Diaminodiphenylmethane MDA CAS No.101-77-9

Physical and Chemical Properties

Melting point 89-91 °C

Boiling point  242 °C2 mm Hg(lit.)

Density 1.15

Refractive index  1.5014

Flash point  430 °F

Solubility Insoluble in water

Form White to yellow-brown granues

Acidity coefficient (pKa) 5.32±0.25(Predicted)

Water solubility Slightly soluble. <0.1 g/100 mL at 19 ºC

Solubility  Easily soluble in hot water, ethanol, ether and benzene.

Product Specification

1) Appearance: White granules. Deep color allowed after storage.

4,4-Diaminodiphenyl methane > 99%
Initial melting point > 890C

Main applications

MDA is an important intermediate, 1) mainly used to produce MDI and HMDI, also 2) used in production of Polyimide (PI) insulating paint, polyesterimide (PEI) insulating paint, bismaleic resin and 3) other electrical insulating materials, 4) used for curing agent of epoxy resin, 5) chain extender of polyurethane elastomer. The above products synthesized with MDA have excellent mechanical properties, insulation properties and high resistance to corrosion

Temperature resistance, radiation resistance and wear resistance.

Safety Information

Dangerous Goods Sign T,N

Hazard category code

45-39/23/24/25-43-48/20/21/22-51/53-68

WGK Germany 3

RTECS number BY5425000

TSCA  Yes

Package

25kg/bag, 500kg/bag.