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Arsenic pentafluoride

Arsenic pentafluoride is a chemical compound of arsenic and fluorine. It is a toxic, colorless gas. The oxidation state of arsenic is +5.

Arsenic pentafluoride
Structural formula
Ball-and-stick model
Names
IUPAC name
Arsenic pentafluoride
Other names
Arsenic(V) fluoride,
Arsorane, pentafluoro-
Identifiers
  • 7784-36-3 Y
3D model (JSmol)
  • Interactive image
ChEBI
  • CHEBI:30530 Y
ChemSpider
  • 74203 Y
ECHA InfoCard 100.029.146
  • 82223
UNII
  • I54752Q0OJ Y
  • DTXSID4064842
  • InChI=1S/AsF5/c2-1(3,4,5)6 Y
    Key: YBGKQGSCGDNZIB-UHFFFAOYSA-N Y
  • InChI=1/AsF5/c2-1(3,4,5)6
    Key: YBGKQGSCGDNZIB-UHFFFAOYAA
  • F[As](F)(F)(F)F
Properties
AsF5
Molar mass 169.9136 g mol−1
Appearance colorless gas
Density 2.138 kg/m3 (g/L)[1]
Melting point −79.8 ˚C[1]
Boiling point −52.8 ˚C[1]
Solubility Ethanol, Dimethylether, Benzene
Hazards
GHS labelling:
Danger
H280, H319, H350, H361, H370, H372
P201, P202, P260, P264, P270, P280, P281, P305+P351+P338, P307+P311, P308+P313, P314, P321, P337+P313, P405, P410+P403, P501
NFPA 704 (fire diamond)
NIOSH (US health exposure limits):
PEL (Permissible)
[1910.1018] TWA 0.010 mg/m3[2]
REL (Recommended)
Ca C 0.002 mg/m3 [15-minute][2]
IDLH (Immediate danger)
Ca [5 mg/m3 (as As)][2]
Related compounds
Related group 5 fluorides
Phosphorus pentafluoride
Antimony pentafluoride
Bismuth pentafluoride
Related compounds
Arsenic pentachloride
Arsenic trifluoride
Arsenic pentoxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)

Synthesis edit

Arsenic pentafluoride can be prepared by direct combination of arsenic and fluorine:[3]

2As + 5F2 → 2AsF5

It can also be prepared by the reaction of arsenic trifluoride and fluorine:

AsF3 + F2 → AsF5

or the addition of fluorine to arsenic pentoxide or arsenic trioxide.

2As2O5 + 10F2 → 4AsF5 + 5O2
2As2O3 + 10F2 → 4AsF5 + 3O2

Properties edit

Arsenic pentafluoride is a colourless gas and has a trigonal bipyramidal structure.[3] In the solid state the axial As−F bond lengths are 171.9 pm and the equatorial 166.8 pm. [3] Its point group is D3h.

Reactions edit

Arsenic pentafluoride forms halide complexes and is a powerful fluoride acceptor. An example is the reaction with sulfur tetrafluoride, forming an ionic hexafluoroarsenate complex.[4]

AsF5 + SF4 → SF3+ + AsF6

Safety edit

Arsenic pentafluoride is an extremely dangerous toxin, mainly poisoning liver cells. It has a smell that is similar to vinyl chloride gas.[citation needed]

See also edit

References edit

  1. ^ a b c Record of Arsenic(V) fluoride in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 24/12/2007.
  2. ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0038". National Institute for Occupational Safety and Health (NIOSH).
  3. ^ a b c Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
  4. ^ An investigation of the structures of the adducts of SF4 with BF3, PF5, AsF5, and SbF5 in the solid state and in solution in HF, M. Azeem, M. Brownstein, and R. J. Gillespie Can. J. Chem. 47(22): 4159–4167 (1969), doi:10.1139/v69-689

arsenic, pentafluoride, chemical, compound, arsenic, fluorine, toxic, colorless, oxidation, state, arsenic, structural, formula, ball, stick, model, names, iupac, name, other, names, arsenic, fluoride, arsorane, pentafluoro, identifiers, number, 7784, model, j. Arsenic pentafluoride is a chemical compound of arsenic and fluorine It is a toxic colorless gas The oxidation state of arsenic is 5 Arsenic pentafluoride Structural formula Ball and stick model Names IUPAC name Arsenic pentafluoride Other names Arsenic V fluoride Arsorane pentafluoro Identifiers CAS Number 7784 36 3 Y 3D model JSmol Interactive image ChEBI CHEBI 30530 Y ChemSpider 74203 Y ECHA InfoCard 100 029 146 PubChem CID 82223 UNII I54752Q0OJ Y CompTox Dashboard EPA DTXSID4064842 InChI InChI 1S AsF5 c2 1 3 4 5 6 YKey YBGKQGSCGDNZIB UHFFFAOYSA N YInChI 1 AsF5 c2 1 3 4 5 6Key YBGKQGSCGDNZIB UHFFFAOYAA SMILES F As F F F F Properties Chemical formula AsF5 Molar mass 169 9136 g mol 1 Appearance colorless gas Density 2 138 kg m3 g L 1 Melting point 79 8 C 1 Boiling point 52 8 C 1 Solubility Ethanol Dimethylether Benzene Hazards GHS labelling Pictograms Signal word Danger Hazard statements H280 H319 H350 H361 H370 H372 Precautionary statements P201 P202 P260 P264 P270 P280 P281 P305 P351 P338 P307 P311 P308 P313 P314 P321 P337 P313 P405 P410 P403 P501 NFPA 704 fire diamond 401W OX NIOSH US health exposure limits PEL Permissible 1910 1018 TWA 0 010 mg m3 2 REL Recommended Ca C 0 002 mg m3 15 minute 2 IDLH Immediate danger Ca 5 mg m3 as As 2 Related compounds Related group 5 fluorides Phosphorus pentafluorideAntimony pentafluorideBismuth pentafluoride Related compounds Arsenic pentachlorideArsenic trifluorideArsenic pentoxide Except where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Y verify what is Y N Infobox references Contents 1 Synthesis 2 Properties 3 Reactions 4 Safety 5 See also 6 ReferencesSynthesis editArsenic pentafluoride can be prepared by direct combination of arsenic and fluorine 3 2As 5F2 2AsF5 It can also be prepared by the reaction of arsenic trifluoride and fluorine AsF3 F2 AsF5 or the addition of fluorine to arsenic pentoxide or arsenic trioxide 2As2O5 10F2 4AsF5 5O2 2As2O3 10F2 4AsF5 3O2Properties editArsenic pentafluoride is a colourless gas and has a trigonal bipyramidal structure 3 In the solid state the axial As F bond lengths are 171 9 pm and the equatorial 166 8 pm 3 Its point group is D3h Reactions editArsenic pentafluoride forms halide complexes and is a powerful fluoride acceptor An example is the reaction with sulfur tetrafluoride forming an ionic hexafluoroarsenate complex 4 AsF5 SF4 SF3 AsF6 Safety editArsenic pentafluoride is an extremely dangerous toxin mainly poisoning liver cells It has a smell that is similar to vinyl chloride gas citation needed See also editList of highly toxic gasesReferences edit a b c Record of Arsenic V fluoride in the GESTIS Substance Database of the Institute for Occupational Safety and Health accessed on 24 12 2007 a b c NIOSH Pocket Guide to Chemical Hazards 0038 National Institute for Occupational Safety and Health NIOSH a b c Greenwood Norman N Earnshaw Alan 1997 Chemistry of the Elements 2nd ed Butterworth Heinemann ISBN 978 0 08 037941 8 An investigation of the structures of the adducts of SF4 with BF3 PF5 AsF5 and SbF5 in the solid state and in solution in HF M Azeem M Brownstein and R J Gillespie Can J Chem 47 22 4159 4167 1969 doi 10 1139 v69 689 Retrieved from https en wikipedia org w index php title Arsenic pentafluoride amp oldid 1150094592, wikipedia, wiki, book, books, library,

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