“…Most of these alternatives are hydrofluorocarbons (HFCs) and fluorinated ethers, for example, E143a (CF 3 OCH 3 ), E134 (CHF 2 OCHF 2 ), and E125 (CF 3 OCHF 2 ) for use as refrigerants and foam blowing applications and C 4 F 9 OCH 3 and C 4 F 9 OC 2 H 5 as replacements for the solvent CFC-113 (CCl 2 FCClF 2 ).…”