1,1-Dichloro-1-fluoroethane

1,1-Dichloro-1-fluoroethane is a haloalkane with the formula C
2
H
3
Cl
2
F
. It is one of the three isomers of dichlorofluoroethane. It belongs to the hydrochlorofluorocarbon family (HCFC).

1,1-Dichloro-1-fluoroethane
Structures of 1,1-dichloro-1-fluoroethane
C=black, H=white, F=yellow, Cl=green
Names
IUPAC name
1,1-Dichloro-1-fluoroethane
Other names
Dichlorofluoroethane; R-141b; HCFC-141b
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.100.575
EC Number
  • 404-080-1
RTECS number
  • KI0997000
UNII
UN number 9274
Properties
C2H3Cl2F
Molar mass 116.94 g·mol−1
Appearance Colorless liquid, ethereal odor
Density 1.25 g/cm3 at 20 °C[1]
Melting point −103.5 °C (−154.3 °F; 169.7 K)[1]
Boiling point 32 °C (90 °F; 305 K)[1]
4 g/L (20 °C)[1]
Hazards
GHS pictograms
GHS Signal word Warning
GHS hazard statements
H412, H420
P273, P501, P502
532 °C (990 °F; 805 K)[1]
Explosive limits 5.6–17.7% vol.[1]
Lethal dose or concentration (LD, LC):
5 g/kg (rat, oral)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Use

1,1-Dichloro-1-fluoroethane is mainly used as a refrigerant under the names R-141b or HCFC-141b.

Physico-chemical properties

It is a non-flammable, colourless liquid in atmospheric conditions. The compound is very volatile and its smell has been described as "usually ethereal".

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gollark: The trouble with this is that scaling it up like this requires ridiculous amounts of computing resources, and now it's so big that individuals probably can't even tractably run it.
gollark: It can add somewhat larger numbers!
gollark: https://slatestarcodex.com/2020/06/10/the-obligatory-gpt-3-post/
gollark: Apparently there's a GPT-3 now, and it's basically just a bigger GPT-2 which is somewhat more effective.

References

  1. Record of 1,1-Dichloro-1-fluoroethane in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 8 February 2009.


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