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Revision as of 11:35, 17 February 2011 editBeetstra (talk | contribs)Edit filter managers, Administrators172,031 edits Script assisted update of identifiers from ChemSpider, CommonChemistry and FDA for the Chem/Drugbox validation project - Updated: ChEMBL.← Previous edit Latest revision as of 12:37, 7 September 2024 edit undo46.18.177.138 (talk) External links: Category change 
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{{chembox {{chembox
| Watchedfields = changed
| verifiedrevid = 399894723 | verifiedrevid = 414418288
| ImageFile_Ref = {{chemboximage|correct|??}}
| ImageFile = Dibromodifluoromethane.png | ImageFile = Dibromodifluoromethane.png
| ImageSize = 120px | ImageSize = 120px
| PIN = Dibromo(difluoro)methane
| IUPACName = Dibromodifluoromethane
| OtherNames = Difluorodibromomethane, Carbon dibromide difluoride, Carbon bromide fluoride, Halon 1202, Fluorocarbon 12-B2, FC 12-B2, R 12B2, UN 1941 | OtherNames = Dibromodifluoromethane<br />Difluorodibromomethane<br />Carbon dibromide difluoride<br />Carbon bromide fluoride<br />Halon 1202<br />Fluorocarbon 12-B2<br />FC 12-B2<br />R 12B2<br />UN 1941<br />Freon 12B2
| Section1 = {{Chembox Identifiers |Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 6142 | ChemSpiderID = 6142
| ChEMBL_Ref = {{ebicite|correct|EBI}}
| ChEMBL = 499553 | ChEMBL = 499553
| StdInChI_Ref = {{stdinchicite|correct|chemspider}} | StdInChI_Ref = {{stdinchicite|correct|chemspider}}
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = AZSZCFSOHXEJQE-UHFFFAOYSA-N | StdInChIKey = AZSZCFSOHXEJQE-UHFFFAOYSA-N
| CASNo_Ref = {{cascite|correct|??}}
| CASNo = 75-61-6 | CASNo = 75-61-6
| UNII_Ref = {{fdacite|correct|FDA}}
| EINECS = 200-885-5
| PubChem = 6382 | UNII = 82022727JD
| EINECS = 200-885-5
| SMILES = C(F)(F)(Br)Br
| UNNumber = 1941
| InChI = 1/CBr2F2/c2-1(3,4)5
| RTECS = PA7525000 | PubChem = 6382
| SMILES = BrC(F)(F)Br
}}
| InChI = 1/CBr2F2/c2-1(3,4)5
| Section2 = {{Chembox Properties
| RTECS = PA7525000
| Formula = CBr<sub>2</sub>F<sub>2</sub>
}}
| MolarMass = 209.82 g/mol
|Section2={{Chembox Properties
| Appearance = Colourless gas/liquid
| Formula = CBr<sub>2</sub>F<sub>2</sub>
| Density = 8.7 kg/m³ (for gas)
| MolarMass = 209.82{{nbsp}}g/mol
2.27 g/cm³ (for liquid)
| Appearance = Colourless gas/liquid
| MeltingPt = -101.1°C
| BoilingPt = 22.8 °C | Density = {{ubl
| 8.7{{nbsp}}kg/m<sup>3</sup> (for gas)
| Solubility = Insoluble
| 2.27{{nbsp}}g/cm<sup>3</sup> (for liquid)
| LogP = 1.99
}}
| VaporPressure = 83 kPa at 20 °C
| MeltingPtC = -101.1
}}
| BoilingPtC = 22.8
| Section3 = {{Chembox Hazards
| Solubility = insoluble
| MainHazards = Dangerous for the environment ('''N''')
| NFPA-H = 2 | LogP = 1.99
| VaporPressure = 83{{nbsp}}kPa at 20{{nbsp}}°C
| NFPA-F = 0
}}
| NFPA-R = 0
|Section3={{Chembox Hazards
| NFPA-O =
| SPhrases = {{S23}}, {{S24/25}} | GHSPictograms = {{GHS07}}
| GHSSignalWord = Warning
| FlashPt =
| HPhrases = {{H-phrases|420}}
| Autoignition =
| PPhrases = {{P-phrases|502}}
}}
| NFPA-H = 2
| NFPA-F = 0
| NFPA-R = 0
| NFPA-S =
| FlashPt = Non-flammable
| FlashPt_ref = <ref name=PGCH/>
| AutoignitionPt =
| PEL = TWA 100{{nbsp}}ppm (860{{nbsp}}mg/m<sup>3</sup>)<ref name=PGCH>{{PGCH|0214}}</ref>
| REL = TWA 100{{nbsp}}ppm (860{{nbsp}}mg/m<sup>3</sup>)<ref name=PGCH/>
| IDLH = 2000{{nbsp}}ppm<ref name=PGCH/>
}}
}} }}


'''Dibromodifluoromethane''' is a mixed ]. It is a colorless non-flammable liquid. '''Dibromodifluoromethane''' is a mixed ]. It is a colorless non-flammable liquid. Along with Halons ], ], and ], it is one of the most effective ], however, it is also very toxic. It is a class I ] (ODS).


==Synthesis==
Along with Halons ], ], and ], it is the most effective ], however, also the most toxic one.
Dibromodifluoromethane can be obtained by vapor phase bromination of ].<ref name="HSDB">{{HSDB|ID=1335|name=Dibromodifluoromethane|accessdate=2013-03-10}}</ref>


It is also formed during the fluorination of ].<ref name="Alan Roy Katritzky, Otto Meth-Cohn, Thomas Lonsdale Gilchrist, Charles Wayne Rees">{{citation|author=Alan Roy Katritzky, Otto Meth-Cohn, Thomas Lonsdale Gilchrist, Charles Wayne Rees|date=1995|isbn=0-08-042704-9|pages=226|publisher=Elsevier|title=Comprehensive Organic Functional Group Transformations: Carbon with Three Or ...|url={{Google books|YzBveZGm0GEC||page=226|plainurl=yes}}}}<!-- auto-translated by Module:CS1 translator --></ref>
It is a class I ] (ODS).


== Table of physical properties == == Table of physical properties ==

{| class="wikitable" {| class="wikitable"
! Property ! Property
! Value ! Value
|- |-
| ] (ρ) at 15 °C (liquid) | ], ρ, at 15{{nbsp}}°C (liquid)
| 2.3063 g.cm<sup>−3</sup> | 2.3063{{nbsp}}g/cm<sup>3</sup>
|- |-
| ] (T<sub>c</sub>) | ], ''T''<sub>c</sub>
| 198.3 °C (471.3 K) | 198.3{{nbsp}}°C, 471.3{{nbsp}}K
|- |-
| Critical pressure (p<sub>c</sub>) | Critical pressure, p<sub>c</sub>
| 4.13 MPa (40.8 bar) | 4.13{{nbsp}}MPa, 40.8{{nbsp}}bar
|- |-
| ] (n) at 20 °C, D | ], ''n'' at 20{{nbsp}}°C, D
| 1.398 | 1.398
|- |-
| ] | ]
| 0.7 D | 0.7{{nbsp}}D
|- |-
| ] (ODP) | ], ODP
| 0.4 (] = 1) | 0.4, ] is 1
|- |-
| ], GWP
| 231, ] is 1<ref>Hodnebrog, Ø., M. Etminan, J. S. Fuglestvedt, G. Marston, G. Myhre, C. J. Nielsen, K. P. Shine, and T. J. Wallington (2013), ‘Global warming potentials and radiative efficiencies of halocarbons and related compounds: A comprehensive review,’ ''Reviews of Geophysics'', vol. 51, pp. 300-378, doi:10.1002/rog.20013.</ref>
|} |}

==References==
{{reflist}}


== External links == == External links ==
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* {{PGCH|0214}} * {{PGCH|0214}}
* *
* *


{{Halomethanes}} {{Halomethanes}}
{{fluorine compounds}}


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] ]
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]

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