Ammonium hexaiodoplatinate(IV) is an inorganic compound with the chemical formula . It forms dark-red, cubic crystals.
Preparation Ammonium hexaiodoplatinate can be prepared by heating platinum tetraiodide or hexachloroplatinic acid in a saturated solution of ammonium iodide in the presence of hydroiodic acid and iodine.
Chemical properties The compound is unstable and decomposes in aqueous solutions:
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