Phthalic nohydride (pa) ndi chinthu chofunikira kwambiri cha ortic, makamaka chopangidwa ndi oxidation of Orthotion of Ortho-xlene kapena Naphthalene. Imawoneka ngati yoyera yoyera ndi fungo laling'ono lopatuka. PA PATU imagwiritsidwa ntchito kwambiri popanga mafayilo, ma sulterter osakhazikika, alkyd, utoto, utoto, ndikupangitsa kuti ikhale yapakatikati pamakampani ogulitsa mankhwala.
Kuti mumve zambiri kapena kupempha chitsanzo, chonde funsani gulu lathu logulitsa. Ndife odzipereka popereka zinthu zapamwamba komanso ntchito yabwino kwambiri!