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High Flame Retardant CAS 78-40-0 Triethyl Phosphate TEP

Triethyl phosphate (TEP) is an organic compound with the chemical formula (C₂H₅O)₃PO. It is a colorless, oily liquid with a mild odor and is highly soluble in organic solvents such as ethanol and ether. Triethyl phosphate is a versatile ester of phosphoric acid, where the three ethyl groups (C₂H₅) are bonded to the phosphorus atom. It is known for its ability to act as a solvent, plasticizer, and chemical intermediate in various industrial and laboratory applications.
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  • TEP

Product Overview

Triethyl Phosphate (TEP) is a colorless, transparent liquid phosphorus-containing compound widely used as a flame retardant, plasticizer, solvent, and chemical intermediate. Its good compatibility and liquid form make it suitable for various polymer and polyurethane formulations.

Specification

Parameter

Specification

Unit

Content

≥99.5

%

Density (20°C)

1.069–1.073

g/cm³

Refractive Index (η20D)

1.4050–1.4070

Acid Value

≤0.05

mgKOH/g

Color (Pt-Co, APHA)

≤20

Water Content

≤0.05

%


Applications

1. Flame Retardant
TEP is used in polymer materials, polyurethane systems, coatings, and other applications where improved flame resistance is required.

2. Polyurethane Industry
It can be used as an additive in certain PU foam and polyurethane formulations. Depending on the formulation, TEP can help improve flame-retardant performance and modify processing characteristics.

3. Plasticizer
TEP can improve flexibility and processing properties in selected polymer systems.

4. Solvent and Chemical Intermediate
Due to its good solvency, TEP is also used as a solvent and as an intermediate in chemical synthesis.

Package

250kg/steel drum;

Storage

Store in a cool, dry, well-ventilated place, protected from heat and direct sunlight, and keep the container tightly closed.

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