Dibromotetrafluoroethane

Dibromotetrafluoroethane
	Ball-and-stick model of the dibromotetrafluoroethane molecule
Names
	Preferred IUPAC name 1,2-Dibromo-1,1,2,2-tetrafluoroethane
	Other names R-114B2, Halon 2402
Identifiers
CAS Number	124-73-2 ;
3D model (JSmol)	Interactive image;
ChemSpider	29041;
ECHA InfoCard	100.004.284
EC Number	204-711-9;
PubChem CID	31301;
UNII	1NJ2ZF1UN5 ;
CompTox Dashboard (EPA)	DTXSID0041226 ;
	InChI InChI=1S/C2Br2F4/c3-1(5,6)2(4,7)8 Key: KVBKAPANDHPRDG-UHFFFAOYSA-N; InChI=1/C2Br2F4/c3-1(5,6)2(4,7)8 Key: KVBKAPANDHPRDG-UHFFFAOYAK;
	SMILES BrC(F)(F)C(Br)(F)F;
Properties
Chemical formula	C2Br2F4
Appearance	Colorless liquid
Density	2180 kg/m3 at 20°C
Boiling point	47.3 °C (117.1 °F; 320.4 K)
Solubility in water	not soluble in water
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H420
Precautionary statements	P502
Safety data sheet (SDS)	External MSDS
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

1,2-Dibromotetrafluoroethane (C₂Br₂F₄) is a haloalkane. It is also known under codenames R-114B2 and Halon 2402. It is a colorless liquid with a boiling point of 47.2 °C. R-114B2 is occasionally used in fire suppression systems. It is highly volatile, passes through soil to air, and allows detection in the parts-per-quadrillion range.^[2]

Since July 1, 1994, the Montreal Protocol required all nations or parties that are a party to it to eliminate the production, consumption, and trade of ozone-depleting substance (ODS). Dibromotetrafluoroethane's high ozone-depleting potential (ODP) caused it to be identified as an ODS. Dibromotetrafluoroethane has been prohibited in Canada since July 1, 1994, "except for essential uses or for use as analytical standards".^[3]

In November 8, 2008, an accident aboard Russian submarine K-152 Nerpa involving the unintentional activation of a fire suppressant system loaded with R-114B2, resulted in the death of 20 people.^[4]

Notes

^ "Chemical datasheet for dibromotetrafluoroethane". Cameo Chemicals. National Oceanic and Atmospheric Administration. Retrieved November 18, 2008.
^ Patent #4725551 and Patent #6817227
^ "ARCHIVED - Environment and Climate Change Canada - Pollution and Waste - Dibromotetrafluoroethane". www.ec.gc.ca. Environment and Climate Change Canada.
^ Eschel, David (November 11, 2008). "Fire on Board the Russian Navy Akula II Nuclear Submarine kills Twenty Russian Sailors". Defense Update. Archived from the original on January 23, 2009. Retrieved November 15, 2008. Retrieved November 18, 2008.

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[1] "Chemical datasheet for dibromotetrafluoroethane". Cameo Chemicals. National Oceanic and Atmospheric Administration. Retrieved November 18, 2008.

[2] Patent #4725551 and Patent #6817227

[3] "ARCHIVED - Environment and Climate Change Canada - Pollution and Waste - Dibromotetrafluoroethane". www.ec.gc.ca. Environment and Climate Change Canada.

[4] Eschel, David (November 11, 2008). "Fire on Board the Russian Navy Akula II Nuclear Submarine kills Twenty Russian Sailors". Defense Update. Archived from the original on January 23, 2009. Retrieved November 15, 2008. Retrieved November 18, 2008.

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