Platinocyanide

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A platinocyanide is a salt containing the anion [Pt(CN)4]2−. Barium platinocyanide, Ba[Pt(CN)4], was important in the discovery of X-rays, and in the development of the fluoroscope. One platinocyanide salt with interesting conductive properties is Krogmann's salt, used in cathode ray tube televisions as the fluorescent material.