Submitted by György Chityil ... on Fri, 01/19/2018 - 23:54 Hierarchy: NounDescription: {{organic chemistry}} A refrigerant and fire suppression agent with the chemical formula CF<sub>3</sub>CHF<sub>2</sub>.Ngram: pentafluoroethaneNgram Text: pentafluoroethaneSource: WiktionaryIssue: 0Wiktionary tag: organic chemistryNgram Count: 1