Process for preparing metal salts, photographic materials...

Details Process for preparing metal salts, photographic materials... Process for preparing metal salts, photographic materials...

C - Chemistry, Metallurgy

01

G

23/149

C01G 5/02 (2006.01) C01B 9/00 (2006.01) G03C 1/015 (2006.01)

Patent

CA 1151839

ABSTRACT OF THE DISCLOSURE Metal salts which are sparingly soluble, in particular silver halides, are prepared by mixing at least one solution A which contains at least one cation of the metal salt, with at least one solution B which contains at least one anion of the metal salt, by running at least one of these solutions into a reaction vessel where solutions A and B are mixed, characterised in that this solution is run in for at least part of the precipitation process in such a way that the concentration of the inflowing solution continuously changes. The invention provides for a short precipitation time and makes it possible to work in concentrated solutions.

352616

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