Alcohol Ethoxylates belong to the class of compounds which are synthesized via the reaction of a fatty alcohol and ethylene oxide, resulting in a molecule that consists of two parts one a carbon-rich, fatty alcohol and the second part a hydrophilic, polyoxyethylene chain.
This dual structural aspect of ethoxylated alcohol containing a hydrophobic portion (water-hating) with a hydrophilic component (water-loving), enables them to mix and solubilize oil and water by lowering the interfacial energy associated between them. These properties of ethoxylated alcohol gives them the general connotation of Surfactants or surface active agents.