Tributyl phosphate
CAS 126-73-8
EC 204-800-2
Formula C12H27O4P
MW 266.31 g/mol
Flame Retardants Plastics & PolymersTextile, Leather & PaperPrinting & PackagingLubricants & MetalworkingFood & Nutrition Flame RetardancyCatalysisPlasticizer & SoftenerFlavoring & AcidulantSolvent & Carrier
Description
Tributyl phosphate (TBP, also known as TBPA, Celluphos 4, Disflamoll TB, and Calloway 6814) is an organophosphate ester produced by reacting phosphoric acid with n-butanol. It carries no E-code designation and is registered under CAS 126-73-8 and EC 204-800-2.
In polymer and textile processing, TBP functions as a flame retardant by releasing phosphoric acid derivatives during combustion, interrupting the radical chain reactions that sustain burning. It also serves as an extraction solvent in nuclear fuel reprocessing and rare-earth separation, where its affinity for metal nitrate complexes drives selective phase transfer.
TBP is supplied as a technical-grade liquid compliant with REACH registration requirements. Procurement teams should confirm supplier documentation for SVHC status and SDS alignment with CLP regulations. Standard packaging includes IBC containers and drums; food and flavor applications require confirmation of applicable purity specifications before use.
In polymer and textile processing, TBP functions as a flame retardant by releasing phosphoric acid derivatives during combustion, interrupting the radical chain reactions that sustain burning. It also serves as an extraction solvent in nuclear fuel reprocessing and rare-earth separation, where its affinity for metal nitrate complexes drives selective phase transfer.
TBP is supplied as a technical-grade liquid compliant with REACH registration requirements. Procurement teams should confirm supplier documentation for SVHC status and SDS alignment with CLP regulations. Standard packaging includes IBC containers and drums; food and flavor applications require confirmation of applicable purity specifications before use.
Physical Properties
| Melting Point | <-80 °C |
| Boiling Point | 177-178 °C @ Press: 27 Torr |
| Density | 0.976 g/cm³ @ Temp: 25 °C |
| Flash Point | 380 °F |
| Appearance | Stable, colorless liquid; odorless. Miscible with most solvents and diluents; soluble in water. Combustible. |
| Color | Clear |
| Odor | Odorless |
| Form | Liquid |
| Water Solubility | 0.6 g/100 mL |
| Vapor Pressure | 27 mm Hg ( 178 °C) |
| Refractive Index | n 20/D 1.424(lit.) |
| Log P | 4 at 20℃ |
Safety & Handling (Learn More)
Danger GHS07 GHS08 GHS05 GHS09 GHS06
H
H302H315H318H319H330H332H351H371H373H401H411H412
P
P203P260P261P264P270P271P273P280P284P316P317P318P319P320P321P330P391P405P501P264+P265P301+P317P302+P352P304+P340P308+P316P332+P317P337+P317P362+P364P403+P233P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 29190010 |
| UN Number | 1208 |
| ADR Class | 3 |
| Packing Group | II |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 2 |
Other Names
butyl phosphateTributylphosphatetri-N-butyl phosphateTBPTBPAANTIFOAM TCelluphos 4Disflamoll TB
Related Products
Raw Materials
Derivatives
Need a chemical? Get a quote within 24 hours.