三氟甲基五氟化硫

三氟甲基五氟化硫
識別
CAS號	373-80-8
PubChem	136213
ChemSpider	119988
SMILES	FC(F)(F)S(F)(F)(F)(F)F;
InChI	1S/CF8S/c2-1(3,4)10(5,6,7,8)9;
InChIKey	QIYZKVMAFMDRTP-UHFFFAOYSA-N
性質
化學式	CF8S
摩爾質量	196.06 g·mol−1
熔點	-87 °C（186 K）
沸點	-20.4 °C（253 K）
	若非註明，所有數據均出自標準狀態（25 ℃，100 kPa）下。

三氟甲基五氟化硫，化學式 CF₃SF₅，是一種稀有的工業溫室氣體。^[1] 它在 2000年首次在大氣中被檢測到。^[2] 三氟甲基六氟化硫是「超級溫室氣體」之一。以每個分子計算，它被認為是地球大氣中最強大的溫室氣體，全球暖化潛勢是二氧化碳的18000倍。^[3] 這種化合物在大氣中預測有800年的壽命。^[4] 然而，目前三氟甲基五氟化硫的濃度仍然不太可能對全球變暖作出可衡量貢獻的水平。^[3] 三氟甲基五氟化硫氣體在大氣中的存在歸因於人類（英語：Human_impact_on_the_environment），可能是碳氟化合物的製造產生的一種副產物，源於SF₆與電子設備和微晶片中使用的氟聚合物的反應，或在高壓電設備中的SF₆與CF₃反應，形成CF₃SF₅分子。^[3]它的化學性質類似六氟化硫 (SF₆)。^[5]

參考資料[編輯]

^ Tuckett, Richard P. Chapter 3: Trifluoromethyl Sulphur Pentafluoride, SF₅CF₃: Atmospheric Chemistry and Its Environmental Importance via the Greenhouse Effect. Tressaud, Alain (編). Fluorine and the Environment Atmospheric Chemistry, Emissions, & Lithosphere (Advances in Fluorine Science series) 1. Elsevier. 2006: 89–129. ISBN 0-444-52811-3. doi:10.1016/S1872-0358(06)01003-7.
^ Sturges, W.T.; T. J. Wallington; M. D. Hurley; K. P. Shine; K. Sihra; A. Engel; D. E. Oram; S. A. Penkett; R. Mulvaney; C.A.M. Brenninkmeijer. A Potent Greenhouse Gas Identified in the Atmosphere: SF₅CF₃. Science. 28 July 2000, 289 (5479): 611–613. doi:10.1126/science.289.5479.611.
^ ^3.0 ^3.1 ^3.2 Suen, Martin. Trifluoromethyl Sulfur Pentafluoride (CF₃SF₅): A Review of the Recently Discovered Super-Greenhouse Gas in the Atmosphere. The Open Atmospheric Science Journal. 2008, 2: 56–60. doi:10.2174/1874282300802010056 .
^ Tsai, Wen-Tien. The prediction of environmental fate for trifluoromethyl sulfur pentafluoride (CF₃SF₅), a potent greenhouse gas. Journal of Hazardous Materials. 2007, 149 (3): 747–751. PMID 17884286. doi:10.1016/j.jhazmat.2007.08.035.
^ Silvey, Gene A.; Cady, George H. Trifluoromethylsulfur Pentafluoride. J. Am. Chem. Soc. 1950, 72 (8): 3624–3626. doi:10.1021/ja01164a084.

[1] Tuckett, Richard P. Chapter 3: Trifluoromethyl Sulphur Pentafluoride, SF₅CF₃: Atmospheric Chemistry and Its Environmental Importance via the Greenhouse Effect. Tressaud, Alain (編). Fluorine and the Environment Atmospheric Chemistry, Emissions, & Lithosphere (Advances in Fluorine Science series) 1. Elsevier. 2006: 89–129. ISBN 0-444-52811-3. doi:10.1016/S1872-0358(06)01003-7.

[2] Sturges, W.T.; T. J. Wallington; M. D. Hurley; K. P. Shine; K. Sihra; A. Engel; D. E. Oram; S. A. Penkett; R. Mulvaney; C.A.M. Brenninkmeijer. A Potent Greenhouse Gas Identified in the Atmosphere: SF₅CF₃. Science. 28 July 2000, 289 (5479): 611–613. doi:10.1126/science.289.5479.611.

[MS2008-3] 3.0 ^3.1 ^3.2 Suen, Martin. Trifluoromethyl Sulfur Pentafluoride (CF₃SF₅): A Review of the Recently Discovered Super-Greenhouse Gas in the Atmosphere. The Open Atmospheric Science Journal. 2008, 2: 56–60. doi:10.2174/1874282300802010056 .

[4] Tsai, Wen-Tien. The prediction of environmental fate for trifluoromethyl sulfur pentafluoride (CF₃SF₅), a potent greenhouse gas. Journal of Hazardous Materials. 2007, 149 (3): 747–751. PMID 17884286. doi:10.1016/j.jhazmat.2007.08.035.

[5] Silvey, Gene A.; Cady, George H. Trifluoromethylsulfur Pentafluoride. J. Am. Chem. Soc. 1950, 72 (8): 3624–3626. doi:10.1021/ja01164a084.

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