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Product Name: 3,3',4,4'-benzophenonetetracarboxylic dianhydride

Abbreviated name: BTDA

Item No.: SolverPI-Monomer BTDA

 

CAS:2421-28-5

EINECS:219-348-1

Molecular formula: C17H6O7

Formula weight:322.23

Constitutional formula:

Physicochemical property:

  Melting point:220-225 °C(lit.)

  Boiling point:320°C 5mm

  Density:1,57 g/cm3

  Vapor density:1.4 (vs air)

  Vapor pressure:<0.1 mm Hg ( 0 °C)

  Flash point:324 °C

  Solubility:DMF: 0.1 g/mL, clear

  Water solubility:REACTS

  Sensitivity:Moisture Sensitive

The product index:

DETERMINATION	STANDARD?GRADE
	Excellent grade	First grade	Up to grade
Appearance	White	White or light yellow powder
Purity	=99.5%	=99.0%	=98.5%
Melting point	225.5~224.5?	222.5~224.5?	220.0~222.5?
K	=2PPm	=5PPm
Ca	=2PPm	=5PPm
Al	=2PPm	=5PPm
Fe	=2PPm	=5PPm
Cu	=2PPm	=5PPm
Na	=2PPm	=5PPm
Zn	=2PPm	=5PPm

The use of product: 

3,3',4,4'benzophenonetetracarboxylic dianhydride,BTDA abbreviation,This product is a polyimide monomer And 

aromatic diamine polymerization production polyimide materials.It has excellent performance with high 

temperature resistant, good low temperature resistance, corrosion resistance, radiation resistance, insulation,

 impact resistance and so on. Can be made in structure, laminated board, films, adhesives, foam, high

 temperature fiber, curing agent, coating, insulation and reinforced material and so on. It is widelyused in 

aviation/aerospace, electrical/electronics, shipbuilding, automobile, precision machinery, and other fields.

Storage: It can be placed in dry and ventilated environment for three years under the condition of complete 

packaging.

Packing:2.5kg/Bag,25kg/Drum.