To oxidate HF to F2 with chemicals only

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SUMMARY

The discussion centers on the oxidation of hydrofluoric acid (HF) to fluorine gas (F2) using only chemical oxidizing agents, without the need for electrolytic cells or electric energy. Karl Christe's 1986 synthesis is highlighted, which involves the abstraction of two fluoride ions (F-) from manganese hexafluoride (MnF62-) using antimony pentafluoride (SbF5). This process leads to the formation of manganese tetrafluoride (MnF4), which is thermodynamically unstable and decomposes into stable manganese trifluoride (MnF3) and F2 gas.

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  • Knowledge of manganese fluorides, specifically MnF62- and MnF4
  • Basic grasp of thermodynamic stability in chemical reactions
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  • Research the detailed mechanisms of Karl Christe's 1986 synthesis of F2 from HF
  • Study the properties and reactions of manganese fluorides, particularly MnF4 and MnF3
  • Explore the role of antimony pentafluoride (SbF5) as a fluorophile in oxidation reactions
  • Investigate alternative methods for producing fluorine gas without electrolysis
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Is it possible to oxidate HF to F2 putting HF in contact with oxidizing compounds only, that is, without using electrolytic cells or, however, electric energy in general?
Thank you.
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Karl Christe famously did this in 1986:

http://pubs.acs.org/doi/abs/10.1021/ic00241a001

His synthesis involves abstraction of two F- anions from MnF62- using two equivalents of the "fluorophile" SbF5. The stroke of genius here is that Christe recognized that MnF4 is thermodynamically unstable and decomposes into the stable MnF3 and F2 gas.
 
TeethWhitener said:
Karl Christe famously did this in 1986:

http://pubs.acs.org/doi/abs/10.1021/ic00241a001

His synthesis involves abstraction of two F- anions from MnF62- using two equivalents of the "fluorophile" SbF5. The stroke of genius here is that Christe recognized that MnF4 is thermodynamically unstable and decomposes into the stable MnF3 and F2 gas.
Thanks.
Which is the exact reaction involving the oxidation of HF?

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lightarrow said:
Which is the exact reaction involving the oxidation of HF?

Reactions 3,4 and 5 from the article
 
Note: in multi step processes sometimes its is impossible to pinpoint the moment when "something" happens, even when it is obvious from the overall reaction this "something" is what is done during the process.
 
willem2 said:
Reactions 3,4 and 5 from the article
Unfortunately I haven't access to that document. Would you please write them here?

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You should at least see the first ppage of this article which contains all the formulas.
 
DrDu said:
You should at least see the first ppage of this article which contains all the formulas.
Yes, I can see it now, with the PC. With the smartphone I can't, don't know why.

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