Conclusions
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1.
The reaction of tetrafluoroethylene with pyrosulfuric acid leads to the quantitative formation of analytically-pure fluorosulfonic acid.
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2.
The reaction of difluoroacetic acid with sulfur trioxide leads to the formation of carbon monoxide and fluorosulfonic acid.
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Additional information
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1568–1570, July, 1973.
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Belaventsev, M.A., Pavlov, V.M., Sokol'skii, G.A. et al. Fluorine-containingβ-sultones Communication 42. New method for preparation of fluorosulfonic acid. Russ Chem Bull 22, 1519–1520 (1973). https://doi.org/10.1007/BF00930052
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DOI: https://doi.org/10.1007/BF00930052