Changshu Alliance Chemical Co., Ltd.
GF-S Series Aromatic Solvent
1,2,4,5-Tetramethylbenzene (Durene)
Pyromellitic Acid (PMA)
Pyromellitic Dianhydride (PMDA)
Methylnaphthalene
 
Pyromellitic Dianhydride (PMDA)
Pyromellitic Dianhydride (PMDA)
Molecualr formula: C10H2O6
Structural formula :
CAS: 89-32-7
4.1 Quality index:

Item

Value

Appearance

white or light yellow crystal granule

M.P. oC≥

286

Purity %≥

99

Neutralization equivalent

54.5±0.2

Grain size≤

1mm(80% bigger than 0.08mm)

4.2 Usage:
4.2.1 Used as material for polyamide, polyimide film, polyimide resin, high
temperature-resistant electrical insulating enamel as well as high
temperature-resistant coatings;
4.2.2 Utilized as the curing agent of epoxy resin, the stabilizer of bakelite
and the auxiliary agent of powder coating.
4.3 Cautions:
4.3.1 Used in well airy place;
4.3.2 Handled with safety supplies such as rubber gloves, goggles and
respirator;
4.3.3 Kept away from sources of ignition, water and moisture.
4.4 Packing & Storage & Transportation:
4.4.1 Net weight 20kg in aluminum foil bags filled with nitrogen gas, and
then wrapped with paper bags; or
4.4.2 Net weight 120kg in aluminum foil bags filled with nitrogen gas, and
then wrapped in cardboard drum; or according to customers’
requirements.
4.4.3 Stored in dry and airy places;
4.4.4 Loaded and unloaded gently to avoid damaging the package;
4.4.5 Stored and transported by laws and regulations about hazardous
chemicals.
 
     
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广东时时彩11玩法介绍