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Novolyte Phosphines - for Polyamide Manufacture and as Catalyst Building Blocks
Novolyte is the largest producer in the world of BZPA:
BZPA - Benzene Phosphinic Acid CAS# 1779-48-2
Novolyte is the only commercial source of TOPAK:
TOPAK - Potassium Salt of Toluene Phosphinic Acid CAS# 16263-37-9
Effects on Nylon - BZPA or TOPAK, at 500 to 1500ppm:
- Catalyze condensation polymerization
- Are antioxidants that reduce color during processing
- Improve processing and lower costs by reducing defects and fiber breaks during spinning
- Improved strength of fiber and woven fabric for high performance applications
Description and Properties
- BZPA is sold in convenient to use briquettes
- In fiber drums or supersacks
- Is often dissolved in amine prior to polymerization
- Sodium BZPA - this salt is available as a powder or aqueous solution
- Is used to produce polymer alloys
- And to improve the properties of glass-reinforced polymers
- TOPAK - this potassium salt is available as a powder
- DPC - The diphenyl chorophosphine is an intermediate for API, catalyst, and fine chemical applications
| Novolyte Phosphine |
Melting point °C |
Molecular Weight |
Comment |
| BZPA |
82-87 |
142.09 |
Soluble in amines |
| NaBZPA |
164.1 |
164.1 |
Soluble in water |
| DPC |
220.6 |
220.6 |
Reactive intermediate |
| TOPAK |
180.1 |
180.1 |
Soluble in water |