| Structure |  |
|---|---|
| Formula |
C6H15O4P
|
| CAS No. | 78-40-0 |
| EC No. | 201-114-5 |
| Synonyms | Phosphoric acid, triethyl ester; Triethoxyphosphine oxide; Tris(Ethyl) phosphate; Ethyl phosphate; Phosphoric acid triethyl ester; Triethyl orthophosphate |
Triethyl phosphate
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.
Applications:
- Plasticizers: Triethyl phosphate is commonly used as a plasticizer in the manufacturing of plastics, particularly in the production of cellulose derivatives and other polymers. It imparts flexibility and enhances the workability of plastic materials.
- Flame Retardant: Due to its phosphorus content, triethyl phosphate is utilized as a flame retardant in a variety of materials, including plastics, textiles, and coatings. It helps reduce the flammability of these materials by promoting char formation during combustion.
- Solvent: Triethyl phosphate is widely used as a solvent in chemical synthesis, particularly in the preparation of resins, lacquers, and paints. It is effective in dissolving various organic compounds, especially those that are difficult to dissolve in typical solvents.
- Chemical Intermediate: As an intermediate in organic synthesis, triethyl phosphate is used in the production of other chemicals, such as organophosphates, which have applications in insecticides and herbicides. It can also be used to prepare various phosphorus-containing compounds.
- Hydraulic Fluids and Lubricants: Triethyl phosphate is employed in the production of hydraulic fluids and lubricants, particularly in high-performance applications where its chemical stability and low volatility are beneficial.
- Laboratory Reagent: In laboratories, triethyl phosphate is used in the preparation of reagents, as a solvent for reactions requiring phosphorus-based compounds, and as a medium for crystallization and extraction processes.
- Extractive Distillation: Due to its solvent properties, triethyl phosphate is sometimes used in extractive distillation processes, helping to separate components in complex mixtures by altering their relative volatilities.
Shelf Life:
Under proper storage conditions, the shelf life is 12 months.
Health & Safety:
Detailed information on the product described can be found in our relevant Health and Safety Information (Material Safety Data Sheet).