| >>> Sell Pyromellitic Dianhydride (PMDA) used in makin
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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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| 发布企业:Puyang Zhongde Petroleum Resins Co.,Ltd
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