Chemical Name: 4,4′-Oxydiphthalic anhydride / ODPA
Synonyms: Oxydiphthalicanhydride; Bis-(3-phthalyl anhydride) ether
CAS No.: 1823-59-2
Molecular Formula: C16H6O7
Density: 1.696g/mLat 25°C(lit.)
Boiling point: 162°C(lit.)
Molecular Weight: 310.21
Appearance: White powder
ODPA Details
Chemical Name: 4,4′-Oxydiphthalic anhydride / ODPA
CAS No.: 1823-59-2
Molecular Formula: C16H6O7
Density: 1.696g/mLat 25°C(lit.)
Boiling point: 162°C(lit.)
Molecular Weight: 310.21
Molecular Structure:
Appearance: White powder
Typical Properties
| Item | Standard |
| Appearance | Colorless clear liquid |
| Purity | ≧99.50% |
| SO4 2- ppm W | ≦50 |
| F– ppm W | ≦10 |
| H2O ppm W | ≦500 |
ODPA Usage
1.Used in the manufacture of polyester fibers, polyester electrical appliances, unsaturated
2.It has a wide range of uses and is known as the strongest organic acid.
3.It is an omnipotent synthetic tool.
4.It has strong corrosiveness and hygroscopicity, and is widely used in medicine, chemical industry and other industries, such as nucleosides, antibiotics, steroids, proteins, carbohydrates, vitamin synthesis, silicone rubber modification, etc.
Packaging and Shipping
Packing: 50kg/drum 90kg/drum
ODPA Storage
1.Keep away from heat, sparks, and flame.
2.Keep away from sources of ignition.
3.Keep container closed when not in use.
4.Stored in a tightly closed container.
5.Stored in a cool, dry, well-ventilated area away from incompatible substances.
