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Merck
CN

01544

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
NACRES:
NA.21
PubChem Substance ID:
329747325
UNSPSC Code:
12352106
MDL number:
MFCD00011345

Key Documents

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InChI

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

SMILES string

F.FB(F)F

InChI key

LEMQFBIYMVUIIG-UHFFFAOYSA-N

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

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Information

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Hao Zhang et al.
Nature, 542(7641), 328-331 (2017-02-17)
A colloidal solution is a homogeneous dispersion of particles or droplets of one phase (solute) in a second, typically liquid, phase (solvent). Colloids are ubiquitous in biological, chemical and technological processes, homogenizing highly dissimilar constituents. To stabilize a colloidal system
Mario Latronico et al.
Inorganic chemistry, 50(8), 3539-3558 (2011-03-19)
The protonation of the phosphinito-bridged Pt(I) complex [(PHCy(2))Pt(μ-PCy(2)){κ(2)P,O-μ-P(O)Cy(2)}Pt(PHCy(2))](Pt-Pt) (1) by aqueous HBF(4) or hydrofluoric acid leads selectively to the hydrido-bridged solvento species syn-[(PHCy(2))(H(2)O)Pt(μ-PCy(2))(μ-H)Pt(PHCy(2)){κP-P(OH)Cy(2)}](Y)(2)(Pt-Pt) ([2-H(2)O]Y(2)) {Y = BF(4), F(HF)(n)} when an excess of acid was used. On standing in halogenated solvents
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
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.
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