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202215

Sigma-Aldrich

Sodium tetrafluoroborate

98%

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Synonym(s):
Sodium fluoroborate
Linear Formula:
NaBF4
CAS Number:
13755-29-8
Molecular Weight:
109.79
EC Number:
237-340-6
MDL number:
MFCD00003515
PubChem Substance ID:
329751994
NACRES:
NA.21

Quality Level

200

Assay

98%

form

powder or crystals

solubility

water: soluble(lit.)

density

2.47 g/mL at 25 °C (lit.)

SMILES string

[Na+].F[B-](F)(F)F

InChI

1S/BF4.Na/c2-1(3,4)5;/q-1;+1

InChI key

KGJZTOFHXCFQIV-UHFFFAOYSA-N

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This Item
10760371650342483
Sodium tetrafluoroborate 98%

Sigma-Aldrich

202215

Sodium tetrafluoroborate

Sodium formate reagent grade, 97%

Sigma-Aldrich

107603

Sodium formate

Sodium phosphate dibasic dodecahydrate puriss. p.a., crystallized, ≥99.0% (T)

Sigma-Aldrich

71650

Sodium phosphate dibasic dodecahydrate

Sodium phosphate 96%

Sigma-Aldrich

342483

Sodium phosphate

form

powder or crystals

form

crystalline powder, powder, crystals or granules

form

crystals

form

solid

solubility

water: soluble(lit.)

solubility

water: soluble(lit.)

solubility

water: soluble 35.8 g/L at 20 °C

solubility

H2O: slightly soluble(lit.)

density

2.47 g/mL at 25 °C (lit.)

density

-

density

-

density

-

General description

Sodium tetrafluoroborate (NaBF4) is colorless sodium salt and its crystals belong to the rhombic crystal system. It can be synthesized by reacting tetrafluoroboric acid with sodium carbonate or hydroxide.

Application

Sodium tetrafluoroborate may be used as a catalyst for the synthesis of bis(indolyl)methanes via electrophilic substitution reaction of indoles with aldehydes and ketones. It may also be used as a source of tetrafluoroborate anoins during the synthesis of ionic liquids like 1-butyl-3-methylimidazolium tetrafluoroborate and trihexyl(tetradecyl)phosphonium tetrafluoroborate.
Sodium tetrafluoroborate may be used for the laboratory synthesis of boron fluoride. It may be used for the synthesis of fluoro-nucleic acids and fluoroheterocyclic compounds.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8B - Non-combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Highly efficient synthesis of bis (indolyl) methanes catalyzed by sodium tetrafluoroborate.
Kamble VT, et al.
Chin. J. Chem., 25(1), 13-15 (2007)
Physical and electrochemical properties of 1-butyl-3-methylimidazolium bromide, 1-butyl-3-methylimidazolium iodide, and 1-butyl-3-methylimidazolium tetrafluoroborate.
Kim KS, et al.
Korean Journal of Chemical Engineering, 21(5), 1010-1014 (2004)
Industrial preparation of phosphonium ionic liquids.
Bradaric CJ, et al.
Green Chemistry, 5(2), 143-152 (2003)
Facile direct conversion of amino-heterocycles to fluoro-heterocycles using t-butylthionitrite or t-butylthionitrate with sodium tetrafluoroborate.
Yong HK, et al.
Tetrahedron Letters, 31(21), 3019-3022 (1990)
Eagleson M.
Concise Encyclopedia Chemistry, 1001-1001 (1994)
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