| Identification | More | [Name]
Sodium tetrafluoroborate | [CAS]
13755-29-8 | [Synonyms]
SODIUM BOROFLUORIDE
SODIUM FLUOBORATE
SODIUM FLUOROBORATE
SODIUM TETRAFLUOROBORATE
apretonr
Borate(1-),tetrafluoro-,sodium
boronsodiumfluoride(bnaf4)
sodiumborontetrafluoride
sodiumfluoborate(na(bf4))
sodiumfluoroborate(nabf4)
sodiumtetrafluoroborate(1-)
tetrafluoro-borate(1-sodium
boron sodium fluoride
tetrafluoro-borate sodium
Sodium fluoroberate
SODIUM TETRAFLUOROBORATE PURE, FREE FLOWING
SODIUM TETRAFLROROBORATE
Sodium tetrafluoroborate, extra pure, 98%
SODIUM TETRAFLUOROBORATE TECHNICAL
Sodiumtetrafluoroborate,98% | [EINECS(EC#)]
237-340-6 | [Molecular Formula]
BF4Na | [MDL Number]
MFCD00003515 | [Molecular Weight]
109.79 | [MOL File]
13755-29-8.mol |
| Chemical Properties | Back Directory | [Appearance]
white crystals or powder | [Melting point ]
384 °C
| [density ]
2.47 g/mL at 25 °C(lit.)
| [storage temp. ]
Inert atmosphere,Room Temperature | [solubility ]
water: soluble(lit.) | [form ]
Powder, Crystals or Needles | [color ]
White to yellow to beige to brown | [Specific Gravity]
2.47 | [Stability:]
Moisture sensitive; do not store in glass (though the completely dry material does not etch glass). Incompatible with strong oxidizing agents. | [Water Solubility ]
108 g/100 mL (26 ºC) | [Sensitive ]
Hygroscopic | [Merck ]
14,8617 | [Exposure limits]
ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3 | [CAS DataBase Reference]
13755-29-8(CAS DataBase Reference) | [EPA Substance Registry System]
13755-29-8(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
C,Xi | [Risk Statements ]
R34:Causes burns. | [Safety Statements ]
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S25:Avoid contact with eyes . | [RIDADR ]
3260 | [WGK Germany ]
1
| [RTECS ]
ED2975000
| [F ]
21 | [Hazard Note ]
Irritant | [TSCA ]
Yes | [HS Code ]
28269090 | [Safety Profile]
Moderately toxic by subcutaneous route. When heated to decomposition it emits toxic fumes of Fand Na2O. |
| Questions And Answer | Back Directory | [Description]
Sodium tetrafluoroborate is an organic compound that has the molecular formula NaBF4. The compound is a salt that forms white or colorless water-soluble rhombic crystals. It is less soluble in organic solvents and readily soluble in water.
| [Preparation]
Sodium tetrafluoroborate can be prepared by reacting tetrafluoroboric with sodium carbonate or hydroxide.
NaOH + HBF4 → NaBF4 + H2O
Na2CO3 + 2 HBF4 → 2 NaBF4 + H2O + CO2
| [Applications]
Sodium tetrafluoroborate can be used as a catalyst for the synthesis of bis(indolyl)methanes via electrophilic substitution reaction of indoles with ketones and aldehydes. In the synthesis of ionic liquids such as trihexyl(tetradecyl)phosphonium tetrafluoroborat and 1-butyl-3-methylimidazolium tetrafluoroborate.
In the laboratory, sodium tetrafluoroborate may be used for the synthesis of boron fluoride. It may also be used in the synthesis of fluoroheterocyclic and fluoro-nucleic acids. The compound is also used in metal finishing, fluxes, and plating circuits.
|
| Hazard Information | Back Directory | [Chemical Properties]
white crystals or powder | [Uses]
Fluorinating agent, see Lawton, Levy, J. Am. Chem. Soc. 77, 6083 (1955). | [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. | [Flammability and Explosibility]
Notclassified | [Purification Methods]
Crystallise the fluoroborate from hot water (50mL/g) by cooling to 0o. Alternatively, free it from insoluble material by dissolving it in a minimum amount of water; then fluoride ions are removed by adding concentrated lanthanum nitrate in excess. After removing lanthanum fluoride by centrifugation, the supernatant is passed through a cation-exchange column (Dowex 50, Na+-form) to remove any remaining lanthanum [Anbar & Guttman J Phys Chem 64 1896 1960]. It has also been recrystallised from anhydrous MeOH and dried in a vacuum at 70o for 16hours. Keep it dry as it is hygrosopic. [Delville et al. J Am Chem Soc 109 7293 1987.] |
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