Bismuth (V) fluoride

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Crystal structure
Crystal structure of bismuth (V) fluoride
__ Bi 5+      __ F -
Crystal system

tetragonal

Space group

I 4 / m (No. 87)Template: room group / 87

General
Surname Bismuth (V) fluoride
other names

Bismuth pentafluoride

Ratio formula BiF 5
Brief description

white solid

External identifiers / databases
CAS number 7787-62-4
EC number 232-125-3
ECHA InfoCard 100.029.205
PubChem 123260
Wikidata Q965955
properties
Molar mass 303.97 g mol −1
Physical state

firmly

density

5.40 g cm −3

Melting point

151 ° C

boiling point

230 ° C

Sublimation point

550 ° C

solubility

reacts with water

safety instructions
GHS labeling of hazardous substances
03 - Oxidising 05 - Corrosive

danger

H and P phrases H: 272-314
P: 220-280-305 + 351 + 338-310
Thermodynamic properties
ΔH f 0

−887.0 kJ mol −1

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Bismuth (V) fluoride is an inorganic chemical compound of bismuth from the group of fluorides .

Extraction and presentation

Bismuth (V) fluoride can be obtained by reacting bismuth (III) fluoride or bismuth with fluorine at temperatures above 500 ° C or 600 ° C.

properties

Bismuth (V) fluoride is a white, very moisture-sensitive, crystalline solid. It immediately turns yellow to brown in moist air. It sometimes reacts with water with the appearance of fire, with the formation of ozone and bismuth (III) fluoride. Above 50 ° C it reacts with paraffin oil . It has a tetragonal crystal structure with the space group I 4 / m (space group no. 87) and forms a structure with linear chains. It is an extremely strong fluorinating agent and forms hexafluorobismutate (V) M [BiF 6 ] with alkali metal fluorides . With xenon difluoride as a strong fluoride donor, various ionic compounds are formed in a fluoride transfer reaction, depending on the mixing ratio. Template: room group / 87

use

Bismuth (V) fluoride is used as a fluorinating agent.

Individual evidence

  1. a b c d e data sheet Bismuth (V) fluoride, 99.9% trace metals basis from Sigma-Aldrich , accessed on September 23, 2013 ( PDF ).
  2. ^ A b c Dale L. Perry: Handbook of Inorganic Compounds, Second Edition . Taylor & Francis US, 2011, ISBN 1-4398-1462-7 , pp. 483 ( limited preview in Google Book search).
  3. a b c d Georg Brauer , with the assistance of Marianne Baudler a . a. (Ed.): Handbook of Preparative Inorganic Chemistry . 3rd, revised edition. tape I . Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , pp. 219 .
  4. ^ AF Holleman , N. Wiberg : Inorganische Chemie . 103rd edition. Volume 1: Basics and main group elements. Walter de Gruyter, Berlin / Boston 2016, ISBN 978-3-11-049585-0 , p. 952 (reading sample: Part A - Basics of the chemistry of hydrogen. Google book search ).
  5. ^ Jean d'Ans, Ellen Lax, Roger Blachnik: Pocket book for chemists and physicists . Springer DE, 1998, ISBN 3-642-58842-5 , pp. 336 f . ( limited preview in Google Book search).
  6. ^ AF Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 101st edition. Walter de Gruyter, Berlin 1995, ISBN 3-11-012641-9 , p. 816.
  7. Erwin Riedel, Christoph Janiak: Inorganic Chemistry . Walter de Gruyter, 2011, ISBN 3-11-022566-2 , p. 511 ( limited preview in Google Book search).
  8. ^ Ralf Steudel : Chemistry of the non-metals . Syntheses - Structures - Binding - Use. 4th edition. Walter de Gruyter , Berlin / Boston 2014, ISBN 978-3-11-030439-8 , pp. 570 .