PHTHALIC ANHYDRIDE
Product Description
| Product | PHTHALIC ANHYDRIDE |
| CAS | 85-44-9 |
| Formula | C8H4O3 |
| Synonym | 1,3 Isobenzofurandione, 1,3 Dixophthalan, 1,2 Benzenedicarboxylic acid anhydride, Phthalic acid anhydride, 1,3-Isobenzofurandione |
Typical Product Specifications
| Density | 1.527 (4 c) |
| Slightly Soluble | in ether, hot water |
| Very Soluble | in water |
| Melting Point | 130.8 c |
| Color, APHA | 20 Max. |
| Freeze point | 130.9° C Min. |
| Assay | 99.7% Min |
| Heat Color (Stability), APHA | 50 Max. |
| Phthalic Acid | 0.2% w/w |
| Vapor Pressure | 1 mm (96.5 c) |
| Odor | mild odor |
| Molecular weight | 148.12 |
| Flash Point | (cc) 151 c |
| Solubility | alcohol, carbon disulfide |
| Boiling Point | 295 c |
| Chemical Structure |  |
| Notes | Used widely in the manufacture of phthalate plasticizers such as dioctyl phthalate in the manufacture of PVC. It is also found in unsaturated polyester resins for the construction, marine, and transportation markets.
For more information on Phthalic Anhydride CAS 85-44-9: |
| Class | Chemical Intermediates, Toxic Release Inventory (TRI) Chemicals |
| Function | Plasticizers, Intermediates |
| Industry | Industrial, Resin & Coating |
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