Bismuth trifluoride

Bismuth trifluoride

Chembox new
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IUPACName = Bismuth(III) fluoride
OtherNames = Bismuth trifluoride
Section1 = Chembox Identifiers
CASNo = 7787-61-3
PubChem =
SMILES =
Section2 = Chembox Properties
Formula = BiF3
MolarMass = 265g mol-1
Appearance = grey-white powder
Density = 5.32 g cm-3http://www.alfa-chemcat.com/daten_msds/D/11844_-_D.pdf]
MeltingPt = 649˚CGreenwood&Earnshaw]
BoilingPt =
Solubility = Insoluble in water
Section3 = Chembox Hazards
MainHazards = Irritant
RPhrases = R36/38
SPhrases = S26
FlashPt =
Autoignition =

Bismuth trifluoride is a chemical compound of bismuth and fluorine. The chemical formula is BiF3. It is a grey-white powder melting at 649°C.

ynthesis

Bismuth trifluoride can be prepared by reacting bismuth(III) oxide with hydrofluoric acid:

:Bi2O3 + 6HF → BiF3 + 3H2O

tructure

β-BiF3 has the YF3 structure where the bismuth atom has distorted 9 coordination, tricapped trigonal prism. Wells A.F. (1984) "Structural Inorganic Chemistry" 5th edition Oxford Science Publications ISBN 0-19-855370-6 ] This structure is generally considered to be ionic, and contrasts with fluorides of the lighter members of group 5, phosphorus trifluoride,PF3,arsenic trifluoride, AsF3 and antimony trifluoride, SbF3 where MX3 molecular units are present in the solid.

References


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