Table of Contents
- Product Overview
- Specifications & Comparison
- Applications
- Usage Guide
- Case Studies
- Contact for Quotation
Phenylphosphinic Acid (CAS 1779-48-2) Overview
A organophosphorus compound with molecular formula C6H7O2P. Key parameters:
| Parameter | Value |
|---|---|
| CAS Number | 1779-48-2 |
| Molecular Weight | 142.09 g/mol |
| Appearance | White crystalline powder |
| Purity | ≥98% |
| Melting Point | 160-163°C |
| Solubility | Soluble in water, ethanol |
Technical Comparison Table
| Property | Phenylphosphinic Acid | Phenylphosphonic Acid | Hypophosphites |
|---|---|---|---|
| Thermal Stability | 220°C | 250°C | 180°C |
| Flame Retardancy (LOI) | 32% | 28% | 25% |
| Reactivity | Moderate | High | Low |
Industrial Applications
1. Flame Retardants
Widely used in engineering plastics (PA, PBT, PET) for UL94 V-0 compliance. Reduces smoke density by 40% compared to traditional additives.
2. Pharmaceutical Intermediates
Critical precursor for antiviral drugs like Foscarnet sodium (HIV treatment) and metal-chelating agents.
3. Coordination Chemistry
Forms stable complexes with transition metals (Cu, Fe, Ni) for catalytic applications in cross-coupling reactions.
Operational Guidelines
Dosage Recommendations
| Application | Concentration | Processing Temp |
|---|---|---|
| Polyamide 6 | 8-12% | 260-280°C |
| Epoxy Resins | 15-20% | 120-150°C |
Safety Protocols
Use PPE (gloves/goggles) when handling. Store in cool (<25°C), dry conditions. LD50 (oral rat): 2300 mg/kg.
Client Implementations
Case 1: German Automotive Supplier
Client: Top 3 automotive polymer manufacturer
Challenge: Achieve UL94 V-0 in thin-wall (0.8mm) connectors
Solution: 10% Phenylphosphinic acid + glass fiber reinforcement
Result: Passed 5VA certification with 28% cost reduction vs brominated systems
Case 2: Indian Pharma Company
Client: API producer for HIV medications
Challenge: Improve synthesis yield of Fosdevir intermediate
Solution: Chelating agent in Grignard reaction
Result: Yield increased from 68% to 82% with 99.5% purity
Request Customized Solutions
Contact our technical team for formulation support or bulk pricing:
- Email: info@vivalr.com
- Tel: (86) 15866781826
- ISO 9001 certified production with 500MT/year capacity



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