Iridium compound and preparation thereof

Details Iridium compound and preparation thereof Iridium compound and preparation thereof

1978-07-14

1979-11-13

Thomas, Earl C.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Oxygen containing

423387, 204 47, C01B 2100, C01G 5500

Patent

active

041743784

ABSTRACT:
Iridium compounds are produced by refluxing a diammonium hexahalo salt of iridium and sulfamic acid in an aqueous medium for more than thirty hours. When the diammonium hexachloro salt of iridium is used, the iridium product is an olive green salt having a melting point above 350.degree. C. The iridium products are useful as constituents of electroplating baths.

REFERENCES:
patent: 1077920 (1913-11-01), Stevens
patent: 3554881 (1971-01-01), Piontelli et al.
patent: 3639219 (1972-02-01), Skomoroski
Chemical Abstracts, vol. 72, p. 17792u (1970).
Fischer et al., "Precious Metal Plating", Robt. Draper, Ltd., Teddington, 1964.
MacNamara, "The Electrodeposition of Iridium", J. Electrochemical Society, vol. 109(1), pp. 61-63 (1962).
Conn, "Iridium Plating", Plating Proceedings, pp. 1258-1251, (1965).
Mazza et al., "Plating with Precious Metals from Sulfanoate Containing Baths", Electrochim Metal, vol. 1, (4), pp. 405-408, 482 (1966).
Reddy, "Electrodeposition of Ruthenium", Trans. Inst. Med. Finishing, vol. 47, pp. 187-193 (1966).

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