Anionic nonionic surfactant has a longest history, highest output and most various types. It is classified according to the structures of their hydrophilic groups: oil soluble surfactants and sulfates, which are the main types of anionic surfactants. The various functions of surfactants are mainly manifested in changing the properties of the liquid surface, the liquid-liquid interface and the liquid-solid interface. Sodium Laureth(2) Sulfate (AES/SLES) Chemical Formula: C12H26Na2O5S CAS No.: 68585-34-2 Dangerous Grade: Non-dangerous Sodium Alpha Olefin Sulfonate (AOS-35) Chemical Formula: R-CH=CH-(CH2)n-SO3Na CAS No.: 68439-57-6 Dangerous Grade: Non-dangerous C12-14 Linear Alkyl Benzene Sulfonate（LAS） Chemical Formula:C18H30O3S CAS No.:27176-87-0 Dangerous Grade: 8 Common anionic surfactant: Sulfate, sulfonate, and phosphate esters Anionic surfactants contain anionic functional groups at their head, such as sulfate,sulfonate, phosphate, and carboxylates. Prominent alkyl sulfates i...