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Dibromodifluoromethane

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Dibromodifluoromethane
Names
IUPAC name Dibromodifluoromethane
Other names Difluorodibromomethane, Carbon dibromide difluoride, Carbon bromide fluoride, Halon 1202, Fluorocarbon 12-B2, FC 12-B2, R 12B2, UN 1941
Identifiers
CAS Number
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard 100.000.805 Edit this at Wikidata
EC Number
  • 200-885-5
PubChem CID
RTECS number
  • PA7525000
CompTox Dashboard (EPA)
InChI
  • InChI=1S/CBr2F2/c2-1(3,4)5Key: AZSZCFSOHXEJQE-UHFFFAOYSA-N
  • InChI=1/CBr2F2/c2-1(3,4)5
SMILES
  • C(F)(F)(Br)Br
Properties
Chemical formula CBr2F2
Molar mass 209.82 g/mol
Appearance Colourless gas/liquid
Density 8.7 kg/m³ (for gas)

2.27 g/cm³ (for liquid)

Melting point -101.1°C
Boiling point 22.8 °C
Solubility in water Insoluble
log P 1.99
Vapor pressure 83 kPa at 20 °C
Hazards
Occupational safety and health (OHS/OSH):
Main hazards Dangerous for the environment (N)
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2 0 0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). checkverify (what is  ?) Infobox references
Chemical compound

Dibromodifluoromethane is a mixed halomethane. It is a colorless non-flammable liquid.

Along with Halons Halon 1211, 2402, and 1301, it is the most effective fire extinguishers, however, also the most toxic one.

It is a class I ozone depleting substance (ODS).

Table of physical properties

Property Value
Density (ρ) at 15 °C (liquid) 2.3063 g.cm
Critical temperature (Tc) 198.3 °C (471.3 K)
Critical pressure (pc) 4.13 MPa (40.8 bar)
Refractive index (n) at 20 °C, D 1.398
Dipole moment 0.7 D
Ozone depletion potential (ODP) 0.4 (CCl3F = 1)

External links

Halomethanes
Unsubstituted
Monosubstituted
Disubstituted
Trisubstituted
Tetrasubstituted
* Chiral compound.
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