Purification of photographic image-forming sulfonamido compounds

Details Purification of photographic image-forming sulfonamido compounds Purification of photographic image-forming sulfonamido compounds

1979-02-28

1980-10-14

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260198, 260199, 260202, 260207, 260208, C09B 4600

Patent

active

042280702

ABSTRACT:
A process for purifying a photographic image-forming sulfonamido compound comprises the steps of:

REFERENCES:
patent: 2564225 (1951-08-01), Mayers
patent: 2983608 (1961-05-01), Beavers
patent: 3236643 (1966-02-01), Haseu
patent: 3575957 (1971-04-01), Demler et al.
patent: 3932380 (1976-01-01), Urutak et al.
patent: 4013633 (1977-03-01), Haase et al.
patent: 4142891 (1979-03-01), Baigrie et al.

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