Hydrofluorocarbons (HFCs) are synthetic organic compounds that contain fluorine and hydrogen atoms, and are the most common type of organofluorine compounds. Most are gases at room temperature and pressure.

氢氟碳化物，是有助于避免破坏臭氧层的物质，常用来替代耗臭氧物质，如广泛用于冰箱、空调和绝缘泡沫生产的氯氟烃 (CFCs)。 氢氟碳化物 (HFCs)在导致气候变暖的各种因素中所起的作用会越来越大，需要引起人们的关注。 氢氟碳化物 hydrofluorocarbons（HFCs）：饱和烃的氢原子仅被氟原子取代，而且没有完全被氟原子取代后生成的化合物。 [3] 2013年6月9日，环境署执行主任施泰纳发表声明，中美两国元首在加州会晤时宣布两国将开展合作，减少并逐步停止使用氢氟碳 …

氢氟烃 (HFCs) 是一类由氟原子替代烷烃里的一部分氢原子而成。 它们是最常见的有机氟化合物。 在常温常压下，大多数的氢氟烃是气体。 它们可以用来作为 冷冻剂。 1,1,1,2-四氟乙烷 是目前最常用的 HFC 冷冻剂，也可替代老牌的 氯氟烃 如： R-12 和氢氟氯碳化物如： R-21。 [1] 虽然氢氟烃不会破坏臭氧层，不过它的 全球暖化潜势 却是二氧化碳的上千倍。 [2] C–F 化学键 较少的氢氟烃的行为与母体碳氢化合物相似，但它们的反应性可以显着改变。 例如， 尿嘧啶 和 5-氟尿嘧 …

Hydrofluorocarbon (HFC), any of several organic compounds composed of hydrogen, fluorine, and carbon. HFCs became widely used as refrigerants in the late 1980s, but their status as potent greenhouse gases led to their manufacture and use becoming increasingly regulated in the …

EPA publishes a final rulemaking to manage certain HFCs and their substitutes (10/11/2024). EPA announces the selection of five applicants for $14.25 million in grants for reclamation and innovative destruction of HFCs. Hydrofluorocarbons (HFCs) are …

2024年12月27日 · Hydrofluorocarbons (HFCs) are greenhouse gases (GHGs) commonly used by federal agencies in a wide variety of applications, including refrigeration, air-conditioning (AC), building insulation, fire extinguishing systems, and aerosols.

Hydrofluorocarbons (HFCs) are a group of synthetic gases primarily used for cooling and refrigeration. Many HFCs are very powerful, short-lived climate pollutants with an average atmospheric lifetime of 15 years.

氢氟烃（Hydrofluorocarbons,缩写HFCs），虽然其ODP为零，但大气停留时间较长，GWP较高，大量使用会引起全球气候变暖；HFC-134a分子中含有CF3基团，在大气中解离后易与 OH自由基 或臭氧反应形成对生态系统危害严重的 三氟乙酸 ；此外作为制冷剂HFC-134a与许多常用的 ...

HFCs or hydrofluorocarbons, are super greenhouse gases because with a global warming potential hundreds to thousands of times more potent than CO2. HFCs are also short-lived climate pollutants with atmospheric lifetimes between 15 and 29 years.

2024年12月18日 · Hydrofluorocarbon (HFC)-23 is a potent greenhouse gas with a 100-year global warming potential (GWP) of 14,800. While there are limited instances where HFC-23 is captured, purified, and used for commercial purposes, the majority of HFC-23 is unintentionally created as a byproduct during the production of certain fluorinated compounds, including ...