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Pyromellitic Dianhydride/CAS:89-32-7
Chemical Name: Pyromellitic Dianhydride
Molecular Formula: C10H2O6
Formula Weight: 218.12
CAS No.: 89-32-7
Category: Dissolvant
PHYSICO-CHEMICAL PROPERTIES:
White powdery matter, M.P.286, relative density is 1.68(28), boiling point is 397.4
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.
QUALITY OF PRODUCTS:
|
GRANULAR PMDA |
|
|
melting point |
284oC~287oC |
|
Content: |
≥99.6% |
|
Neutralization cquivalem |
54.5±0 2 |
|
Particie: |
90% <150μm |
ULTRAFINE PMDA
|
Meiting Point: |
284oC~287oC |
|
Contect: |
≥99.6% |
|
Neutralization equivalent: |
54.5 ±0.2 |
|
Partlcie: |
99%<10μm |
BOPI GRADE PMDA
|
Meiting Point: |
285oC~287oC |
|
Contect: |
≥99.6% |
|
Neutralization equivalent: |
54.5 ±0.2 Metal free |
|
Particle: |
smaller than 150μm<20% bigger than 85μm<2% |
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.
Other Products:2,4,6 tribromophenol/CAS:118-79-6