Ee e: 89-32-7 PMDA Pyromellitic Dianahydride
Okwu Mmeghachi
Pyromellatic Diahydride (PMDA), ngwaahịa dị ọcha na-acha ọcha ma ọ bụ kristal edo edo edo edo edo edo edo. Igwe ikuku na-ekpughe ikuku na-enweta ngwa ngwa site na ikuku na hdrolellyzed n'ime pyromelved na somethyl sọmfoxide, acetoneanf na ndò nke ether, na-egbochi ether, chloroformard Benzene. Nke kachasị eji dị ka ihe dị mma maka Polylimide, na-ebe nchekwa maka imepụta epoxy cingje na mkpokọta na mkpochapu polythester resing.
A na-ejikarị polyplacid, PRAMELELCALICE 1,2,5,5 na-acha odo odo na-acha odo odo, wdg, bụ isi nke na-emepụta ihe .
| Ihe | PMDA | PMA |
| Ịdị ọcha wt% | 99.5% | 99% |
| Actone ppm | 1500 | / |
| Na-agbaze | 284 ~ 288 | / |
| Agba | Acha ọcha na-acha odo odo | Ucha |
| Acid wt% | 0.5 | / |
| Urughuru | Na Ahịa Ahịa | Na Ahịa Ahịa |
Pls Kpọtụrụ anyị ka anyị nweta Coa na MSDs. Daalụ.
Dee ozi gị ebe a ma zigara anyị ya
