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The fogging by acids and oxidizing agents and the intensification of photographic latent image

✍ Scribed by E.P. Wightman

Publisher
Elsevier Science
Year
1929
Tongue
English
Weight
28 KB
Volume
207
Category
Article
ISSN
0016-0032

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✦ Synopsis

FURTHER arguments are given in support of the viewpoint of Wightman (Brit. J. Phot., 74, 447 (1927)) that the cause of latent fog formation from the action of certain oxidizing agents and acids is probably caused by the formation of bromine from the soluble bromide in the plate, with which hypothesis Lfippo-Cramer is in disagreement (Z. wiss. Phot., 25, IiI (I928); Phot. Korr., 64, 49 (1928)). The hypothesis was originally based on the fact, discovered by Lfippo-Cramer, that very dilute bromine solution causes fog and on a previously proposed mechanism of latent image intensification and fog formation by hydrogen peroxide, further evidence for which is now presented.

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