Disulfonyl silver halide solvents substituted with piperazine at

Details Disulfonyl silver halide solvents substituted with piperazine at Disulfonyl silver halide solvents substituted with piperazine at

1976-07-19

1977-09-06

Klein, David

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 61R, 96 61M, 96 76R, 96 76C, 96 77, G03C 554, G03C 538, G03C 148, G03C 140

Patent

active

040465683

ABSTRACT:
Alkanes containing an intralinear sulfonyl group and an intralinear 1-piperazinylsulfonamido group separated by a single carbon substituted with at least one hydrogen atom are employed as silver halide solvents in photographic processes and compositions.

REFERENCES:
patent: 3169992 (1965-02-01), Henn
patent: 3769014 (1973-10-01), Stewart et al.
patent: 3976647 (1976-08-01), Greenwald

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