The dicarboxylic anhydrides are used in preparation of surfactants. Among these succinic anhydride is considered as a good precursor, or starting material for production of surface active agents. Three types of nonionic surfactants were prepared with this compound. 1) Succinic anhydride was esterified with ethoxylated fatty alcohols (C8–C18with 3– 10 mole of ethylene oxide) producing diester type nonionic surfactant. 2) The hydrophilic part of nonionic surfactants was produced by ethoxylation of fatty alcohol (C6–C18) succinate half ester in the presence of Na2CO3 catalyst. 3) or by amidation (with ethanol amine) and ethoxylation of the half ester in the presence of K10 clay catalyst. The structures of the prepared new nonionic surfactants were confirmed by spectroscopic tools, their surface properties and biodegradability were determined. All types of nonionic surfactants prepared have good surface properties. The nonionics produced with K10 clay catalyst has superior surface properties compared to others having the same number of ethylene oxide and substrate