Alpha Olefin sulfonates (also: alpha-olefin sulfonates or AOS) are a group of anionic surfactants, which are used as detergents. The most frequently used example of this group of substances is sodium alpha olefin sulfonate.

Alpha Olefin Sulfonate 40% (AOS 40%) is a formaldehyde free solution of sodium C14-C16 alpha olefin sulfonate preserved with MCI/MI. It can be used in variety of applications due to its excellent viscosity, hard water stability, detergency, foam characteristics, and pH stability over a broad pH range.