Technical Data Sheet

Pyromellitic Dianhydride(PMDA)

Molecular formula:            C₁₀H₂O₆

Molecular weight:             218.12

CAS No.:                    89-32-7

Molecular structure:

Appearance:                        white powder

Density :                             1.68

Content :                            ≥99.50%

Melting range:                       284-288℃

Boiling Point :                        397-400℃

Neutralization equivalent :             54.5(±0.2)

Volatile Fraction wt  :                　≤0.5%

Purposes:

This product is   main component of high temperature insulating materials and is used to produce polyimide film, resin and insulating materials, as well as high temperature curing agent, delustering agent,plasticizing agent, ethoxyline curing agent, powder dope, antisepsis dope, high efficiency desulfurization catalyst, polyimide film, high temperature resistant insulating paint, delustering curing agent, high temperature resistant bond and polyimide film plastic.

Packing:

Plastic bag is lined inside, high-intensity composite paper bag is covered outside. Every packaging bag is 25kg. Moisture and rain should be prevented in the process of storage and transportation.

PMA ,PMDA ,B31,M68 ,XL-552....