| Customization: | Available |
|---|---|
| CAS No.: | 85-44-9 |
| Formula: | C8h4o3 |
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Phthalic anhydride is an organic compound with molecular formula c8h4o3. It is a cyclic anhydride
formed by intramolecular dehydration of phthalic acid. Phthalic anhydride is a white solid. It is an
important raw material in chemical industry, especially in the manufacture of plasticizer. Hydrolysis,
alcoholysis and ammonolysis can occur, and anthraquinone derivatives can be synthesized by
reacting with aromatic hydrocarbons. Phthalic anhydride is industrially prepared by vapor phase
oxidation of naphthalene and air at 350 ~ 360 ºC under the catalysis of vanadium pentoxide.
It can also be prepared by air oxidation of o-xylene.
| Item | Standard |
| Product Name | O-Phthalic Anhydride,Phthalic Anhydride,PA |
| Purity | ≥99.5% |
| CAS NO | 85-44-9 |
| EINECS No. | 201-607-5 |
| Appearance | White scale or crystalline powder |
| Melting chromaticity number | ≤20 |
| Crystallization point ºC | ≥130.8 |
| Thermal stability color number | ≤50 |
| Free acid% | ≤0.20 |
| Molecular Formula | C8H4O3 |
| Application | Plasticizer Manufacturing Raw Material.Curing agent for epoxy resin etc. |
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