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Revision as of 01:49, 31 July 2011 edit75.151.251.81 (talk) It is a patented tracer also.← Previous edit Latest revision as of 12:37, 7 September 2024 edit undo46.18.177.138 (talk) →Notes: Category 
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{{chembox {{chembox
| Watchedfields = changed
| verifiedrevid = 387794815 | verifiedrevid = 442289561
⚫ | ImageFile = 1,2-Dibromotetrafluoroethane.svg
| ImageFileL1 = | ImageFileL1 = 1,2-Dibromotetrafluoroethane.svg
| ImageSizeL1 = | ImageSizeL1 = 115
| ImageAltL1 = Skeletal formula of dibromotetrafluoroethane
| ImageFileR1 =
⚫ | ImageFileR1 = 1,2-Dibromotetrafluoroethane 3D ball.png
| ImageSizeR1 = | ImageSizeR1 = 135
| IUPACName = Dibromotetrafluoroethane
| ImageAltR1 = Ball-and-stick model of the dibromotetrafluoroethane molecule
| PIN = 1,2-Dibromo-1,1,2,2-tetrafluoroethane
| OtherNames = R-114B2,<ref>{{cite web |url=http://cameochemicals.noaa.gov/chemical/16320 |title=Chemical datasheet for dibromotetrafluoroethane |work=Cameo Chemicals |publisher=]}} Retrieved November 18, 2008.</ref> Halon 2402 | OtherNames = R-114B2,<ref>{{cite web |url=http://cameochemicals.noaa.gov/chemical/16320 |title=Chemical datasheet for dibromotetrafluoroethane |work=Cameo Chemicals |publisher=]}} Retrieved November 18, 2008.</ref> Halon 2402
| Section1 = {{Chembox Identifiers |Section1={{Chembox Identifiers
⚫ | CASNo_Ref = {{cascite|correct|??}}
| CASNo = 124-73-2
| EINECS = | CASNo = 124-73-2
| UNII_Ref = {{fdacite|correct|FDA}}
| PubChem =
| SMILES = | UNII = 1NJ2ZF1UN5
| InChI = | PubChem = 31301
| RTECS = | ChemSpiderID = 29041
| EC_number = 204-711-9
⚫ | KEGG_Ref = {{keggcite|correct|kegg}}
| SMILES = BrC(F)(F)C(Br)(F)F
| InChI = 1/C2Br2F4/c3-1(5,6)2(4,7)8
| InChIKey = KVBKAPANDHPRDG-UHFFFAOYAK
| StdInChI = 1S/C2Br2F4/c3-1(5,6)2(4,7)8
| StdInChIKey = KVBKAPANDHPRDG-UHFFFAOYSA-N
| RTECS =
| KEGG_Ref = {{keggcite|correct|kegg}}
| KEGG = | KEGG =
}} }}
| Section2 = {{Chembox Properties |Section2={{Chembox Properties
| Formula = C<sub>2</sub>Br<sub>2</sub>F<sub>4</sub> | Formula = C<sub>2</sub>Br<sub>2</sub>F<sub>4</sub>
| MolarMass = | MolarMass =
| Appearance = Colorless liquid | Appearance = Colorless liquid
| Density = 2.18 kg/m<sup>3</sup> at 20°C | Density = 2180 kg/m<sup>3</sup> at 20°C
| MeltingPt = | MeltingPt =
| BoilingPtC = 47.3 | BoilingPtC = 47.3
| Solubility = | Solubility = not soluble in water
| LogP = | LogP =
| VaporPressure = | VaporPressure =
| HenryConstant = | HenryConstant =
}} }}
| Section3 = {{Chembox Structure |Section3={{Chembox Structure
| CrystalStruct = | CrystalStruct =
| Coordination = | Coordination =
| MolShape = | MolShape =
}} }}
| Section4 = {{Chembox Hazards |Section4={{Chembox Hazards
| ExternalMSDS = | ExternalSDS =
| MainHazards = | MainHazards =
| NFPA-H = | NFPA-H =
| NFPA-F = | NFPA-F =
| NFPA-R = | NFPA-R =
| NFPA-O = | NFPA-S =
| RPhrases = {{R36}} {{R38}} | GHSPictograms = {{GHS07}}
| GHSSignalWord = Warning
| SPhrases =
| HPhrases = {{H-phrases|420}}
⚫ | FlashPt =
| PPhrases = {{P-phrases|502}}
| Autoignition =
⚫ | FlashPt =
| AutoignitionPt =
}} }}
}} }}
'''1,2-Dibromotetrafluoroethane''' (C<sub>2</sub>Br<sub>2</sub>F<sub>4</sub>) is a ]. It is also known under codenames R-114B2 and ] 2402. It is a colorless liquid with a boiling point of 47.2 °C. R-114B2 is occasionally used in ]s. It is also used as a tracer chemical in Praxair's Seep Sense leak detection system. It is highly volatile, passes through soil to air, and allows detection in the parts-per-quadrillion range.<ref> Patent #4725551 and Patent #6817227 </ref> '''1,2-Dibromotetrafluoroethane''' (C<sub>2</sub>Br<sub>2</sub>F<sub>4</sub>) is a ]. 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 ]s. It is highly volatile, passes through soil to air, and can be detected in the parts-per-quadrillion range.<ref>Patent #4725551 and Patent #6817227</ref>


Since July 1, 1994, the ] required all nations or parties that are a party to it to eliminate the production, consumption, and trade of ] (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".<ref>{{cite web |url=http://www.ec.gc.ca/Toxiques-toxics/Default.asp?lang=En&n=98E80CC6-1&xml=BCD35FA1-FC4D-40E1-B4AB-D312F7CCF2D5 |title=ARCHIVED - Environment and Climate Change Canada - Pollution and Waste - Dibromotetrafluoroethane |website=www.ec.gc.ca |publisher=]}}</ref>
⚫ On November 8, 2008, an accident aboard ] due to unintentional activation of a fire suppressant system loaded with R-114B2 killed 20 people and injured 21 more.<ref>{{cite web |url=http://www.defense-update.com/analysis/analysis_111108_russian_submarine_fire.html |title=Fire on Board the Russian Navy Akula II Nuclear Submarine kills Twenty Russian Sailors |last=Eschel |first=David |date=November 11, 2008| |work=Defense Update}} Retrieved November 18, 2008.</ref>

⚫ On November 8, 2008, an ] involving the unintentional activation of a fire suppressant system loaded with R-114B2 resulted in the death of 20 people.<ref>{{cite web |url=http://www.defense-update.com/analysis/analysis_111108_russian_submarine_fire.html |title=Fire on Board the Russian Navy Akula II Nuclear Submarine kills Twenty Russian Sailors |last=Eschel |first=David |date=November 11, 2008 |work=Defense Update |access-date=November 15, 2008 |archive-url=https://web.archive.org/web/20090123133238/http://defense-update.com/analysis/analysis_111108_russian_submarine_fire.html |archive-date=January 23, 2009 |url-status=dead }} Retrieved November 18, 2008.</ref>

]


==Notes== ==Notes==
{{reflist}} {{reflist}}

in the lower atmosphere (]) at stations around the world. Abundances are given as pollution free monthly mean mole fractions in ].]]


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