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Cas nambala: 89-32-7 PMDA Pyromellitic dianhydride

Cas nambala: 89-32-7 PMDA Pyromellitic dianhydride

Kufotokozera Kwachidule:

Pyromellitic dianhydride (PMDA), zopangira zoyera ndi makhiristo oyera kapena achikasu pang'ono.Kuwonetsedwa ndi mpweya wonyowa kumapangitsa kuti mpweya ukhale wonyowa kwambiri komanso wothira hydrolyzed kukhala Pyromellitic Acid.Amagwiritsidwa ntchito makamaka ngati zopangira za polyimide, ndi crosslinking agent popanga epoxy machiritso ndi kutha kwa utomoni wa polyester.


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Chiyambi chachidule

Pyromellitic dianhydride (PMDA), zopangira zoyera ndi makhiristo oyera kapena achikasu pang'ono.Kuwonetsedwa ndi mpweya wonyowa kumapangitsa kuti mpweya ukhale wonyowa kwambiri komanso wothira hydrolyzed kukhala Pyromellitic Acid.Amagwiritsidwa ntchito makamaka ngati zopangira za polyimide, ndi crosslinking agent popanga epoxy machiritso ndi kutha kwa utomoni wa polyester.

Pyromellitic acid(PMA), yomwe imadziwikanso kuti 1,2,4,5-benzenetetracarboxylicacid, yoyera mpaka chikasu cha ufa wa kristalo, imagwiritsidwa ntchito makamaka popanga polyimide, octyl pyromelliate, ndi zina zambiri, ndiye chopangira chachikulu chopangira machiritso. .

ITEM PMDA PMA
Purity wt% 99.5% 99%
Otsalira Acetone PPM 1500 /
Malo osungunuka 284-288 /
Mtundu Choyera mpaka chikasu Choyera
Free Acid wt% 0.5 /
Kukula kwa tinthu ting'onoting'ono Pa zofuna za makasitomala Pa zofuna za makasitomala

 

Kufotokozera

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