Bismuth trifluoride
Bismuttrifluorid
White, odorless solid
Fixed
5.32 g · cm -3
727 ° C
Insoluble in water
Risk
2.5 mg · kg -1 as fluoride
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Bismuth ( III ) fluoride is a chemical bond between bismuth and fluorine. It has the chemical formula BiF3 and can be used for the preparation of bismuth ( V ) fluoride.
Production and representation
Bismuth ( III ) fluoride can be synthesized by reaction of bismuth ( III) oxide with hydrofluoric acid.
Also, the reaction with bismuth oxychloride is successful:
The reaction of bismuth ( III) hydroxide with aqueous hydrofluoric acid does not provide a pure bismuth (III) fluoride, but oxide fluorides.
Properties
Bismuth ( III ) fluoride is a white, crystalline solid. It has an orthorhombic crystal structure of ytterbium (III ) fluoride - type.