Synonym. - Platina Muriatica.

Present name. - Platinic Chloride. PtCl4.

Perchloride of Platinum.

May be obtained pure from the operative chemists.

Characters and Tests. - Dark orange-yellow prismatic crystals, very deliquescent and also readily soluble in alcohol and ether. In water it forms a deep orange-coloured solution, a drop of which, when stirred on a slip of glass with a drop of a moderately strong solution of Nitrate of Potash, will give a well-marked yellow precipitate. It also gives a granular yellow precipitate with Chloride of Ammonium. The solution becomes bright red on the addition of Proto-chloride of Tin.

Reference to Horn. Proving. - A brief notice in Noack and Trinks.

Preparation. - Solution in rectified spirit.