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二氟一氯甲烷

二氟一氯甲烷
IUPAC名
Chlorodifluoromethane
别名 二氟氯甲烷
一氯二氟甲烷
氯二氟甲烷
氟利昂22
氟里昂22
R22
识别
CAS号 75-45-6  checkY
PubChem 6372
ChemSpider 6132
SMILES
 
  • ClC(F)F
InChI
 
  • 1/CHClF2/c2-1(3)4/h1H
InChIKey VOPWNXZWBYDODV-UHFFFAOYAQ
EINECS 200-871-9
RTECS PA6390000
KEGG C19361
性质
化学式 CHClF2
摩尔质量 86.47 g·mol⁻¹
外观 有类似气味的无色气体
密度 3.94 kg/m3(0 °C)[1]
3.66 kg/m3(15 °C)
熔点 -175.42°C (97.73 K)
沸点 -40.7 C (232.45 K)
溶解性 0.7799 vol/vol (25°C),3.628 g/l
log P 1.08
蒸气压 908 kPa (20 °C)
kH 0.033 mol·kg-1·bar-1
结构
分子构型 四面体
危险性
警示术语 R:R59
安全术语 S:S23, S24, S25, S59
主要危害 对环境有害 (N)
中枢神经镇静剂
第三类致癌物质
NFPA 704
0
1
1
 
自燃温度 632 °C
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

二氟一氯甲烷,别名氟利昂-22R-22,分子式CHClF2

性质

无色近乎无臭气体。不可燃。微溶于水。

制备

三氯甲烷氟化氢五氯化锑催化下反应而得。

用途

用作致冷剂聚四氟乙烯树脂原料和灭火剂等。但由于会破坏臭氧层,近年来已逐渐由其他化学物质所取代。

参考资料

  1. ^ Record of Chlordifluormethan in the GESTIS Substance Database from the IFA英语Institute for Occupational Safety and Health
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二氟一氯甲烷
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