The salt is relatively stable thermally, but loses 50% weight at 200 °C (392 °F). It hydrolyzes near 70 °C (158 °F) according to the following equation forming highly toxic HF gas: LiPF6 + 4 H2O → LiF + 5 HF + H3PO4Owing to the of the Li ions, LiPF6 also the of . In, LiPF6 reacts with Li2CO3, which may be catalysed by small amounts of HF:
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