Para Benzoquinone (PBQ)

We have developed our own effluent free Kemeox oxidation process for the manufacture of PBQ.

Para Benzoquinone, a chemical compound, which acts as a cross linking agent. It is a green to yellow crystalline solid which is used in nylon fiber to press clothes. It is advantageous in stabilizing unsaturated polyester and also used as a chemical intermediate. It is also known as 2,5 cyclohexadiene and 1,4 dione.

Specifications:

• Chemical formula: C6H4O2
• Color: yellow to green
• Assay: gc 99% min
• Molecular weight(calculated): 108.10
• Melting point c (f): 113 (235)
• Moisture content: wt% 0.2
• Loss on drying: 0.2%
• Specific gravity: 20/4c 1.32
• Heat of combustion, kcal/g-mole 659
• CAS Number: 106-51-4

Applications:

• Para-Benzoquinone has a considerable vapor pressure and readily sublimes and condenses to form bright yellow needles
• Para-Benzoquinone acts as a cross linking agent
• It has been shown to increase the moisture''''s resistance of nylon fiber thermoplastic and to reduce the flammability of nylon fiber
• When used in nylon fiber to press clothes, it improves the heat resistance and strength of the fabric
• Para-Benzoquinone can act as a staining agent for proteins and polymerizes, which tends to limit its usefulness in some applications
• P-Benzoquinone is useful in stabilizing unsaturated polyester resins during processing, shipment, and storage in either catalyzed or per catalyzed form
• It is also used as a chemical intermediate for euphemistic, a herbicide