Structure via PubChem · Public domain (PubChem)
dichlorodifluoromethane
Sign in to saveAlso known as Difluorodichloromethane, Fluorocarbon 12, Freon 12, Genetron 12, Halon 122, Propellant 12, Refrigerant 12, R-12
Dichlorodifluoromethane (R-12) is a colorless gas popularly known by the genericized brand name Freon (as Freon-12). It is a chlorofluorocarbon halomethane (CFC) used as a refrigerant and aerosol spray propellant. In compliance with the Montreal Protocol, its manufacture was banned in developed countries (non-article 5 countries) in 1996, and in developing countries (Article 5 countries) in 2010 out of concerns about its damaging effect on the ozone layer. Its only allowed usage is as a fire retardant in submarines and aircraft. It is soluble in many organic solvents. R-12 cylinders are colore
Chemical data
- Formula
- CCl2F2
- Molecular weight
- 120.91 g/mol
- IUPAC name
- dichloro(difluoro)methane
- SMILES
- C(F)(F)(Cl)Cl
- InChIKey
- PXBRQCKWGAHEHS-UHFFFAOYSA-N
- XLogP
- 2.3
- Polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 2
- Formal charge
- 0
via PubChem
Drug data · ChEMBL
- Molecule type
- Small molecule
via ChEMBL · EBI
Wikidata facts
- Subclass of
- chlorofluorocarbon
- Has part
- carbon
- Mass
- 119.935
- Has use
- refrigerant
Show 17 more facts
- NIOSH Pocket Guide ID
- 0192
- chemical formula
- CCl₂F₂
- immediately dangerous to life or health
- 74250
- melting point
- -158
- boiling point
- -29.8
- vapor pressure
- 5.7
- solubility
- 0.03
- ionization energy
- 11.75
- electric dipole moment
- 0.51
- time-weighted average exposure limit
- 4950
- partition coefficient water/octanol
- 2.16
- canonical SMILES
- C(F)(F)(Cl)Cl
- Commons category
- Dichlorodifluoromethane
- global warming potential
- 11547
- MCN code
- 2903.77.12
- discoverer or inventor
- Thomas Midgley
- ozone depletion potential
- 0.82
Sources (7)
via Wikidata · CC0
~6 min read
Encyclopedic overview
10 sectionsContents
- Preparation
- History
- Use as an aerosol
- Environmental effects
- Retrofitting
- Dangers
- Properties
- Gallery
- References
- External links
Dichlorodifluoromethane (R-12) is a colorless gas popularly known by the genericized brand name Freon (as Freon-12). It is a chlorofluorocarbon halomethane (CFC) used as a refrigerant and aerosol spray propellant. In compliance with the Montreal Protocol, its manufacture was banned in developed countries (non-article 5 countries) in 1996, and in developing countries (Article 5 countries) in 2010 out of concerns about its damaging effect on the ozone layer. Its only allowed usage is as a fire retardant in submarines and aircraft. It is soluble in many organic solvents. R-12 cylinders are colored white.
R-12 has the highest potential for ozone destruction of all refrigeration gases.
Excerpted from Wikipedia’s “dichlorodifluoromethane” article, available under the CC BY-SA 4.0 licence.