Tri(2-ethylhexyl) phosphate
CAS 78-42-2
EC 201-116-6
Formula C24H51O4P
MW 434.63 g/mol
Organometallic Compounds Plastics & PolymersLubricants & MetalworkingTextile, Leather & PaperPrinting & PackagingCoatings, Adhesives, Sealants & ElastomersPersonal Care & Cosmetics Flame RetardancyCatalysisPlasticizer & SoftenerSolvent & CarrierPreservation & BiocideFlavoring & Acidulant
Description
Tri(2-ethylhexyl) phosphate (CAS 78-42-2) is an organophosphate ester supplied under trade names including Reomol TOF, Flexol TOF, and Disflamoll TOF, and abbreviated as TOF or TOP. It carries no assigned E-code and is classified under HS code 29190090 within the flame retardants category.
In flexible PVC and polymer formulations, TOF functions as both a plasticizer and flame retardant by releasing phosphoric acid fragments during combustion, interrupting the flame propagation cycle. It also serves as a process catalyst and solvent carrier in coatings, adhesives, and metalworking fluids, where its low volatility supports stable processing conditions.
TOF is available in liquid form and supplied in standard industrial packaging. It falls under REACH regulation and requires an up-to-date Safety Data Sheet for EU trade. Procurement teams should confirm supplier registration status and request batch-specific documentation for compliance-sensitive applications in textiles, leather, and printing.
In flexible PVC and polymer formulations, TOF functions as both a plasticizer and flame retardant by releasing phosphoric acid fragments during combustion, interrupting the flame propagation cycle. It also serves as a process catalyst and solvent carrier in coatings, adhesives, and metalworking fluids, where its low volatility supports stable processing conditions.
TOF is available in liquid form and supplied in standard industrial packaging. It falls under REACH regulation and requires an up-to-date Safety Data Sheet for EU trade. Procurement teams should confirm supplier registration status and request batch-specific documentation for compliance-sensitive applications in textiles, leather, and printing.
Physical Properties
| Melting Point | -74 °C |
| Boiling Point | 215 °C @ Press: 4 Torr |
| Density | 0.924 g/cm³ @ Temp: 26 °C |
| Flash Point | >230 °F |
| Color | Colourless |
| Form | Liquid |
| Water Solubility | <0.1 g/100 mL at 18 ºC |
| Vapor Pressure | 2.1 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.444(lit.) |
| pH | 7 (H2O, 20℃) |
Safety & Handling (Learn More)
Warning GHS07 GHS09
H
H315H319H400H410
P
P264P273P280P321P391P501P264+P265P302+P352P332+P317P337+P317P362+P364P305+P351+P338
Trade & Regulatory
| HS Code | 29190090 |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 2 |
Other Names
Tris(2-ethylhexyl) phosphatetris(2-ethylhexyl)phosphateTOPTOFTEHPFlexol TOFReomol TOFDisflamoll TOF
Related Products
Raw Materials
Derivatives
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