| Formula |
C24H51O4P
|
|---|---|
| CAS No. | 78-42-2 |
| EC No. | 201-116-6 |
| Synonyms | Tris(2-ethylhexyl) phosphate |
Tri-octylphosphate
Tri-octylphosphate (TOP), with the chemical formula (C₈H₁₇O)₃PO, is an organophosphorus compound consisting of a phosphate group bonded to three octyl groups (C₈H₁₇). It is a colorless to pale yellow liquid that is insoluble in water but highly soluble in organic solvents such as ethanol, ether, and chloroform. This compound is primarily used as a plasticizer, flame retardant, and solvent in various industrial applications, leveraging its excellent ability to interact with a wide range of organic materials.
Applications:
- Plasticizer: Tri-octylphosphate is commonly used as a plasticizer in the production of plastics, particularly polyvinyl chloride (PVC). By enhancing the flexibility, durability, and workability of the material, it is essential in making flexible films, coatings, and other PVC-based products.
- Flame Retardant: Due to its phosphorus content, tri-octylphosphate serves as a flame retardant in plastics, textiles, and other materials. It helps to reduce the flammability of products by promoting char formation when exposed to heat, thus enhancing safety and reducing the risk of fire.
- Solvent: Tri-octylphosphate is used as a solvent in chemical processes, especially in the extraction and purification of various compounds. It is highly effective for dissolving a wide range of organic substances, which makes it valuable in many industrial processes.
- Extraction Agent in Hydrometallurgy: In hydrometallurgical processes, tri-octylphosphate is utilized as an extractant for the selective separation and purification of metal ions, such as uranium, thorium, and other actinides. Its ability to form complexes with metal ions makes it useful in the extraction of metals from ores or waste solutions.
- Lubricants and Hydraulic Fluids: Tri-octylphosphate is employed in the formulation of lubricants and hydraulic fluids, especially in high-performance and extreme conditions. Its chemical stability and low volatility contribute to the long-lasting properties of these fluids in various mechanical systems.
- Intermediate in Organic Synthesis: As a versatile chemical intermediate, tri-octylphosphate is involved in the production of other organophosphorus compounds, such as plasticizers, stabilizers, and other specialty chemicals used across different industries.
- Agricultural Chemicals: It can also be used in agricultural formulations, particularly as an emulsifier or dispersant in pesticide or herbicide formulations, enhancing the spreadability and effectiveness of these chemicals.
- Nuclear Industry: Due to its ability to form complexes with certain metals, tri-octylphosphate has been used in the nuclear industry for the reprocessing of spent nuclear fuel, where it helps separate radioactive isotopes during the solvent extraction process.
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).