Salt compound comprised of a ferricyanide anion and a protonated

Details Salt compound comprised of a ferricyanide anion and a protonated Salt compound comprised of a ferricyanide anion and a protonated

1977-11-07

1980-05-27

Daus, Donald G.

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Bleach or intensification

96 33, 96 29L, 260439R, 546 8, 548107, 252186, 430204, 430251, 430494, C07F 1502

Patent

active

042048680

ABSTRACT:
A photolithographic plate, method for preparation thereof, and salt compound useful in the preparation, the method involving the treatment of a metallic silver image on a substrate with a homogeneously stable acidic aqueous salt solution comprising a ferricyanide anion for oxidizing the metallic silver and an organic cation capable of forming a water-insoluble, inherently oleophilic complex with oxidized silver, the cation being derived from a protonatable nitrogen-substituted hydrocarbon compound containing a formal imine group therein which is in resonant association with adjacent groups within the hydrocarbon compound.

REFERENCES:
patent: 2165166 (1939-07-01), Ham
patent: 2229891 (1941-01-01), Ham
patent: 2268508 (1941-12-01), Ham
patent: 2286330 (1942-06-01), Barnes
patent: 2293025 (1942-08-01), Barnes
patent: 3083097 (1963-03-01), Lassig et al.
Cumming, "Ferrocyanides and Ferricyanides of Organic Bases," Chemical Abstracts, vol. 18, p. 2230 (1924).
Cumming, "Hydroferrocyanides and Hydroferricyanides of the Organic Bases," Chemical Abstracts, vol. 19, pp. 977-988 (1925).

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