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Platinum Tetrafluoride, PtF4

Platinum Tetrafluoride, Platinic Fluoride, PtF4, obtained by passage of fluorine over platinum wire heated to 500° or 600° C., contained in a thick platinum or fluorspar tube,3 is deep red when fused, but yields yellow crystals. These are very hygroscopic, and dissolve in water with considerable heat evolution.

The aqueous solution of this salt is fawn-coloured and unstable, readily decomposing into hydrofluoric acid and a hydrated oxide of platinum.

At red heat platinic fluoride dissociates, evolving fluorine, a residue of crystalline platinum remaining.

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