PMDA

• Category :

  Other Chemicals

• Synonyms :

  Pyromellitic dianhydride;1,2,4,5-Benzenetetracarboxylic dianhydride;benzene-1,2:4,5-tetracarboxylic dianhydride;PMDA;1H,3H-benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone;Pyromellitic Dianhydride;

• CAS NO :

  89-32-7

• EC NO :

  201-898-9

• Molecular Formula :

  C₁₀H₂O₆

• Molecular Weight :

  218.1193

• Main Specifications :

  99%

• Packing :

  20KG DRUM/BAG

• Product description :

  1.STRUCTURAL:
  
  2.PHYSICO-CHEMICAL PROPERTIES:
  White powdery matter, M.P.286, relative density is 1.68(28), boiling point is 397.4
  3.Application:for producing polyimide resin, powdery paint, delustering agent, electric insulant. It is also designed to produce epoxide resin fixative and plasticizer, urea resin stabilizator, blue pathalocyanine dye and so on.
  
  4. QUALITY OF PRODUCTS:
  gb/t19001--2000 idt ISO 9001:2000 standard

  GRANULAR PMDA
  melting point	284oC~287oC
  Content:	≥99.6%
  Neutralization cquivalem	54.5? 2
  Particie:	90% <150μm

  
  ULTRAFINE PMDA

  Meiting Point:	284oC~287oC
  Contect:	≥99.6%
  Neutralization equivalent:	54.5 ?.2
  Partlcie:	99%<10μm

  
  BOPI GRADE PMDA
  

  Meiting Point:	285oC~287oC
  Contect:	≥99.6%
  Neutralization equivalent:	54.5 ?.2 Metal free
  Particle:	smaller than 150μm<20% ??bigger than 85μm<2%

  
  5.PACKING AND RESERVATION
  External Package is plastic barrel or Fiber Drum (or use iron barrel according to customer's request), 20-200kg/barrel. Internal Package is polyethylene cuticle bag, Store in shady and dry place,and keep off heart source.

• Uses :

  Used for producing Extinction curing agent, Polyimide resin, High-temperature electric insulation paint, Solid lubricant, Phenalkamine Epoxy Curing Agent, Plasticizer, Cross linking agent, and so on.

• Molecular Structure :