Articles electrodeposited with ruthenium and processes of produc

Details Articles electrodeposited with ruthenium and processes of produc Articles electrodeposited with ruthenium and processes of produc

1976-12-03

1978-04-04

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

423463, C25D 350, C01B 902

Patent

active

040826244

ABSTRACT:
The ruthenium compound [Ru.sub.2 N(H.sub.2 O).sub.2 Cl.sub.8 ]K.sub.3 is prepared by refluxing a mixture of hydrated water soluble ruthenium chloride, having approximately 40% ruthenium content, and sulphamic acid, the latter having approximately half the molar concentration of the former, for several hours and then precipitating the desired compound by adding solutions of potassium chloride and hydrochloric acid. Electrical contacts on the reeds of sealed reed switches produced by electroplating from an aqueous solution of the salt produced in this manner are found to be particularly resistant to the thermal shock involved in the sealing of the switches.

REFERENCES:
patent: 3576724 (1971-04-01), Reddy et al.
patent: 3625840 (1971-12-01), Mason et al.
patent: 3793162 (1974-02-01), Hope
Research Disclosure, No. 112, p. 8, Aug. 1973.

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