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dichlorofluoromethane
Sign in to saveAlso known as Freon 21, Genetron 21, Halon 112, Refrigerant 21, HCFC-21, fluorodichloromethane, dichloromonofluoromethane, monofluorodichloromethane
Dichlorofluoromethane or Freon 21 or R 21 is a halomethane or hydrochlorofluorocarbon with the formula CHCl2F. It is a colorless and odorless gas. It is produced by fluorination of chloroform using a catalyst such as antimony trifluoride: CHCl3 + HF → CHCl2F + HCl
Chemical data
- Formula
- CHCl2F
- Molecular weight
- 102.92 g/mol
- IUPAC name
- dichloro(fluoro)methane
- SMILES
- C(F)(Cl)Cl
- InChIKey
- UMNKXPULIDJLSU-UHFFFAOYSA-N
- XLogP
- 2
- Polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 1
- Formal charge
- 0
via PubChem
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Encyclopedic overview
5 sectionsContents
- Uses
- Additional physical data
- Safety
- References
- External links
Dichlorofluoromethane or Freon 21 or R 21 is a halomethane or hydrochlorofluorocarbon with the formula CHCl2F. It is a colorless and odorless gas. It is produced by fluorination of chloroform using a catalyst such as antimony trifluoride: CHCl3 + HF → CHCl2F + HCl
==Uses== Dichlorofluoromethane was used as a propellant and refrigerant. Due to its role in ozone depletion, dichlorofluoromethane has been largely phased out. It has ozone depletion potential 0.04. Production and consumption has been since 2004 reduced to 15% of level from 1989 and it is to be phased out in 2015 according to Montreal Protocol.
Excerpted from Wikipedia’s “dichlorofluoromethane” article, available under the CC BY-SA 4.0 licence.