六氟化硫
六氟化硫(化学式:SF6)是一种无色、无味、无毒的气体,不可燃,微溶于水。分子为八面体构型,属于超价分子,无极性。六氟化硫是常用的致冷剂及輸配電設備的絕緣與防電弧氣體,但它也是很持久的温室气体,其全球变暖潜能为CO₂的23500倍[2]
| 六氟化硫 | |||
|---|---|---|---|
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| IUPAC名 sulfur(VI) fluoride | |||
| 别名 | 氟化硫(VI)、氟化硫 | ||
| 识别 | |||
| CAS号 | 2551-62-4 | ||
| PubChem | 17358 | ||
| SMILES |
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| RTECS | WS4900000 | ||
| 性质 | |||
| 化学式 | SF6 | ||
| 146.06 g·mol⁻¹ | |||
| 外观 | 无色无味气体 | ||
| 密度 | 6.164 g/L (气,1bar) 1.382 kg/L (液,21°C)[1] 2.510 kg/L (固,−50.8°C) | ||
| 熔点 | −64 °C (209 K) 升华 | ||
| 沸点 | -50.8°C | ||
| 溶解性(水) | 微溶 | ||
| 结构 | |||
| 配位几何 | 八面体 | ||
| 偶极矩 | 0 D | ||
| 危险性 | |||
| MSDS | External MSDS | ||
| 主要危害 | 惰性气体、引起窒息 | ||
| NFPA 704 |
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| 闪点 | 不可燃 | ||
| 相关物质 | |||
| 相关化学品 | SF 4、CF 4 | ||
| 若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 | |||
参考资料
- http://www.airproducts.com/Products/Gases/gas-facts/physical-properties/physical-properties-sulfur-hexafluoride.aspx
- . Intergovernmental Panel on Climate Change. 2001 [2007-03-31]. (原始内容存档于2007-03-29).
延伸阅读
- Christophorou, Loucas G., Isidor Sauers (编). . Plenum Press. 1991. ISBN 0-306-43894-1.
- Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. ISBN 0-12-352651-5.
- Khalifa, from Maller and Naidu (1981)
- SF6 Reduction Partnership for Electric Power Systems
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