Tris(2-ethylhexyl) phosphate
Tris(2-ethylhexyl) phosphate (CAS 78-42-2), with the molecular formula [CH3(CH2)3CH(C2H5)CH2O]3P(O) and a molecular weight of 434.63 g/mol, is an organic phosphate ester. This chemical is widely recognised for its utility as a plasticiser, flame retardant, and hydraulic fluid. Its properties make it suitable for various industrial applications, enhancing the performance and durability of numerous materials.
- IUPAC
- ‘Trioctyl’ phosphate
- Synonyms
- ‘Trioctyl’ phosphate
![Tris(2-ethylhexyl) phosphate ([CH3(CH2)3CH(C2H5)CH2O]3P(O)) — chemical structure, CAS 78-42-2; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F78-42-2.png&w=3840&q=75)
Plasticiser
Tris(2-ethylhexyl) phosphate acts as an effective plasticiser, primarily in PVC and other polymers. It improves flexibility, workability, and durability of the final plastic products, making them suitable for applications requiring enhanced material properties.
Flame Retardant
This phosphate ester exhibits flame-retardant properties, making it a valuable additive in materials where fire resistance is crucial. It helps to reduce the flammability of polymers and other organic materials.
Hydraulic Fluid Component
Its chemical stability and lubrication characteristics make Tris(2-ethylhexyl) phosphate a component in certain hydraulic fluid formulations. It contributes to the smooth operation and longevity of hydraulic systems.
Chemical Synthesis Intermediate
As an organic phosphate, it serves as a building block or intermediate in various chemical synthesis pathways. Its structure allows for further modification in the creation of more complex organic molecules.
| Molecular weight | 434.63 |
|---|---|
| Linear formula | [CH3(CH2)3CH(C2H5)CH2O]3P(O) |
| Assay | 97% |
| Boiling point | 215 °C/4 mmHg(lit.) |
| Density | 0.92 g/mL at 20 °C(lit.) |
| Refractive index | n20/D 1.444(lit.) |
| Vapour pressure | 2.1 mmHg (20 °C) |
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 207 °C / 404.6 °F |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 38 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Tris(2-ethylhexyl) phosphate used for?
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Tris(2-ethylhexyl) phosphate is used as a plasticiser, flame retardant, hydraulic fluid component, and as a chemical synthesis intermediate.
What is the CAS number and chemical formula for Tris(2-ethylhexyl) phosphate?
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The CAS number is 78-42-2, and its linear formula is [CH3(CH2)3CH(C2H5)CH2O]3P(O).
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tris(2-ethylhexyl) phosphate with an assay of 97%. TSS does not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should Tris(2-ethylhexyl) phosphate be handled safely?
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Handling requires appropriate personal protective equipment, including eyeshields, face shields, and gloves. A full-face respirator or a multi-purpose combination respirator cartridge is recommended. It is classified as an irritant (Xi) with risk statement R38 (causes skin irritation).
How is Tris(2-ethylhexyl) phosphate packed and shipped?
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As a global supplier and exporter, Tech Serve Solutions ensures appropriate packaging and compliance with international shipping regulations for Tris(2-ethylhexyl) phosphate.
How can I request a sample or quote for Tris(2-ethylhexyl) phosphate?
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You can request a sample or a quote by contacting our sales team directly through our website or by calling our customer service.
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