Cas no:89-32-7 PMDA Pyromellitica dianhydride

Breves

Pyromellitica dianhydride (PMDA), producta pura crystallis albis orslightly flavis.Aeri humido exposita cito absorbmoistura ex aere et hydrolyzata in acido pyromellitico. Solvitur in sulfoxide, dimethylformamide, acetone et aliis solventibus organicis, in aethere, chloroformando benzene insolubili.Maxime usus est ut materia rudis polyimide, et crosslinking agens ad fabricandum epoxy curationis agentis et resinae polyester extinctionis.

Acidum pyromelliticum (PMA), notum etiam ut 1,2,4,5-benzenetetracarboxylicacidum, album ad crystallum pulverosum luteum, maxime adhibetur in thesynthesi polyimidis, octyli pyromelliatis, etc. .