FIELD: organic synthesis.
SUBSTANCE: invention relates to technology of preparing pyridinium hexafluorophosphate, which is convenient intermediate for synthesis of lithium hexafluorophosphate used as ionic electrolyte component for lithium chemical power sources. Pyridinium hexafluorophosphate is prepared via reaction phosphorus pentachloride with fluorination agent such as ammonium hydrodifluoride followed by treatment of resulting intermediate with pyridinium salt solution.
EFFECT: avoided use of dangerous and inconvenient liquid anhydrous hydrogen fluoride and use of extreme temperature parameters.
2 ex
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