What Is Triethyl Phosphate (TEP)?
Triethyl Phosphate (TEP) is a high-purity phosphate ester widely used as a plasticizer, flame retardant, solvent, and lubricant additive. It provides excellent solvency, thermal stability, and compatibility with PVC, resins, rubber, oils, coatings, inks, lubricants, and chemical formulations.
• Multi-functional: plasticizer, flame retardant, solvent
• Compatible with PVC, rubber, and resins
• High purity ≥99.5%
Technical Specifications
| Appearance: | Clear, colorless liquid |
|---|---|
| Purity: | ≥99.5% |
| Molecular Weight: | 222.22 g/mol |
| Density (20°C): | 0.981 g/cm³ |
| Acid Value: | ≤0.1 mg KOH/g |
| Viscosity: | ≤10 cPs |
| Refractive Index: | 1.433 |
| cURL Too many subrequests. | 220°C |
| Flash Point: | 130°C |
| Moisture: | ≤0.05% |
Key Advantages
Flame Retardant Properties
TEP is widely used as a flame retardant in hydraulic fluids, plastics, rubber, and polymers.
Plasticizer Performance
TEP provides superior plasticization for PVC, cellulose, and synthetic rubbers.
Excellent Solvent
Works effectively as a solvent for oils, resins, waxes, and polymers, offering high solvency for a wide range of materials.
Low Volatility & High Stability
TEP performs well in high-temperature and high-pressure systems.
Non-toxic & Low Environmental Impact
TEP is considered low-toxicity and environmentally safer compared to other plasticizers.
Flexible Packaging Options
Available in 200KG drums and 1000KG IBC tanks to suit different volume requirements.
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Flame Retardants
TEP is commonly used as a flame retardant in plastics, polymers, resins, and hydraulic oils, providing fire resistance in critical applications.
Plasticizer for PVC & Rubber
Enhances flexibility, softness, and impact resistance in PVC, cellulose, and synthetic rubbers.
Solvent for Coatings & Inks
TEP serves as an effective solvent for oils, waxes, dyes, and polymers in coatings and inks, improving the flowability and adhesion of formulations.
Lubricant Additives
Functions as a lubricant additive, forming a protective layer on moving parts and reducing friction in high-temperature environments.
Oilfield & Chemical Additives
Used in oilfield chemicals and chemical manufacturing, such as in the production of pharmaceuticals, rubber, and other industrial chemicals.
Chemical Extraction
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Case Studies
Coatings Manufacturer (Turkey)
Application: Nitrocellulose coatings
Results:
- Improved film leveling
- Reduced viscosity fluctuation
- Better adhesion to substrates
PVC Flooring Factory (Indonesia)
Application: PVC flooring production
Results:
- 12% increase in flexibility
- Enhanced low-temperature performance
- Improved product durability
Lubricant Manufacturer (UAE)
Application: Fire-resistant hydraulic fluid
Results:
- Increased flash point
- Improved thermal stability
- Extended fluid life cycle
Comparative Analysis
| Feature | TEP | DOP | DBP |
|---|---|---|---|
| Plasticizing Efficiency | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ |
| Flame Retardancy | High | Medium | Low |
| Environmental Profile | Safer | Restricted | Not Suitable |
Factory & Production Strength
Industry-Leading Capacity
Our manufacturing facilities include advanced reactors, stainless steel production vessels, IBC filling lines, and Class-A chemical warehouses.
High Volume, Fast Delivery
With 20,000+ tons annual capacity, we ensure stable supply, rapid shipping, and reliable global distribution.
Quality Control Laboratory
- GC Purity Testing: Every batch tested for ≥99.5% purity.
- Moisture Testing: Controlled to ≤0.05% for stability.
- Acid Value Check: Ensuring ≤0.1 mgKOH/g.
- Viscosity & Density: Measured for each batch.
- Refractive Index: Ensures molecular consistency.
TEP Production Process Flow
1. Raw Material Selection
High-grade raw materials ensure consistent quality.
2. Esterification Reaction
Advanced reactors ensure complete reaction and purity.
3. Distillation & Purification
High-efficiency purification guarantees ≥99.5% TEP.
4. Final QC Testing
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Steel drums, IBC tanks, and ISO tanks available.
Air & Sea Shipping
Safe for both air and sea freight.
Documentation
Includes COA, MSDS, SGS and Origin Certificate.
Ultimate Buyer’s Guide
1. Confirm Your Application
- PVC & Rubber: TEP offers superior plasticizing and low-temperature performance.
- Coatings & Inks: Ideal solvent and binder for acrylics and resins.
- Hydraulic Fluids: Works well as a flame retardant and stabilizer.
- Extraction & Chemical Manufacturing: Ideal for metal separation and compound synthesis.
2. Request Samples
You will receive free 100–500g samples of TEP, accompanied by COA, MSDS, and technical datasheets.
3. Receive Technical Support
We offer formulation support, quality consultation, and assistance in optimizing applications for plasticizers, flame retardants, and chemical additives.
4. Place Your Order
Standard MOQ: 200KG drum. Lead time: 10–15 days for bulk orders.
5. Shipping & Packaging
TOP is available in 200KG drums and 1000KG IBC tanks. For bulk orders, we also offer ISO tank shipping.
6. Quality Control & After-Sales Support
Every order is traceable with full batch tracking and documentation. We also provide long-term support to ensure satisfaction.
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