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Safety Information

01544

Sigma-Aldrich

Tetrafluoroboric acid

49.5-50.5%

Synonym(s):

Fluoroboric acid

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About This Item

Linear Formula:
HBF4
CAS Number:
16872-11-0
Molecular Weight:
87.81
MDL number:
MFCD00011345
UNSPSC Code:
12352106
PubChem Substance ID:
329747325
NACRES:
NA.21

form

liquid

concentration

49.5-50.5%

impurities

≤0.005% heavy metals (as Pb)
≤0.02% hexafluorosilic acid (H2SiF6)
1-2% free boric acid

pH

1 (20 °C, 8.7 g/L)

density

1.38 g/mL at 20 °C (lit.)

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤200 mg/kg

cation traces

Cu: ≤5 mg/kg
Fe: ≤50 mg/kg
Ni: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

F.FB(F)F

InChI

1S/BF3.FH/c2-1(3)4;/h;1H

InChI key

LEMQFBIYMVUIIG-UHFFFAOYSA-N

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Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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M P Dariel et al.
Dental materials : official publication of the Academy of Dental Materials, 11(3), 208-217 (1995-05-01)
The purpose of this study was to develop a new technology for preparing mercury-free metallic dental restorative materials. The novel approach relies on the cold welding of surface treated silver particles. At ambient temperature, intermetallic compound formation takes place spontaneously
Gary A Molander et al.
Organic letters, 12(21), 4876-4879 (2010-10-01)
Amidomethyltrifluoroborates were successfully synthesized in a one-pot fashion and used in cross-coupling reactions with a wide variety of aryl and heteroaryl chlorides.
X B Zhang et al.
The Analyst, 125(12), 2285-2288 (2001-02-24)
Several mu-oxo-bismetalloporphyrin complexes were synthesized for preparing fluoroborate sensors. The electrode based on mu-oxo-bis[tetra(p-chlorophenyl)porphinatomanganese(III)] with an optimized membrane composition shows a potentiometric response towards fluoroborate ion over the concentration range from 4.3 x 10(-7) to 1.0 x 10(-1) mol l-1
Dong-Su Kim et al.
Organic letters, 12(5), 1092-1095 (2010-02-13)
A novel series of alkyne-containing potassium organotrifluoroborates were prepared in good yields from the corresponding haloaryltrifluoroborates and various alkynes via Sonogashira coupling reaction. Also, the Suzuki-Miyaura cross-coupling reaction of alkynylaryltrifluoroborates with aryl and alkenyl bromides was achieved in the presence
Seck J Kim et al.
Journal of agricultural and food chemistry, 51(11), 3208-3214 (2003-05-15)
Mixtures of t,t conjugated linoleic acid methylester (t,t CLA-Me) isomers were prepared from synthetic CLA, consisting of 47.8% t10,c12 CLA; 45.5% c9,t11 CLA; 2.0% t,t CLA; and 4.7% others, by methylation with BF(3)/methanol (designated TT-TC/CT) in conjunction with purification at
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