Palladium Chloride
Title: Palladium Chloride
CAS Registry Number: 7647-10-1
Additional Names: Palladous chloride
Molecular Formula: Cl2Pd
Molecular Weight: 177.33
Percent Composition: Cl 39.99%, Pd 60.01%
Line Formula: PdCl2
Literature References: Prepn: Krustinsons, Z. Elektrochem. 44, 537 (1938). Toxicity study: Orestano, Boll. Soc. Ital. Biol. Sper. 8, 1154 (1933). Review of PdCl2 and other halides: J. H. Canterford, R. Colton, Halides of the Second and Third Row Transition Metals (John Wiley, New York, 1968) pp 358-389.
Properties: Red crystals. mp 678-680°. Dec at high temp to palladium and chlorine. MLD i.v. in rabbits: 0.0186 g/kg (Orestano).
Melting point: mp 678-680°
Toxicity data: MLD i.v. in rabbits: 0.0186 g/kg (Orestano)
 
Derivative Type: Dihydrate
Properties: Dark brown crystals. Sol in water, alcohol, acetone. Reduced in soln by hydrogen or CO to metal. Keep tightly closed.
 
Use: In photography, for preparing pictures to be transferred to porcelain; toning solutions; electroplating parts of clocks and watches; manuf indelible ink; for the prepn of the metal for use as a catalyst; PdCl2 paper is used for detecting CO, to find leaks in buried gas pipes. Prepn of palladium catalysts using PdCl2: Mozingo, Org. Synth. coll. vol. III, 685 (1955).

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