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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
Richard Ting et al.
Journal of the American Chemical Society, 130(36), 12045-12055 (2008-08-15)
The use of a boronic ester as a captor of aqueous [(18)F]-fluoride has been previously suggested as a means of labeling biomolecules in one step for positron emission tomography (PET) imaging. For this approach to be seriously considered, the [(18)F]-labeled
Ming-Hsi Chiang et al.
Inorganic chemistry, 48(16), 7604-7612 (2009-07-16)
Iron azadithiolate phosphine-substituted complex and its protonated species featuring the NH proton and/or bridging Fe hydride, [Fe(2)(mu-S(CH(2))(2)N(n)Pr(H)(m)(CH(2))(2)S)(mu-H)(n)(CO)(4)(PMe(3))(2)](2)((2m+2n)+) (1, m = n = 0; [1-2H(N)](2+), m = 1, n = 0; [1-2H(N)2H(Fe)](4+), m = n = 1), are prepared to mimic
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
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
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