Abstract
The current fuel system icing inhibitor (FSII) additives used for commercial and military aircraft are ethylene glycol mono methyl ether (EGME) and diethylene glycol mono methyl ether (DiEGME). Propylene glycol is used for wing deicing. Fuel deicing additives are required in military fuels an optional in commercial fuels with wing deicing being weather dependent. The acetals and ketals of reduced sugars are being synthesized and modeled computationally because they are less toxic and more environmentally benign than EGME and DiEGME. Each compound is being studied with an emphasis on deicing effectiveness, human toxicity, and environmental hazard. This paper reports on three compounds derived from the sugar mannose.