• ✅ Ultra-high purity: ≥99% minimum assay (actual 99.6%), ensures consistent performance in all applications
• ✅ Low acidity: ≤0.10 mgKOH/g maximum (actual 0.08 mgKOH/g), minimizes corrosion and equipment wear
• ✅ Excellent color stability: ≤20 Pt-Co color (actual 18), ideal for clear and light-colored products
• ✅ Low residual impurities: ≤0.10% maximum 2-ethyl hexanol (actual 0.05%) and di(2-ethyl hexyl) phosphate (actual 0.02%)
• ✅ Superior interfacial tension: ≥18.0 mN/m minimum (actual 18.2 mN/m), excellent for liquid-liquid extraction processes
• ✅ Precise density control: 0.921-0.927 g/cm³ (actual 0.923 g/cm³), uniform physical properties for reliable processing
• ✅ Good thermal stability: Resists decomposition at high temperatures, suitable for high-temperature processing
• ✅ Low volatility: Low vapor pressure, reduces emissions during processing and use
• ✅ Multi-functional performance: Serves as plasticizer, flame retardant, extraction agent and lubricant additive
• ✅ Strict quality control: Batch-to-batch consistency guaranteed, suitable for large-scale industrial production

Tris(2-ethylhexyl) Phosphate, commonly known as TOP or Trioctyl Phosphate, is a versatile organic phosphate ester with CAS number 78-42-2. Its molecular formula is C24H51O4P, with a molecular weight of 434.64 g/mol. Our industrial grade product appears as a clear, colorless liquid, with strict control over purity, acidity, color and residual impurities.

As a high-performance phosphate ester, TOP is widely used as a primary plasticizer for PVC resins, providing excellent flexibility, low-temperature performance and flame retardancy. It is also extensively used as a solvent extraction agent for rare earth metals, uranium and other valuable metals, a flame retardant in plastics and coatings, and an additive in hydraulic fluids and lubricants. Its unique combination of low volatility, good thermal stability and excellent solvency makes it an essential raw material in many industrial processes.

Our tris(2-ethylhexyl) phosphate is produced with advanced synthesis and purification technology, with full batch traceability and complete supporting quality documents. We can provide customized specifications to meet specific customer requirements and ensure long-term stable bulk supply for global industrial manufacturers.

Appearance: Clear liquid

Packaging: 200kg UN-approved steel drum; 1000L IBC tote; 20m³ ISO tank for bulk shipment; Customized packaging available upon request

MOQ: 1 Metric Ton (25kg sample drum supported for testing and evaluation)

Storage Conditions: Store in tightly sealed containers in a cool, dry and well-ventilated warehouse at 5-30℃; Keep away from heat sources, open flames and strong oxidizing agents; Avoid direct sunlight; 24-month shelf life under proper storage conditions

Transport Classification: Common chemical

• TOP
• Trioctyl Phosphate
• Tris(2-ethylhexyl) Phosphate
• TOF
• Tri-2-ethylhexyl Phosphate
• CAS 78-42-2
• PVC Plasticizer TOP
• Flame Retardant Trioctyl Phosphate
• Metal Extraction Agent TOP

1. PVC Industry (Core Application): Used as primary plasticizer for flexible PVC products including wires and cables, hoses, films, sheets and flooring. Provides excellent flexibility, low-temperature resistance and flame retardancy.
2. Metal Extraction Industry: Applied as solvent extraction agent for rare earth metals, uranium, thorium and other valuable metals. Offers high extraction efficiency and excellent selectivity.
3. Flame Retardant Industry: Used as flame retardant plasticizer in plastics, rubber, coatings and adhesives. Improves fire resistance while maintaining mechanical properties.
4. Hydraulic Fluids & Lubricants Industry: Applied as anti-wear additive and extreme pressure agent in hydraulic fluids, lubricating oils and greases. Enhances lubricity and thermal stability.
5. Coatings & Inks Industry: Used as plasticizer and coalescent in solvent-based and water-based coatings and inks. Improves film formation, flexibility and adhesion.
6. Other Industrial Fields: Employed in the production of synthetic rubber, resins, pesticides and pharmaceutical intermediates.

A1: The recommended dosage of TOP in PVC formulations ranges from 10% to 40% by weight, depending on the desired flexibility and performance requirements. It is often used in combination with other plasticizers such as DOP and DINP to achieve optimal properties.

A2: Yes, TOP is highly compatible with most common plasticizers including DOP, DINP, DIDP and DOTP. It is also compatible with stabilizers, lubricants, pigments and other additives used in PVC formulations.

A3: TOP offers several advantages including lower volatility, better low-temperature performance, lower toxicity and excellent hydrolytic stability. It also provides superior flame retardancy compared to phthalate plasticizers.

A4: TOP is generally considered to have low acute toxicity. However, it is recommended to wear chemical-resistant gloves, safety goggles and protective clothing when handling large quantities. Avoid prolonged skin contact and inhalation of vapors.

A5: In case of spill:

• Contain the spill to prevent spread to drains and waterways
• Absorb with inert material such as sand, vermiculite or absorbent pads
• Collect in suitable closed containers for disposal
• Wash the area thoroughly with soap and water
• Do not allow product to enter the environment

A6: TOP has a shelf life of 24 months when stored in tightly sealed original containers at temperatures between 5-30℃. It should be stored in a cool, dry and well-ventilated area away from direct sunlight, heat sources and incompatible materials. It is stable under normal storage conditions and does not require special handling.