Supersensitization of silver halide emulsions

Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Silver compound sensitizer containing

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430570, 430576, G03C 102

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active

045783470

ABSTRACT:
The addition of water-soluble triaryl compounds selected from the group consisting of phosphines, amines, arsines, bismuthines and stibylidynes provides sensitizing effects and, when added to spectrally sensitized emulsions, provides a supersensitizing effect. The activity of these compounds is additive with other supersensitizers.

REFERENCES:
patent: 3644530 (1972-02-01), Bloom et al.
patent: 3695888 (1972-10-01), Hiller et al.
patent: 4003746 (1977-01-01), Bigelow
patent: 4346154 (1982-08-01), McLaen et al.
patent: 4411985 (1983-10-01), Morrow et al.
"Effect of Some Phenyl Derivatives of the Elements of the V Group of Periodic Table on the Photographic Properties of Sensitized Emulsions", (1967), M. A. Akhmedzyanov, V. I. Slesareva, M. S. Khaikin and S. A. Lerner.
"Investigation of Some Aryl Phosphines as Activators of Spectral Sensitization", (1969), M. A. Akhmedzyanov, S. A. Lerner, I. P. Sotnikova, A. S. Fakhruidinov and S. G. Fatanyants.
"The Relative Affinities of Co-ordinating Atoms for Silver Ion, Part II Nitrogen, Phosphorus, and Arsenic", Sten Ahrland, J. Chatt, N. R. Davies and A. A. Williams, Journal Chemical Society, 1958.
Chemical Abstracts, p. 410, vol. 94, 1981.

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