Triphenyl Phosphite
Triphenyl Phosphite: High-Quality Chemical for Industrial Applications
Triphenyl phosphite is a versatile organophosphorus compound widely used as a stabilizer, antioxidant, and intermediate in various industrial processes. Our high-purity Triphenyl Phosphite meets stringent quality standards for applications in polymer production, lubricant formulations, and specialty chemical synthesis.
Key Product Specifications
- Chemical Formula: (C6H5O)3P
- CAS Number: 101-02-0
- Molecular Weight: 310.28 g/mol
- Appearance: Colorless to pale yellow liquid
- Purity: ≥99%
- Density: 1.18 g/cm³ at 25°C
- Flash Point: >110°C
- Solubility: Soluble in most organic solvents; insoluble in water
- Storage: Keep in tightly closed containers, protected from moisture
Technical Data Table
| Parameter | Specification | Test Method |
|---|---|---|
| Assay (GC) | ≥99.0% | ASTM E260 |
| Acidity (as H3PO4) | ≤0.1% | ASTM D974 |
| Water Content | ≤0.1% | Karl Fischer |
| Chloride Content | ≤50 ppm | Ion Chromatography |
| Heavy Metals (as Pb) | ≤10 ppm | ICP-OES |
| Refractive Index (20°C) | 1.585-1.590 | ASTM D1218 |
Applications of Triphenyl Phosphite
- Polymer Stabilizer: Protects polymers against thermal and oxidative degradation
- Chemical Intermediate: Used in the synthesis of phosphonates and other phosphorus compounds
- Lubricant Additive: Improves oxidation resistance in industrial lubricants
- Epoxy Resin Modifier: Enhances curing properties and thermal stability
- Flame Retardant Precursor: Serves as building block for advanced flame retardants
Triphenyl Phosphite FAQ
Q: What safety precautions should be taken when handling Triphenyl Phosphite?
A: Triphenyl Phosphite should be handled with appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work should be conducted in a well-ventilated area or fume hood. Avoid contact with skin and eyes, and do not ingest or inhale vapors. In case of contact, immediately flush with plenty of water and seek medical attention if irritation persists.
Q: How should Triphenyl Phosphite be stored for long-term stability?
A: Triphenyl Phosphite should be stored in tightly sealed containers made of stainless steel or glass lined with polyethylene. Keep containers in a cool, dry place away from moisture, heat sources, and oxidizing agents. Under proper storage conditions, Triphenyl Phosphite typically has a shelf life of 24 months. For optimal performance, nitrogen blanket storage is recommended.
Q: What are the alternatives to Triphenyl Phosphite in polymer stabilization?
A: While there are alternatives such as tris(nonylphenyl) phosphite or distearyl pentaerythritol diphosphite, Triphenyl Phosphite remains preferred for many applications due to its excellent cost-performance ratio, high efficiency at low concentrations, and compatibility with various polymer systems. The choice of stabilizer depends on specific application requirements, processing conditions, and regulatory considerations.
Packaging Options
| Package Type | Capacity | Material |
|---|---|---|
| Drums | 200 kg | Stainless Steel |
| Jerricans | 25 kg | HDPE |
| Intermediate Bulk Containers | 1000 kg | Stainless Steel |
| Bottles | 1 kg, 5 kg | Amber Glass |
Quality Assurance
Our Triphenyl Phosphite is manufactured under strict quality control procedures in ISO-certified facilities. Each batch undergoes comprehensive analytical testing including GC, HPLC, and spectroscopic analysis to ensure consistency and purity. Certificates of Analysis are available for all shipments.
More Questions About Triphenyl Phosphite
Q: What is the recommended dosage of Triphenyl Phosphite in polymer applications?
A: Typical usage levels range from 0.1% to 0.5% by weight in polymer formulations, depending on the specific polymer type and application requirements. Higher concentrations may be needed for severe processing conditions or demanding end-use environments. Compatibility testing is recommended when combining with other additives.
Q: Can Triphenyl Phosphite be used in food-contact applications?
A: While Triphenyl Phosphite has excellent technical properties, its use in food-contact applications requires careful consideration of regional regulations. Some jurisdictions permit its use within certain limits, while others may require alternative stabilizers. Always verify compliance with applicable food contact regulations before formulation.
Q: What is the typical lead time for Triphenyl Phosphite orders?
A: Standard lead time is 2-3 weeks for container quantities, with express shipping options available for urgent requirements. We maintain strategic inventory levels to ensure reliable supply. Custom packaging or specialty grades may require additional production time.
Regulatory Information
- REACH registered
- TSCA listed
- Complies with international chemical regulations
- SDS available in multiple languages
- Transport classification: Not classified as dangerous goods for transport
Note: The information provided about Triphenyl Phosphite is based on our current knowledge and intended for general guidance. Product specifications may be adjusted to meet technical developments. Users should conduct their own testing to determine suitability for specific applications.