3′-diaminobenzidine_Kain Industrial Additive

background and overview[1][2] the selenium reagent is abbreviated as dab, and its scientific name is 3,3′-diaminobenzidine. it reacts with se (w) in an acidic medium to form a yellow stem. dab is an alkali that darkens quickly in the air. its hydrochloric acid salt is a white needle-shaped substance, soluble in water, and its aqueous…