207934

Tetrafluoroboric acid solution

48 wt. % in H₂O

• Linear Formula: HBF₄
• CAS Number: 16872-11-0
• Molecular Weight: 87.81
• MDL number: MFCD00011345
• UNSPSC Code: 12352106
• PubChem Substance ID: 329752030
• NACRES: NA.21

Properties

• vapor density: 3 (vs air)
• Quality Level: 200
• vapor pressure: 5 mmHg ( 20 °C)
• form: liquid
• concentration: 46.0-52.0% in NaOH (titration); 48 wt. % in H₂O
• density: 1.4 g/mL at 25 °C
• SMILES string: F.FB(F)F
• InChI: 1S/BF3.FH/c2-1(3)4;/h;1H
• InChI key: LEMQFBIYMVUIIG-UHFFFAOYSA-N

Description

General description

Tetrafluoroboric acid is used as a catalyst for the protection and deprotection reactions of various carbohydrates. It participates in the synthesis of 4-sulfonic acid phenyl diazonium tetrafluoroborate, which was required for the preparation of sulfonated graphene (SG).

Application

Tetrafluoroboric acid solution may be used as a catalyst for the hydration of aromatic haloalkynes to α-halomethyl ketones in the absence of metal catalysts. It may also be used the epoxidized soybean oil (ESBO) ring opening step of fatty acids preparation.

Safety Information

• pictograms: GHS05
• signalword: Danger
• hcodes: H314
• pcodes: P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363 - P405
• Hazard Classifications: Eye Dam. 1 - Skin Corr. 1B
• Storage Class: 8B - Non-combustible corrosive hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable