Lub melting point ntawm pyromellitic dianhydride (PMDA) yog li ntawm 284 degree mus rau 288 degree, thaum nws boiling point yog 397 degree mus rau 400 degree, thiab nws cov txheeb ze ceev yog 1.680.
Dec 10, 2024
Lub melting point ntawm PMDA yog dab tsi?
Xa kev nug