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Revision as of 11:45, 17 February 2011 by CheMoBot (talk | contribs) (Updating {{chembox}} (no changed fields - added verified revid - updated 'ImageFile_Ref', 'UNII_Ref', 'ChEMBL_Ref', 'KEGG_Ref') per Chem/Drugbox validation (report [[Wikipedia_talk:WikiProject_Ch)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)Names | |
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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 |
EC Number |
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PubChem CID | |
RTECS number |
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CompTox Dashboard (EPA) | |
InChI
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SMILES
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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) | 2 0 0 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Y verify (what is ?) Infobox references |
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 |
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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
- International Chemical Safety Card 1419
- NIOSH Pocket Guide to Chemical Hazards. "#0214". National Institute for Occupational Safety and Health (NIOSH).
- Photolysis of dibromodifluoromethane at 265 nm
- Raman and infrared spectra of solid dibromodifluoromethane
Halomethanes | |
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Unsubstituted | |
Monosubstituted | |
Disubstituted | |
Trisubstituted | |
Tetrasubstituted | |
* Chiral compound. |