Antimony trifluoride

Other name: Antimony (III) fluoride
CAS no. : 7783-56-4
EINECS no. : 232-009-2
Molecular formula: F3Sb
Molecular weight: 178.7552
Molecular formula: SbF3
Molecular weight: 178.75
Density: 4.379
Melting point: 292 DHS C
Sublimation point :376 掳 C
Boiling point: 376 DHS C
Water solubility :385 G/100 ML (20 掳 C)

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Index SbF3 鈮 98%
Sulfate 鈮 0.02%
Chloride 鈮 0.02%
Hydrogen sulfide does not precipitate 鈮 0.30%
Fe 鈮0.02%

Property: colorless rhombic system is easy to moisture. Solid. The density of 4.379 g/cm3. Melting point is 292 鈩. Sublimation at 319鈩. Soluble in water and hydrofluoric acid. Insoluble in benzene, chlorobenzene, and heptane. Hydrolysis is slow in water. It is a mild fluoridation agent, which is greatly increased when used with chlorine, bromine or antimony pentachloride. Antimony trioxide is dissolved in excess anhydrous hydrofluoric acid or hydrofluoric acid at a concentration above 55%, and then evaporated until dried. Used to prepare antimony pentafluoride, complex metal fluoride, etc..

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