7526. Platinic Chloride

Nomenclature

CAS number: 16941-12-1
Hydrogen (OC-6-11)-hexachloroplatinate(2-) (2:1); hydrogen hexachloroplatinate(IV); acid platinic chloride; hexachloroplatinic(IV) acid; chloroplatinic acid.
Cl6H2Pt; mol wt 409.82.
Cl 51.91%, H 0.49%, Pt 47.60%.
H2PtCl6.

Description and references

Exists as hexahydrate.

Derivative

Hexahydrate.
Cl6H2Pt.6H2O; mol wt 517.91.
Cl 41.07%, H 2.72%, Pt 37.67%, O 18.54%.

Properties

Brownish-yellow, very deliquesc, cryst mass. d 2.431; mp 60°. Easily sol in water, alcohol. Corrosive. Keep tightly closed, protected from light.

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.