Phthalic anhydride yog ib qho tseem ceeb ntawm cov tshuaj siv los tsim ntau yam khoom, xws li plasticizers, dyes, thiab resins. Nyob rau hauv xyoo tas los no, tau muaj kev txaus siab rau kev nkag siab cov ntaub ntawv tshiab ntawm phthalic anhydride, suav nrog nws cov khoom tsim, kev siv, thiab poten ...
Nyeem ntxiv