High purity CAS 89 32 7 PMDA (Pyromellitic Dianhydride)

 The Main Manufacturer(Helishi)of Pyromellitic Dianhydride/PMDA in China

Product Name	Pyromellitic Dianhydride; PMDA; 1,2,4,5-Benzenetetracarboxylic Anhydride
CAS No.	89-32-7
EINECS No.	201-898-9
Formula	C10H2O6
Structure
Appearance	White crystal powder
Melting point	286-288 °C
Free acid content	0.5% max
Assay	99.80% min
Application	Used for making polyimide film, resin, powdery paint, delustering agent
Manufacturer	Shandong Helishi Petrochemical Technology Development Co., Ltd.  www.hlszjchem.com
Capacity	2,000mt/ year

Application                                                                       

Pyromellitic dianhydride (PMDA) is used to make polyimide film, polyimide resin, high

temperature resistance electric insulating paint, PVC plasticizer, synthetic resin crosslinking

agent and epoxyresin curing agent, also used to make phthalocyanine blue dye, food packaging

industry PET chain extension, etc.

Q.C.Department                                                              

Certification                                                                      

Packaging & Shipping                                                      

1. PE bag

2. Aluminum foil bag

3. 25kg/ drum

4. 135kg/ drum 

5. 450kg/ Jumbo bag

6. Carton

7. Pallet

 Our factory                                                                      

Our advantages                                                                  

1.High quality with ISO certificate.

2.High purity with 99.8% min purity.

3.We have our own factory,can control delivery time strictly.

4.Our Helishi factory have 19 year's production experience.

5. Offer good service, customer is first for us.