Alpha-Olefin Sulfonate / AOS (92%)
- CAS Number: 68439-57-6
- Chemical Formula: C10H21NaO3S, C12H25NaO3S, C14H29NaO3S
- MOQ: 1000KG
- Shelf Life: 2 years
- Synonyms: C10-16 Alpha-Olefin Sulfonate, Alkyl Olefin Sulfonate, C12-14 Alpha-Olefin Sulfonate, Sodium Alpha-Olefin Sulfonate
Product Description
What Is Alpha-Olefin Sulfonate?
AOS is a surfactant that is frequently used in detergents, shampoos, and cleaning products because of its superior emulsifying, foaming, and cleansing qualities. It is derived from alpha-olefins, which are unsaturated hydrocarbons with a double bond at the alpha position of the carbon chain. These olefins typically react with sulfur trioxide (SO3) to produce the sulfonic acid group, followed by neutralization with sodium hydroxide to form sodium alpha-olefin sulfonate.
Preparation Method:
- Synthesis: Alpha-olefins (such as C10, C12, or C14) undergo sulfonation with sulfur trioxide (SO3), producing a sulfonic acid intermediate.
- Neutralization: Sodium hydroxide (NaOH) is used to neutralize the sulfonic acid, resulting in sodium alpha-olefin sulfonate (AOS).
- Purification: The final product is filtered, purified, and concentrated to the desired grade for specific applications.
Related Parameters:
| Items | Standard |
| Active Matter (%) | 92% min. |
| Color (APHA) | Max. 50 |
| pH (1% aqueous solution) | 7.0 – 9.0 |
| Free Alkali (%) | Max. 1.0% |
| Water Content (%) | Max. 5.0% |
| Sulfur Content (%) | Max. 0.5% |
| Free Oil (%) | Max. 2.0% |
| Total Sulfonate (%) | Min. 92% |
Recommended Dosage of Alpha-olefin Sulfonate:
| Applications | Dosage |
| Household Detergents (e.g., laundry detergents) | 5% – 10% |
| Personal Care Products (e.g., shampoos, body wash) | 5% – 8% |
| Industrial Cleaners (e.g., degreasers) | 2% – 5% |
| Car Wash Formulations | 2% – 5% |
| Agricultural Cleaning Products | 1% – 3% |
| Emulsions, Dispersions, and Surfactants | 5% – 15% |
Alpha-olefin Sulfonate Has Wide Range of Uses:
- Household Cleaning Products: AOS is an effective cleaning agent in household products like laundry detergents and dishwashing liquids. Its excellent foaming and grease-removal properties make it ideal for cleaning agents, efficiently removing oils and stains while being environmentally friendly due to its biodegradability.
- Personal Care Products: Shampoos, body washes, and face cleansers are among the personal care items that include AOS. It is appropriate for sensitive skin because it has a gentle yet efficient cleaning action that helps to eliminate oils and pollutants from the skin and hair without irritating them.
- Industrial Cleaning: AOS is used in industrial cleaning agents, degreasers, and oil removers. Its superior ability to cut through oils and grease makes it invaluable for cleaning machinery, automotive parts, and other heavily soiled surfaces.
- Agricultural Cleaning Products: AOS is also employed in agricultural cleaning products, such as pesticide removers, helping to eliminate residues from agricultural equipment, ensuring the quality of farm products.
- Emulsifiers and Dispersants: AOS is utilized in emulsifiers and dispersants, particularly in stabilizing oil-water emulsions, improving product consistency, and preventing phase separation.
User Asked Question:
Q: Can AOS be used in formulations for heavy-duty cleaning?
A: Yes, AOS is effective in industrial cleaning and degreasing products. It is used to clean machinery, automotive parts, and other equipment that require strong oil and grease removal.
