Trithiocarbonates as sensitizers for silver halide emulsions

Details Trithiocarbonates as sensitizers for silver halide emulsions Trithiocarbonates as sensitizers for silver halide emulsions

1976-12-21

1978-01-10

Louie, Jr., Won H.

Gas separation: apparatus

Chromatography type apparatus

Having imbedded baffle or flow distributor

G03C 128

Patent

active

040677400

ABSTRACT:
Photographic colloid-silver halide emulsions are chemically sensitized by the addition prior to or during digestion of at least one trithiocarbonate compound of the general formula: ##STR1## wherein R is a tertiary alkyl radical having from 4 to 16 carbon atoms and R' may be the same as R or an aryl or an alphyl radical containing 1 to 3 aryl groups which may be substituted or unsubstituted.

REFERENCES:
patent: 1678832 (1968-07-01), Sheppard
J. Org. Chem. 26 pp. 4047-4051 (1961).

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