Platinum chloride

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Brown powder. Platinum chloride is formed in conjunction with Chloroplatinic acid by dissolving Platinum in Aqua regia. Although separate compounds, the name platinum chloride has been used commercially for both materials. Chloroplatinic acid is the most commonly used of the two materials. It is used to make platinum photographic prints, indelible ink, and mirrors. It is also used for platinizing glass, porcelain, and pumice stone.

Chemical structure

Platinum chloride.jpg

Synonyms and Related Terms

platinum tetrachloride; platinic chloride; platinum (III) chloride


  • Inhalation and skin contact causes irritation and allergic reactions.
  • Fisher Scientific: MSDS

Physical and Chemical Properties

Soluble in water, ethanol.

Composition PtCl4
CAS 10025-65-7
Molecular Weight mol. wt. = 266.0

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979