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Names | |||
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Other names sodium fluoroborate, NaBF4 | |||
Identifiers | |||
3D model (JSmol) | |||
ChemSpider | |||
ECHA InfoCard | 100.033.931 | ||
PubChem CID | |||
UNII | |||
CompTox Dashboard (EPA) | |||
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Properties | |||
NaBF4 | |||
Molar mass | 109.794 g/mol | ||
Density | 2.47 g/cm3 | ||
Melting point | 384 °C (723 °F; 657 K) | ||
Related compounds | |||
Other cations | Nitrosonium tetrafluoroborate | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Sodium tetrafluoroborate is an inorganic compound with formula NaBF4. It is a salt that forms colorless or white rhombic crystals and is soluble in water (108 g/100 mL) but less soluble in organic solvents. [1]
Sodium tetrafluoroborate is used in some fluxes used for brazing and to produce boron trifluoride. [2]
Sodium tetrafluoroborate can be prepared by neutralizing tetrafluoroboric acid with sodium carbonate or sodium hydroxide. [3]
Alternatively the chemical can be synthesized from boric acid, hydrofluoric acid, and sodium carbonate: [2]
On heating to its melting point, sodium tetrafluoroborate decomposes to sodium fluoride and boron trifluoride: [4]
It is a source of tetrafluoroborate anion, which is used in organic chemistry for the preparation of salts. Sodium tetrafluoroborate can be used for synthesis of ionic liquids, where tetrafluoroborate is the anion.
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