The product
4?4\'-Diaminodiphenyl ether, produced by using a
self-developed hydrogenation reduction technology, is of high
product purity and good quality. It is a high value-added fine
chemical product.
Appearance: white crystal powder
Melting point: **1min
Water content: 0.*5%max
Ash content: 0.*5%max
Metal content: 2ppm max
Insoluble matter: *0ppm max
Assay: *9.8%min
