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In the inorganic and organometallic chemistry laboratory, silver tetrafluoroborate, sometimes referred to "silver BF-4", is a useful reagent.In dichloromethane, silver tetrafluoroborate is a moderately strong oxidant. [3]
Despite the low reactivity of the tetrafluoroborate anion in general, BF − 4 serves as a fluorine source to deliver an equivalent of fluoride. [2] The Balz–Schiemann reaction for the synthesis of aryl fluorides is the best known example of such a reaction. [3]
Trimethyloxonium tetrafluoroborate is the organic compound with the formula [(CH 3) 3 O] + [BF 4] −. (It is sometimes called "Meerwein's salt" after Hans Meerwein. [1] [a]) This salt is a strong methylating agent, being a synthetic equivalent of CH + 3.
Ferrocenium tetrafluoroborate is an organometallic compound with the formula [Fe(C 5 H 5) 2]BF 4.This salt is composed of the cation [Fe(C 5 H 5) 2] + and the tetrafluoroborate anion (BF −
Triethyloxonium tetrafluoroborate is the organic oxonium compound with the formula [(CH 3 CH 2) 3 O] + [BF 4] −.It is often called Meerwein's reagent or Meerwein's salt after its discoverer Hans Meerwein.
Although BF 4 − has high ionic mobility, solutions of its Li + salt are less conductive than other less associated salts. [2] As an electrolyte in lithium-ion batteries, LiBF 4 offers some advantages relative to the more common LiPF 6.
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The acidity of fluoroboric acid is complicated by the fact that its name refers to a range of different compounds, e.g. [H(CH 3 CH 2) 2 O] + [BF 4] − (dimethyloxonium tetrafluoroborate), [H 3 O] + [BF 4] − (oxonium tetrafluoroborate), and HF·BF 3 (hydrogen fluoride-boron trifluoride 1:1 adduct) – each with a different acidity.