PPDA is a white to light purple red crystaltại f8bet, It is the simplest aromatic diamine. Its alkalinity is weaker than ammonia, slightly stronger than aniline, and it is easily to be oxidized. The reaction of PPDA is mainly involves the reaction of amino groups, and the reaction of benzene rings

CHDA (Cyclohexane-1tin tức bóng đá,4-diamine，cis/trans Mixture) is a kind of aliphatic diamine, which is a colorless or yellow solid-liquid mixture at room temperature