Bismuth trifluoride

Names
IUPAC name

Bismuth(III) fluoride

Other names

Bismuth trifluoride

Identifiers

CAS Number

* 7787-61-3 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 21172751

EC Number |

* 232-124-8

PubChem CID

* 82233

UNII |

* 6I46O71A7B Y

InChI

* InChI=1/Bi.3FH.3H/h;3*1H;;;/q+3;;;;;;/p-3/rBiH3.3FH/h1H3;3*1H/q+3;;;/p-3

Key: GRQDKISMHISLGB-IZWAAGQTAY

SMILES

* [F-].[F-].[F-].[BiH3+3]

Properties

Chemical formula

| BiF3
Molar mass | 265.97550 g/mol
Appearance  | grey-white powder
Density | 5.32 g cm−3[1]
Melting point | 649˚C[2]

Solubility in water

| Insoluble in water[1]

Magnetic susceptibility (χ)

| -61.0·10−6 cm3/mol
Structure

Crystal structure

| Orthorhombic, oP16, SpaceGroup = Pnma, No. 62 (β phase)
Hazards
Main hazards | Irritant
GHS pictograms |
GHS Signal word | Danger

GHS hazard statements

| H314

GHS precautionary statements

| P260, P264, P280, P301+330+331, P303+361+353, P304+340, P305+351+338, P310, P321, P363, P405, P501
NFPA 704 (fire diamond)  |

Related compounds

Other anions

| Bismuth chloride

Other cations

* Nitrogen trifluoride
* Phosphorus trifluoride
* Arsenic trifluoride
* Antimony trifluoride

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Bismuth(III) fluoride or 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.

It occurs in nature as the rare mineral gananite.

## Contents

* 1 Synthesis
* 2 Structure
* 3 Reactions
* 4 Uses
* 5 References

## Synthesis

Bismuth fluoride can be prepared by reacting bismuth(III) oxide with hydrofluoric acid:[2]

Bi2O3 \+ 6 HF → 2 BiF3 \+ 3 H2O

## Structure

α-BiF3 has a cubic crystalline structure (Pearson symbol cF16, space group Fm-3m, No. 225). BiF3 is the prototype for the D03 structure, which is adopted by several intermetallics, including Mg3Pr, Cu3Sb, Fe3Si, and AlFe3,[3] as well as by the hydride LaH3.0.[4] The unit cell is face-centered cubic with Bi at the face centers and vertices, and F at the octahedral site (mid-edges, center), and tetrahedral sites (centers of the 8 sub cubes) - thus the primitive cell contains 4 Bi and 12 F.[5] Alternatively, with the unit cell shifted (1/4,1/4,1/4) the description can be of a fcc cell with face, edge, corner, and centers filled with F, and half (4 of) the octant centers with F, the other half with Bi (each octant type tetrahedrally arranged).[4] The edge length of the BiF3 cell is 0.5853 nm.[4]

β-BiF3 has the YF3 structure where the bismuth atom has distorted 9 coordination, tricapped trigonal prism.[6] This structure is generally considered to be ionic, and contrasts with fluorides of the lighter members of group 15, phosphorus trifluoride, PF3, arsenic trifluoride, AsF3 and antimony trifluoride, SbF3, where MX3 molecular units are present in the solid.[6]

## Reactions

BiF3 is unaffected by water and is almost insoluble. It does not form complexes readily but the following, BiF3.3HF and BiF4− in NH4BiF4, are known. The addition compound H3BiF6 is hydrolysed by water forming BiOF.[7]

## Uses

BiF3 has received research attention as a possible electrode material for lithium batteries and as a luminescence host material for lanthanum-doped phosphors.[8]

## References

1. ↑ 1.0 1.1 http://www.alfa.com/content/msds/english/11844.pdf [|permanent dead link|dead link}}]
2. ↑ 2.0 2.1 Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
3. ↑ De Graef, Marc, ed., "Appendix 1. Crystal Structure Descriptions", The Structure of Materials, Cambridge University Press, A1-2, A1-11
4. ↑ 4.0 4.1 4.2 Galasso, Francis S. (1970), Structure and Properties of Inorganic Solids: International Series of Monographs in Solid State Physics, Pergammon Press, 3.5. BiF3, DO3, Fm3m, Cubic. pp. 50–51
5. ↑ Sólyom, Jenö (2007), Fundamentals of the Physics of Solids: Volume 1: Structure and Dynamics, p. 220, ISBN 978-3-540-72599-2
6. ↑ 6.0 6.1 Wells A.F. (1984) Structural Inorganic Chemistry 5th edition Oxford Science Publications ISBN:0-19-855370-6
7. ↑ Norman, Nicholas C (1998). Chemistry of arsenic, antimony, and bismuth. Springer. pp. 88. ISBN 978-0-7514-0389-3. https://books.google.com/books?id=vVhpurkfeN4C&pg=PA50.
8. ↑ Xie, Zhi; Wei, Bin; Wang, Zhongchang (2018-06-01). "Structural stability, electronic structures and enhanced photocatalytic properties of BiF3 nanowires: A first-principles study" (in en). Ceramics International 44 (8): 9623–9632. doi:10.1016/j.ceramint.2018.02.189. ISSN 0272-8842. https://www.sciencedirect.com/science/article/pii/S0272884218305066.

* v
* t
* e

Bismuth compounds

Bismuth(III)|

* BiBr3
* BiCl3
* Bi4Ge3O12
* BiOCl
* Bi2Se3
* Bi12SiO20
* Bi2O2(CO3)
* Bi2Te3
* BiF3
* BiI3
* Bi(NO3)3
* Bi2O3
* Bi(OH)3
* Bi2S3
* BiH3
* BiOHOCOC6H4O

| Organobismuth(III)|

* C4H4BiH

|

Bismuth(V)|

* NaBiO3
* BiF5
* Bi2O5

* v
* t
* e

Fluorine compounds

| HF |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | He

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LiF | BeF2 |  |  |  |  |  |  |  |  |  |  | BF3
B2F4 | CF4 | NF3 | OF2 | F− | Ne
NaF | MgF2 |  |  |  |  |  |  |  |  |  |  | AlF3 | SiF4 | PF3
PF5 | SF2
SF4
SF6 | ClF
ClF3
ClF5 | Ar
KF | CaF2 | ScF3 | TiF3
TiF4 | VF3
VF4
VF5 | CrF2
CrF3
CrF4
CrF5 | MnF2
MnF3 | FeF2
FeF3 | CoF2
CoF3 | NiF2 | CuF
CuF2 | ZnF2 | GaF3 | GeF4 | AsF3
AsF5 | SeF4
SeF6 | BrF3
BrF5 | KrF2
RbF | SrF2 | YF3 | ZrF4 | NbF4
NbF5 | MoF5
MoF6 | TcF6 | RuF3
RuF4
RuF5
RuF6 | RhF6 | PdF2 | AgF
AgF2
Ag2F | CdF2 | InF3 | SnF2
SnF4 | SbF3
SbF5 | TeF4 | IF
IF3
IF5
IF7 | XeF2
XeF4
XeF6
CsF | BaF2 | *  | HfF4 | TaF5 | WF4
WF6 | ReF4
ReF5
ReF6
ReF7 | OsF4
OsF5
OsF6 | IrF3
IrF5
IrF6 | PtF4
PtF6 | AuF3
Au2F10
AuF5·F2
| HgF2
Hg2F2 | TlF
TlF3 | PbF2
PbF4 | BiF3
BiF5 | Po | At | RnF2
Fr | Ra | **  | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og
|  | ↓ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| * | LaF3 | CeF3 | Pr | NdF3 | PmF3 | SmF3
| Eu | Gd | Tb | DyF3 | Ho | Er | Tm | YbF3
| Lu |
| ** | AcF3 | ThF4 | Pa | UF3
UF4
UF5
UF6 | NpF3
NpF4
NpF5
NpF6
| PuF3
PuF4
PuF5
PuF6 | AmF3
AmF4 | CmF3 | Bk | Cf | Es | Fm | Md | No | Lr |

Other|

* AgBF4
* AgPF6
* Cs2AlF5
* K3AlF6
* Na3AlF6
* KAsF6
* LiAsF6
* NaAsF6
* HBF4
* KBF4
* LiBF4
* NaBF4
* RbBF4
* Ba(BF4)2
* Ni(BF4)2
* Pb(BF4)2
* Sn(BF4)2
* BaClF
* BaSiF6
* BaGeF6
* BrOF3
* BrO2F
* CBrF3
* CBr2F2
* CBr3F
* CClF3
* CCl2F2
* CCl3F
* CFN
* CF2O
* CF3I
* CHF3
* CH2F2
* CH3F
* C2Cl3F3
* C2H3F
* C6H5F
* C7H5F3
* C15F33N
* ClFO2
* CrFO4
* CrF2O2
* CsBF4
* NH4F
* FNO
* FNO2
* FNO3
* KHF2
* NaHF2
* ThOF2
* NH5F2
* (NH4)2SiF6
* F2OS
* F3OP
* PSF3
* HPF6
* HSbF6
* NH4PF6
* KPF6
* KSbF6
* LiPF6
* NaPF6
* NaSbF6
* Na2SiF6
* Na2TiF6
* Na2ZrF6
* TlPF6
* IOF3
* K2NbF7
* K2TaF7
* IO3F
* UO2F2

Chemical formulas

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