Etch bleaching liquid with iron(III)ions

Details Etch bleaching liquid with iron(III)ions Etch bleaching liquid with iron(III)ions

1978-06-01

1980-05-20

Kimlin, Edward C.

Radiation imagery chemistry: process, composition, or product th

Transfer procedure between image and image layer, image...

Image layer portion transfer and element therefor

252186, 252399, 423272, 430204, 430302, 430418, 430430, G03C 700, G03C 532

Patent

active

042037654

ABSTRACT:
An aqueous acidic etch-bleach solution comprising hydrogen peroxide, iron(III)ions and inorganic anions that form a silver salt having a solubility product not greater than 1.times.10.sup.-8 determined in water at 20.degree. C., characterized in that such solution contains in the dissolved state the combination of citric acid and a polymer containing alkylene oxide units for improved stabilization of the hydrogen peroxide.

REFERENCES:
patent: 3194768 (1965-07-01), Lindner et al.
patent: 3877938 (1975-04-01), Shinozaki et al.
patent: 3933982 (1976-01-01), Kushibe
patent: 3960565 (1976-06-01), Fisch et al.
patent: 4022703 (1977-05-01), Bakes et al.

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