| 翻訳と辞書 |
| Refrigerant 152a ： ウィキペディア英語版 |
1,1-Difluoroethane
|Section2=
|Section7=
}}
1,1-Difluoroethane, or DFE, is an organofluorine compound with the chemical formula C2H4F2. This colorless gas is used as a refrigerant, where it is often listed as R-152a (refrigerant-152a) or HFC-152a (hydrofluorocarbon-152a). As an alternative to chlorofluorocarbons, it has an ozone depletion potential of zero, a lower global warming potential (120) and a shorter atmospheric lifetime (1.4 years). It has recently been approved for use in automobile applications as an alternative to R-134a.
==Production==
1,1-Difluoroethane is produced by the mercury-catalyzed addition of hydrogen fluoride to acetylene:
:HCCH + 2 HF → CH3CHF2
The intermediate in this process is vinyl fluoride, the monomeric precursor to polyvinyl fluoride.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「1,1-Difluoroethane」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|