Manomay Shravage
0

1. Silver bromide (AgBr), hydroquinone(C6H4(OH)2)-decorated dyes cyan, yellow, magenta, dark blue dye or dark room dye, potassium thiosulfate (K2O3S2) , developing dye potassium hydroxide (HKO) ...

2. HydroquinoneC6H4(OH)2)

3. Potassium thiosulfate (K2O3S2)