Difference between revisions of "Boron trifluoride"

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(Created page with ''''Boron trifluoride''', BF<sub>3</sub>, is a colourless, toxic gas. It is used as a strong Lewis acid in organic synthesis, either as the gas or (more usually) as an add…')
 
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{{chembox
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|  Name = Boron trifluoride
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| Section1 = {{Chembox Identifiers
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|  ChemSpiderID = 6116
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|  InChI=1/BF3/c2-1(3)4
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|  InChIKey = WTEOIRVLGSZEPR-UHFFFAOYAW
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|  StdInChI = 1S/BF3/c2-1(3)4
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|  StdInChIKey = WTEOIRVLGSZEPR-UHFFFAOYSA-N
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|  CASNo = 7637-07-2
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|    CASNo_Ref = {{cascite}}
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|  CASOther = <br> 13319-75-0 (dihydrate)
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|  EINECS = 231-569-5
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|  RTECS = ED2275000
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|  UNNumber = 1008
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  }}
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| Section2 = {{Chembox Properties
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|  Reference =
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|  Formula = BF<sub>3</sub>
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|  MolarMass = 67.806 g mol<sup>−1</sup>
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|  Appearance = colorless gas
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|  Density = 27.6 g dm<sup>−3</sup>
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|  Solubility = reacts violently
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|  MeltingPt = −126.8 °C
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|  BoilingPt = −100.3 °C
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|  CriticalPt = −12.3 °C
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  }}
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| Section7 = {{Chembox Hazards
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|  Reference = <ref>{{CLP Regulation|index=603-001-00-X|page=476}}</ref><ref>{{PGCH-ref|id=0062|name=Boron trifluoride}}.</ref>
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|  EUIndex = 005-001-00-X
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|  MSDS = {{ICSC-small|0231}}
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|  GHSPictograms =  {{GHS04|Press. Gas}}{{GHS06|Acute Tox. 2}}{{GHS05|Skin Corr. 1A}}
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|  GHSSignalWord = DANGER
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|  HPhrases = {{H-phrases|330|314}}
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|  FlashPt = non-flammable
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|  PEL = 1 ppm ceiling ({{nowrap|3 mg m<sup>−3</sup>}})
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  }}
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| Section8 = {{Chembox Related
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|  OtherCpds = [[Boron trichloride]]<br/>[[Boron tribromide]]
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  }}
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}}
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{{chembox
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|  Name = Boron trifluoride dihydrate
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|  IUPACName = boron trifluoride — water (1:2)
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| Section1 = {{Chembox Identifiers
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|  CASNo = 13319-75-0
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|  RTECS = ED2275000
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|  UNNumber = 2851
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  }}
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| Section2 = {{Chembox Properties
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|  Reference =
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|  Formula = BF<sub>3</sub>·2H<sub>2</sub>O
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|  MolarMass = 103.837 g mol<sup>−1</sup>
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|  Appearance = colourless liquid
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|  Density = 1.64 g cm<sup>−3</sup>
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|  Solubility = reacts
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  }}
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}}
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'''Boron trifluoride''', BF<sub>3</sub>, is a colourless, toxic gas. It is used as a strong [[Lewis acid]] in [[organic synthesis]], either as the gas or (more usually) as an adduct with a weak [[Lewis base]] such as [[diethyl ether]] or [[dimethyl sulfide]].
 
'''Boron trifluoride''', BF<sub>3</sub>, is a colourless, toxic gas. It is used as a strong [[Lewis acid]] in [[organic synthesis]], either as the gas or (more usually) as an adduct with a weak [[Lewis base]] such as [[diethyl ether]] or [[dimethyl sulfide]].
  

Revision as of 19:10, 20 June 2010

Boron trifluoride
Identifiers
InChI InChI=1/BF3/c2-1(3)4
InChIKey WTEOIRVLGSZEPR-UHFFFAOYAW
Standard InChI InChI=1S/BF3/c2-1(3)4
Standard InChIKey WTEOIRVLGSZEPR-UHFFFAOYSA-N
CAS number [7637-07-2],
13319-75-0 (dihydrate)
EC number 231-569-5
UN number 1008
RTECS ED2275000
ChemSpider 6116
Properties
Chemical formula BF3
Molar mass 67.806 g mol−1
Appearance colorless gas
Density 27.6 g dm−3
Melting point

−126.8 °C

Boiling point

−100.3 °C

Critical point −12.3 °C
Solubility in water reacts violently
Hazards[1][2]
Material safety data sheet (MSDS) ICSC 0231
EU index number 005-001-00-X
GHS pictograms Press. GasAcute Tox. 2Skin Corr. 1A
GHS signal word DANGER
GHS hazard statements H330, H314
Flash point non-flammable
PEL (U.S.) 1 ppm ceiling (3 mg m−3)
Related compounds
Other compounds Boron trichloride
Boron tribromide
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Boron trifluoride dihydrate
IUPAC name boron trifluoride — water (1:2)
Identifiers
CAS number [13319-75-0]
UN number 2851
RTECS ED2275000
Properties
Chemical formula BF3·2H2O
Molar mass 103.837 g mol−1
Appearance colourless liquid
Density 1.64 g cm−3
Solubility in water reacts
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Boron trifluoride, BF3, is a colourless, toxic gas. It is used as a strong Lewis acid in organic synthesis, either as the gas or (more usually) as an adduct with a weak Lewis base such as diethyl ether or dimethyl sulfide.

References

  1. ↑ Index no. 603-001-00-X of Annex VI, Part 3, to Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006. OJEU L353, 31.12.2008, pp 1–1355 at p 476.
  2. ↑ Boron trifluoride. In Pocket Guide to Chemical Hazards; U.S. Department of Health and Human Services (NIOSH) Publication No. 2005-149; Government Printing Office: Washington, DC, 2005. ISBN 9780160727511, <http://www.cdc.gov/niosh/npg/npgd0062.html>.

External links

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