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PMDA Pyromellitic Dianhydride

Inquiry
  Post Date: Nov 10,2014
  Expiry Date: May 09,2015
  Detailed Description: Cas No. :89-32-7 Quantity: 5Metric Tons
Payment Method: L/C,T/T
PMDA

Molecular formula C10H2O6
Molecular weight 218.12
CAS NO. 89-32-7
UN NO. /
CN NO. /
EINECS. 201-898-9
Chemical name Pyromellitic Dianhydride


Prepared By ICASON PM REVISION：2011
Approved By PRODUCTION SPECIFICATION
Valid From：2011-9-10


Brief Introduction：
PMDA is white crystal. Its gravity is 1.68.It can be dissolved in organic solvents such as acetone and dimethylacetamide.
The main applications of PMDA is to produce polyimide resin and Bi-oriented polyimide sheets, gloss retaining and curing agent for powder coating, high temperature-resistant electrical insulating enamel, solid lubricant,curing agent for epoxy resin, plasticizer and cross linking agents for polyester resins etc.

Specification：

Test Item Limit
Assay Min.60%
Neutralization Cquivalem 54.5±0 2
Particle Size Max.0.0003%

Package and Storage：
Internal Package is polyethylene cuticle bag,External Package is Fiber Drum,Net weight: 20kgs.(it can also be packed according to customers' requirement)
Keep in dry and well ventilated place, protected from moisture.

  CAS Registry Number:

89-32-7
  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;
  Molecular Formula: C10H2O6
  Molecular Weight: 218.1193
  Molecular Structure: 89-32-7 1,2,4,5-Benzenetetracarboxylic anhydride
  Hazard Symbols:  Xn:Harmful;
  Risk Codes: R41:;
R42/43:;
  Safety Description: S22:;
S24:;
S26:;
S37/39:;

  Company: Tianjin Icason Technology Co., Ltd     [ China ]        
  Contact: Benson Han
  Tel: +86-22-60938150
  Fax: +86-22-25621236
  Email: icason003@icason.com
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