C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
52/51
C23C 18/44 (2006.01) C09K 15/06 (2006.01)
Patent
CA 1097082
ABSTRACT OF THE INVENTION Potentially explosive mixtures which can form as a result of accidental contact between a concentrated aqueous solution of ammoniacal silver salt and a concen- trated solution of a strong alkali are inhibited in an improved multi-part system for electroless deposition of silver on an activated surface by simultaneous admix- ture of the diluted parts thereupon. Accordingly, an improved method for inhibiting formation of explosive conditions and compounds in a mixture formed by contact- ing concentrated aqueous ammoniacal silver salt and a concentrated solution of alkali is provided, whereby an effective amount of an explosion inhibitor is provided either in combination with the ammoniacal silver salt, in which case sufficient extraneous ammonium ions are provided to stabilize the explosion inhibitor, or in the strong alkali, or a portion of the explosion inhibi- tor is provided in each of said ammoniacal silver salt and strong alkali. Conventional reducers for ammoniacal silver salt can be utilized together with said explosion inhibitor.
311421
London Laboratories Limited Co.
Swabey Ogilvy Renault
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