Triethyl Phosphate (TEP) CAS Number: 78-40-0
CAS No. 78-40-0
Molecular Formula C6H15O4P
Molecular Weight 182.16
Density (20℃) 1.068 - 1.072 g/ml
Description Capacity: 20000T annual; Supplying to EU; Avoid anti-dumping tax; 0 anti-dumping tax to EU;
20+ years supplying history;
No claims;
Good and stable quality; Stable supplying;
SGS testing approved; EMTEK, SRICI tested; ISO:90012/ 2015 certified, AAA Credit certified;
Delivery Time: 15-20 days;
Audit acceptable;
Competitive price;
Bigbags Packing; On pallets; IBC packing;
| Testing Item | Standard |
| Content (%) (GC Method) | 99.5 Min |
| Moisture (%) | 0.1 Max |
| Acid Value (mg KOH/g) | 0.05 Max |
| Color (APHA) | 20 Max. |
| Appearance | Colorless Transparent Liquid |
HS Code: 2919900090
CAS No.: 78-40-0
EINECS: 201-114-5
● Packages:
200kgs iron drum, or IBC.


Handling
1. Avoid breathing vapors or mists.
2. Avoid contact with skin, eyes, and clothing.
3. Use in a well-ventilated area.
4. Wear appropriate PPE: chemical-resistant gloves, safety goggles/face shield, and protective clothing.
5. Keep away from heat, sparks, and open flames.
6. Do not eat, drink, or smoke while handling.
7. Wash hands thoroughly after handling.
8. Prevent spills and avoid environmental release.
Storage
1. Store in a cool, dry, well-ventilated place.
2. Keep container tightly closed when not in use.
3. Protect from heat and direct sunlight.
4. Keep away from strong oxidizing agents and strong acids.
5. Store in original containers or approved storage tanks.
6. Ground/bond containers during transfer to prevent static discharge.
7. Follow local regulations for flammable liquid storage.
1. Flame Retardant Applications
TEP functions as a phosphorus-based flame retardant by promoting char formation and reducing flammability.
Main uses:
Polyurethane (PU) foams
Unsaturated polyester resins
Epoxy systems
Phenolic resins
Cellulose-based materials
Advantages:
Halogen-free solution
Low smoke generation
Good thermal stability
Suitable for environmentally conscious formulations
2. Plasticizer
TEP is used as a plasticizer to improve flexibility and processing performance.
Applications:
PVC compounds
Cellulose acetate
Synthetic rubber
Vinyl resins
Function:
Enhances flexibility
Improves workability
Reduces brittleness
3. Solvent and Processing Aid
Due to its excellent solvency and low volatility, TEP is widely used as:
Solvent for cellulose derivatives
Catalyst carrier in chemical reactions
Processing solvent in coatings and resins
Intermediate solvent in fine chemicals
4. Textile and Coating Industry
Flame-retardant textile treatments
Coatings and varnishes
Back-coating for fabrics
Provides improved fire resistance without significantly affecting mechanical properties.
5. Electronics and Industrial Applications
Hydraulic fluids (fire-resistant type)
Lubricant additives
Specialty resins
Electrolyte additive in certain formulations
6. Chemical Intermediate
TEP is also used as:
Ethylating agent in organic synthesis
Intermediate in pharmaceutical and agrochemical production
OUR MARKET
Up till now we’ve developed and supplied to many countries and areas all over the world, with main markets in European countries (Germany, Italy, UK, Spain, Ukraine, Russia, Poland, etc.), USA, South America, Mid East, South-east Asia, Australia, etc. Also seeking more strategic partners and customers under mutual benefits and work through the whole purchasing chain.

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Vietnam
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India
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Belgium
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USA
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Czech Republic
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Mexico
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Colombia
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Singapore
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Ecuador
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Peru
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Russia
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Turkey
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Costa Rica
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Chile
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Indonesia
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Pakistan
Send Inquiry
We are committed to providing you with the best quality service and look forward to communicating with you to solve problems together and bring you a better experience.





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