Description
4,4'-Oxydianiline
Chemical Name: 4,4'-Oxydianiline (Recrystallization method )
Other Name: 4,4'-diaminodiphenyl ether
Molecular formula : C12H12N2O,
Molecular weight :236.26704
CAS : 101-80-4
EINECS:202-977-0
Appearance: Colorless
crystal particles (slightly yellow or slightly gray allowed), soluble in some
organic solvents, slightly soluble in ethanol, insoluble in water, soluble in
dilute hydrochloric acid.
Application of 4
4'-Oxydianiline
1. It is one of the
important raw materials for high temperature resistant resins such as
polyimide, polyetherimide, polyesterimide, polymaleimide, and polyaramid;
2. It is also the raw material for the synthesis of 3,3',4,4'-tetraaminodiphenyl ether, which is the main monomer for preparing a series of aromatic heterocyclic heat-resistant polymer materials.
3. It is also used as a raw material and cross-linking agent for high-performance heat-resistant epoxy resin, polyurethane and other synthetic polymers.
4. At the same time, it is also used in the production of azo dyes, reactive dyes and perfumes to replace benzidine which has carcinogenic effects.
Packing: Inner packing aluminum film bag vacuum packing, outer packing is carton or cardboard barrel, can be packed according to customer requirements.
According to the production process, different products are divided into sublimation and recrystallization products
Quality standard of Recrystallization method
Inspection items |
Quality standard |
Appearance |
colorless crystal particles (slightly yellow or slightly gray allowed) |
Purity |
≥99.50% |
Melting point: |
≥188.0℃ |
Vdaf |
≤0.2% |
Metal ions |
Calcium (mg/kg) < 2.0
Copper (mg/kg) < 2.0
Iron (mg/kg)
< 2.0
Potassium
(mg/kg) < 2.0
Sodium (mg/kg) < 2.0
|