Platinum electroforming bath

Details Platinum electroforming bath Platinum electroforming bath

1994-05-04

1996-08-27

Niebling, John

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

205264, C25D 352

Patent

active

055497381

ABSTRACT:
The invention relates to platinum electroforming and platinum electroplating capable of preparing a deposited platinum material having high hardness and increased thickness and size. The platinum electroforming or electroplating bath comprises at least one compound selected from the group consisting of chloroplatinic acid, chloroplatinates of alkali metals, hydrogen hexahydroxoplatinate, and hexahydroxoplatinates of alkali metals, 2-100 g/l as platinum and a hydroxylated alkali metal, 20-100 g/l.

REFERENCES:
patent: 1901531 (1933-03-01), Powell et al.
Davies et al, "Platinum Plating from Alkaline Solutions", Intern. Electrodep. Conf., 1937, advance copy.
Indira et al, "Addition Agent for Platinum Plating", Metal Finishing, May 1969, pp. 44-49.

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