Ortho-Phthaloyl Chloride (OPC) is a difunctional acid chloride, whose liquid form makes it convenient in many products. OPC is used to provide color stability in anhydrides, as a component in ceramic mold binders, in reverse osmosis membranes, in the preparation of high-temperature catalysts, and as a specialty chemical ingredient. DuPont OPC is a clear yellow liquid available in drums to customers worldwide.
Purity: 95% minimum
Appearance: Clear, yellow liquid
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CAS Registry Number
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88-95-9 |
| CAS Name |
1,2-Benzenedicarbonyl dichloride |
| Molecular Formula |
C6H4(COCl)2 |
| Molecular Weight |
203.0 |
| Specific Gravity at 25°C (77°F) |
1.414 |
| Boiling Point (760 mmHg),°C (°F) |
269 (516) |
| Melting Point Range, °C (°F) |
15–16 (59–61) |
| Flash Point, COC |
None to boiling |
| Solubility in Water |
Reacts |
| Solubility in Ether |
Soluble |
*These properties are drawn from various DuPont and other literature sources. DuPont does not make any warranty, express or implied, that future production will demonstrate these typical properties.
OPC is a corrosive liquid, available in 600 lb net polyethylene drums.
