The pyromellitic dianhydride has particle properties not causing plugging, etc. during its transportation, storage and use.
该均苯四甲酸二酐具有在运输、储存和使用期间不会引起堵塞等的粒子性 质。
3
Transitional metal complexes of pyromellitic acid were synthesized by homogeneous precipitation method, and characterized by TG, element analysis and FTIR.