Physical Sciences Inc. (PSI) proposes to synthesize, characterize, and test new ionic liquids and formulations as lubricants for aerospace applications. The compounds will have low vapor pressures/outgassing and appropriate thermal stability. Upon addition of the innovative ionic liquids to the base lubricants, a 20% decrease in viscosity, friction coefficient, and wear will result. Minimal corrosive effects of the formulations at will be observed. The formulations will be shown more effective as liquid lubricants for use at low temperatures (-70oC) with long-term operational stability in aerospace systems. Several new ionic liquids will be scaled and a novel formulation will be evaluated in a NASA test bed. The technology will be at a TRL range from 3-4 upon completion of Phase II.