Nambala ya mlandu: 89-32-7 PMDA Pyromellic dianhydride
Chiyambi chachidule
Pyromellitic dianhydride (PMDA), zinthu zoyera ndi zoyera kapena zachikasu pang'ono. Zikayikidwa mumlengalenga wonyowa zimayamwa chinyezi kuchokera mumlengalenga mwachangu ndikusungunuka kukhala Pyromellitic Acid. Zimasungunuka mu dimethyl sulfoxide, dimethylformamide, acetone ndi zinthu zina zachilengedwe, sizisungunuka mu ether, chloroform ndi benzene. Zimagwiritsidwa ntchito makamaka ngati zopangira polyimide, komanso ngati cholumikizira chopangira epoxy curing agent komanso kutha kwa polyester resin.
Pyromellitic acid (PMA), yomwe imadziwikanso kuti 1,2,4,5-benzenetetracarboxylicacid, kristalo woyera mpaka wachikasu ngati ufa, imagwiritsidwa ntchito kwambiri popanga polyimide, octyl pyromelliate, ndi zina zotero, ndiye chinthu chachikulu chomwe chimagwiritsidwa ntchito popanga mankhwala ochiritsira matte.
| CHINTHU | PMDA | PMA |
| Kuchuluka kwa chiyero% | 99.5% | 99% |
| Acetone yotsala PPM | 1500 | / |
| Malo osungunuka | 284~288 | / |
| Mtundu | Kuyera mpaka chikasu | Choyera |
| Kuchuluka kwa asidi kwaulere% | 0.5 | / |
| Kukula kwa tinthu | Pakafunidwa ndi makasitomala | Pakafunidwa ndi makasitomala |
Chonde titumizireni uthenga kuti mupeze COA ndi MSDS. Zikomo.
