1,1-二氟乙烷
1,1-二氟乙烷,又称DFE,是一种有机氟化合物,化学式 C2H4F2。它是一种无色气体,被用来冷冻。商品名为R-152a 或HFC-152a 。相较其它氟氯烃,它没有臭氧破坏潜势 ,较小的全球暖化潜势 (124)和较短的停留时间(1.4 年)。[2][3]
1,1-二氟乙烷[1] | |||
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别名 | Difluoroethane Freon 152a Ethylidene difluoride Ethylidene fluoride HFC-152a R-152a DFE | ||
识别 | |||
CAS号 | 75-37-6 | ||
PubChem | 6368 | ||
ChemSpider | 6128 | ||
SMILES |
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InChI |
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InChIKey | NPNPZTNLOVBDOC-UHFFFAOYAM | ||
RTECS | KI1410000 | ||
性质 | |||
化学式 | C2H4F2 | ||
摩尔质量 | 66.05 g/mol g·mol⁻¹ | ||
密度 | 900 g/L @ 25 °C | ||
熔点 | -117 °C(156 K) | ||
沸点 | -25 °C(248 K) | ||
溶解性(水) | 0.54% @ 0 °C | ||
蒸氣壓 | 4020 mmHg/536 kPa @ 21.1 °C
5.1 bar/510 kPa @ 20 °C | ||
黏度 | 0.00887 cP (8.87 µPa·s) @ 25 °C | ||
若非注明,所有数据均出自一般条件(25 ℃,100 kPa)下。 |
参考资料
- 1,1-Difluoroethane 页面存档备份,存于 at Sigma-Aldrich
- (PDF). Cambridge University Press: 212. 2007 [11 May 2017]. (原始内容存档 (PDF)于2007-12-15). dead link 18 February 2019
- . U.S. Environmental Protection Agency. 2010 [20 September 2010]. (原始内容存档于2010-10-16).
- Siegemund, Günter; Schwertfeger, Werner; Feiring, Andrew; Smart, Bruce; Behr, Fred; Vogel, Herward; McKusick, Blaine. . Bohnet, Matthias; Bellussi, Giuseppe; Bus, James; 等 (编). . John Wiley & Sons. 2010. doi:10.1002/14356007.a11_349.
参见
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