Alpha Olefin Sulfonate (AOS)

Alpha Olefin Sulfonate, commonly known by the acronym AOS, is a highly effective anionic surfactant produced through the continuous sulfonation of linear alpha-olefins with sulfur trioxide, followed by neutralization with an alkaline base such as sodium hydroxide. Chemically, it consists of a complex mixture containing primarily sodium alkene sulfonates and sodium hydroxyalkane sulfonates. This versatile compound is recognized globally for its exceptional foaming properties, superior detergency, and remarkable stability across a wide range of pH levels, making it particularly effective in both acidic and alkaline environments. Its molecular structure allows it to maintain high solubility even in cold water and demonstrates excellent resistance to water hardness, which prevents the formation of unwanted soap scum. Furthermore, AOS is valued for its rapid biodegradability and relatively low skin irritation profile compared to other common surfactants like Sodium Lauryl Sulfate. These characteristics ensure its widespread adoption in various industrial, commercial, and personal care.