- Puyang Zhongde Petroleum Resins Co.,Ltd > Trade Leads > Organic Chemical Materials
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Pyromellitic Dianhydride 2008-07-04
Pyromellitic Dianhydride (PMDA) used in making Polyimide resins, eletricity insulated paint forhigh temperature, PVC Plasticizer, synthetic resin Crosslinker,making Phthalocyanine Character white farina, white or light yellow rime Melting point 286（284---287） Boiling point 384（397---400 Comparatively density 1.680 Acid number 1026---1029 Saponification number 1026---1029
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