Phthalic Anhydride - Manufacturers, Suppliers and Exporters
Phthalic anhydride is the organic compound with the formula C6H4(CO)2O. It is the anhydride of phthalic acid. This colourless solid is an important industrial chemical, especially for the large-scale production of plasticizers for plastics.
Specification of Phthalic Anhydride flakes 99 pct min
Characteristics
| Purity (m/m), wt% |
99.64 |
| Crystallizing point, 0C,min |
130.9 |
| Iron (Fe) (m/m), wt% |
0.000006 |
| Phthalic acid content, wt% , min |
Absent |
| Maleic anhydride (m/m), wt%, max |
0.001 |
| Ash (m/m), wt%, max |
0.001 |
Melted products color,
Hasen units, max
-at output
|
15 |
Melted products colour after
heating at 2500C during 90 minutes,
Hasen units:
- at output
|
40 |
|
|
