Barium hexafluorosilicate

Structural formula
General
Surname	Barium hexafluorosilicate
other names	Barium hexafluoridosilicate ( IUPAC ); Barium fluorosilicate;
Molecular formula	Ba [SiF 6 ]
Brief description	white orthogonal needles
External identifiers / databases
EC number	241-189-1
ECHA InfoCard	100.037.430
PubChem	28299
Wikidata	Q15632825
properties
Molar mass	279.40 g mol −1
Physical state	firmly
density	4.29 g cm −3
Melting point	300 ° C
solubility	very heavy in water (0.235 g l −1 )
safety instructions
GHS labeling of hazardous substances Caution
H and P phrases	H: 332-302
	P: no P-phrases
Toxicological data	175 mg kg −1 ( LD 50 , rat , oral )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Barium hexafluorosilicate is a chemical compound from the group of fluorosilicates . It was used as an insecticide .

Barium hexafluorosilicate is not approved for use in plant protection products in the European Union or Switzerland .

Extraction and presentation

As a salt that is sparingly soluble in water, barium hexafluorosilicate precipitates from solutions which contain barium ions (e.g. barium chloride ) in addition to hexafluorosilicate ions (e.g. hexafluoridosilicic acid ).

{\ displaystyle \ mathrm {BaCl_ {2} + H_ {2} [SiF_ {6}] \ longrightarrow Ba [SiF_ {6}] \ downarrow +2 \ HCl}}

Individual evidence

↑ ^a ^b ^c David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Properties of the Elements and Inorganic Compounds, pp. 4-50.
^ GWA Milne: Gardner's Commercially Important Chemicals. John Wiley & Sons, 2005, ISBN 978-0-471-73661-5 , p. 52 ( limited preview in Google book search).
↑ ^a ^b Entry on barium hexafluorosilicate in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
↑ Data sheet Barium hexafluorosilicate, technical grade, 94% from Sigma-Aldrich , accessed on August 14, 2013 ( PDF ).
↑ General Directorate Health and Food Safety of the European Commission: Entry on barium fluosilicate in the EU pesticide database ; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 28, 2016.

↑ Regulation (EC) No. 2076/2002 of the Commission of November 20, 2002 (PDF) extending the deadline according to Article 8 (2) of Council Directive 91/414 / EEC and on the non-inclusion of certain active substances in Annex I of this Directive and the revocation of the approval of plant protection products with these active substances.

[crc-1] David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Properties of the Elements and Inorganic Compounds, pp. 4-50.

[gardner-2] GWA Milne: Gardner's Commercially Important Chemicals. John Wiley & Sons, 2005, ISBN 978-0-471-73661-5 , p. 52 ( limited preview in Google book search).

[GESTIS-3] Entry on barium hexafluorosilicate in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .

[Sigma-4] Data sheet Barium hexafluorosilicate, technical grade, 94% from Sigma-Aldrich , accessed on August 14, 2013 ( PDF ).

[5] General Directorate Health and Food Safety of the European Commission: Entry on barium fluosilicate in the EU pesticide database ; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 28, 2016.

[6] Regulation (EC) No. 2076/2002 of the Commission of November 20, 2002 (PDF) extending the deadline according to Article 8 (2) of Council Directive 91/414 / EEC and on the non-inclusion of certain active substances in Annex I of this Directive and the revocation of the approval of plant protection products with these active substances.