Platinic Chloride
Title: Platinic Chloride
CAS Registry Number: 16941-12-1
CAS Name: Hydrogen hexachloroplatinate(IV)
Additional Names: acid platinic chloride; hexachloroplatinic(IV) acid; chloroplatinic acid
Molecular Formula: Cl6H2Pt
Molecular Weight: 409.82
Percent Composition: Cl 51.91%, H 0.49%, Pt 47.60%
Line Formula: H2PtCl6
Literature References: Exists as hexahydrate.
Properties: Hexahydrate, brownish-yellow, very deliquesc, cryst mass. d 2.431; mp 60°. Easily sol in water, alcohol. Keep tightly closed, protected from light.
Melting point: mp 60°
Density: d 2.431
CAUTION: May cause asthma or dermatitis, E. Browning, Toxicity of Industrial Metals (Appleton-Century-Crofts, New York, 2nd ed., 1969) pp 270-275.
Use: In platinum plating, photography, platinum mirrors, platinum luster on glass and porcelain, platinized carbon for acetic acid manuf; platinizing pumice stone or asbestos, as catalyst in manuf of SO3; indelible ink; relief etching of zinc for artistic and commercial purposes; fixing microscopic prepns, etc.

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