反应详情

The photographic element of claim 10 comprising a silver chloride emulsion layer incorporating a silver halide developing agent which is 2,5-bis-(methylamino)-1,3,4-thiadiazole; 2-methylamino-5-ethylamino-1,3,4,thiadiazole; 2-(2-ethoxyethylamino)-5-methylamino-1,3,4-thiadiazole; 2,5-bis(2-methoxyethylamino)-1,3,4-thiadiazole; 2-(2-ethoxyethylamino)-5-(2-methoxyethylamino)-1,3,4-thiadiazole; 2-(2-methoxyethylamino)-5-phenylamino-1,3,4-thiadiazole; 2-(p-methoxyphenylamino)-5-(2-methoxyethylamino)-1,3,4-thiadiazole; or