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16872-11-0 - Tetrafluoroboric acid, ca 50% w/w aq. soln. - Fluoboric acid - Tetrafluoroboric acid - L14037 - Alfa Aesar

L14037 Tetrafluoroboric acid, ca 50% w/w aq. soln.

CAS Number
16872-11-0
Synonyms
Fluoboric acid
Tetrafluoroboric acid

Size Price ($) Quantity Availability
100g 27.20
500g 60.20
2500g 154.00
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Tetrafluoroboric acid, ca 50% w/w aq. soln.

MDL
MFCD00011345
EINECS
240-898-3

Chemical Properties

Formula
HBF4
Formula Weight
87.81
Boiling Point
130° dec.
Density
1.4
Solubility
Miscible with water.

Applications

Tetrafluoroboric acid is used in conjunction with various methods of cleaning and to treat the surface of substrates. It is also used as a radiotracer.

Notes

Incompatible with strong bases, oxidizing agents and acids.

Literature References

Precursor of tetrafluoroborate salts of various stabilized cations. See, e.g.: Org. Synth. Coll., 5, 1135 (pyrylium), 1138 (tropylium); 6, 364 (sulfonium), 991 (cyclopropenium).

Addition to aqueous solutions of aryldiazonium salts usually results in precipitation of the diazonium tetrafluoroborates, which are often stable enough to be isolated, and can undergo various reactions in non-aqueous solvents. For hydrodediazoniation in the presence of formamide, see: J. Chem. Soc., Perkin 1, 873 (1986). Probably their most important use is the Schiemann (or Balz-Schiemann) synthesis of aryl fluorides in which the tetrafluoroborate salt is heated neat or in an inert solvent. For examples, see: Org. Synth. Coll., 2, 188, 295, 299 (1943). Reviews: Org. React., 5, 193 (1949); Adv. Fluorine. Chem., 4, 1 (1965). See also Hexafluorophosphoric acid, L15728.

Chen, L.; Cao, X.; Huang, D.; Pan, Q. Switchable dielectric phase transition in tris(1-(chloromethyl)-1,4-diazabicyclo[2.2.2]octane) tetra(tetrafluoroborate) dichloride. Inorg. Chem. Commun. 2015, 61, 93-96.

Zhong, Z.; Brokmeiera, H.; Maawad, E.; Schell, N. In-situ investigation of the anisotropic mechanical behavior of rolled AA 7020-T6 alloy through lattice strain evolution during uniaxial tension. Mater. Sci. Eng., A 2015, 639, 519-525.

GHS Hazard and Precautionary Statements

Hazard Statements: H301-H314-H318

Toxic if swallowed. Causes severe skin burns and eye damage. Causes serious eye damage.

Precautionary Statements: P260u-P301+P310a-P303+P361+P353-P305+P351+P338-P405-P501a

IF SWALLOWED: IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Merck
14,4149
Hazard Class
8
Packing Group
II
Harmonized Tariff Code
2811.19
TSCA
Yes
RTECS
ED2685000

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