ABSTRACT
In terms of cleaning, a solvent is a substance, single or multicomponent, capable of dissolving other substances to form a homogeneous system (solution). Once the contaminant is dissolved in the solvent, both can be removed from the substrate. ¤e criteria for what determines a good solvent depend on the use and ultimate level of cleanliness sought during the process. A solvent may be de©ned in rough terms as any liquid that serves as a carrier for another substance or as a means of extracting or separating other substances. New criteria for solvent selection include the necessity of leading to minimal environmental impact during and a¨er their use.
