Customization: | Available |
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CAS No.: | 85-44-9 |
Formula: | C8h4o3 |
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Product Name: Phthalic anhydride
CAS:85-44-9
Molecular Formula: C8H4O3
Assay:99.0% min
Appearace:White powder
Technical Paramater of Phthalic Anhydride:
Item | Index | ||
Top grade | First grade | Qualified product | |
Appearance | white scaly or crystalline powder | white scaly or crystallinepowder with slight colors | |
molten Chroma(Chroma no. )≤ | 20 | 50 | 100 |
thermostable Chroma(Chroma no. )≤ | 50 | 150 | - |
Chroma of vitriol(Chroma no. )≤ | 60 | 100 | 150 |
crystallization point°C≥ | 130.5 | 130.3 | 130.0 |
Purity(mass fraction)%≥ | 99.80 | 99.50 | 99.00 |
Free acid(mass fraction)≤ % | 0.20 | 0.30 | 0.50 |
Applications of Phthalic Anhydride:
Phthalic anhydride is an important organic chemical raw material, mainly used in the production of plastic plasticizers, alkyd resins, dyes, unsaturated resins and certain pharmaceuticals and pesticides. Currently widely used in chemical, pharmaceutical, electronics, agriculture, coatings, fine chemicals and other industrial sectors.