Phthalic anhydride ndi mankhwala ofunikira omwe amagwiritsidwa ntchito popanga zinthu zosiyanasiyana, monga mapulasitiki, utoto, ndi utomoni. M'zaka zaposachedwa, pakhala chidwi chofuna kumvetsetsa zaposachedwa kwambiri za phthalic anhydride, kuphatikiza kupanga, kugwiritsa ntchito, ndi poten ...
Werengani zambiri