | 92.0(Industrial Grade) | |
| Appearance (25℃) | Light yellow transparent liquid | White or slightly yellow powder | |
| Odor | Slight characteristic odor | ||
| Water Content (% Max) | N/A | 3.0 | |
| pH Value (1% aq. solution) | N/A | 9.0-12.0 | |
| Unsulfated Matter (% Max) | ≤1.5 | ≤3 | |
| Sodium Sulfate (Na2SO4 % Max) | ≤1.5 | ≤2.5-5.5 | |
| Free Alkali (as NaOH % Max) | ≤0.3 | N/A | |
| Color (Hazen, 5% a.m. sol) | ≤60 | N/A | |
| Whiteness (WG Min) | N/A | ≥80 | |
| Standard Packaging | 200KG Plastic Drum / IBC Tote / Bulk | 20KG or 25KG Composite Kraft Paper Bags | |
| Commercial Note | Contact direct manufacturer for custom wholesale factory price per kg / ton tier pricing. | ||
| Minimum Order (MOQ) | 1 Metric Tons / 1 FCL Container (Supports FCL mixed loading with other chemicals) | ||
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Always refer to the Safety Data Sheet (SDS) before use. |
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