potassium tetrachloroplatinate
Potassium tetrachloroplatinate(II) is the chemical compound with the formula K2PtCl4.

This reddish orange salt is an important reagent for the preparation of other coordination complexes of platinum. It consists of potassium cations and the square planar dianion PtCl42−.
It is a raw material for the synthesis of Pt-based drugs such as cis-platin.
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