Barium hexafluorosilicate

Barium hexafluorosilicate is an inorganic chemical compound with the chemical formula BaSiF₆.^[3][4][5]

Barium hexafluorosilicate

Names
IUPAC name barium(2+);hexafluorosilicon(2-)
Other names Barium silicofluoride, bariumsilicofluorid
Identifiers
CAS Number	17125-80-3
3D model (JSmol)	Interactive image
ChemSpider	26327
ECHA InfoCard	100.037.430
EC Number	241-189-1
PubChem CID	28299
UNII	W4A72RWE6Q
CompTox Dashboard (EPA)	DTXSID80884961
InChI InChI=1S/Ba.F6Si/c;1-7(2,3,4,5)6/q+2;-2 Key: RRLMRHFZRPYSNK-UHFFFAOYSA-N
SMILES F[Si-2](F)(F)(F)(F)F.[Ba+2]
Properties
Chemical formula	BaF6Si
Molar mass	279.402 g·mol−1
Appearance	White crystalline powder
Density	4.279 g/cm3[1]
Melting point	1580
Solubility in water	poorly soluble
Hazards
GHS labelling:[2]
Pictograms
Signal word	Warning
Hazard statements	H302, H332
Precautionary statements	P261, P264, P270, P271, P301+P317, P304+P340, P317, P330, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Synthesis

As a salt that is poorly soluble in water, barium hexafluorosilicate precipitates from solutions that contain barium ions (e.g. barium chloride as well as hexafluorosilicate ions (e.g. hexafluorosilicic acid).^[6]

BaCl₂ + H₂[SiF₆] → Ba[SiF₆] + 2HCl

Uses

The compound is used as a chemical reagent in experimental applications. In various chemical reactions and processes, the compound acts as a source of barium and hexafluorosilicate ions.^[7]

It was also used as an insecticide.^[8]