C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
148/20
C23C 22/30 (2006.01) C23C 22/08 (2006.01) C23C 22/58 (2006.01)
Patent
CA 1261716
ABSTRACT OF THE DISCLOSURE A method for passivating lead and lead-containing surfaces comprising contacting the surfaces with an acidic aqueous solution containing trivalent chromium ions present in a passivation effective amount, under passivation effective conditions.
486844
Opitz Reinhard
Portz Heinz
Gerhard Collardin G.m.b.h.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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