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What are HFEs and HFCs?

What are HFEs and HFCs?

Hydrofluoroethers (HFEs) and hydrofluorocarbons (HFCs) are two families of halogenated solvents that have found increasing application as alternatives to the traditional cleaning solvents such as trichloroethylene. Both are non-flammable, have low toxicity, and can be used as cleaning solvents in their own right, or in blends with other chemicals that improve, or modify, their solvency. Although significantly more expensive than the traditional solvents, their properties are such that, when used in correctly designed equipment, losses are generally low, making running costs comparable to traditional solvent processes.