Overview
Tris(2,3-dibromopropyl) phosphate (CAS 126-72-7 ), also known as TDBPP or Tris-BP, is a reactive and additive halogenated flame retardant used to reduce flammability in polymer systems and treated materials.
Historically applied across multiple industrial sectors, its use is now subject to significant regulatory restrictions in many markets due to environmental and toxicological concerns that procurement teams must evaluate before sourcing.
In plastics and polymer compounding, TDBPP was incorporated into polyurethane foams, polyester resins, and thermoplastics to meet fire resistance standards in construction and automotive components.
Textile and upholstery manufacturers applied it as a flame-retardant finish for synthetic fabrics, particularly in applications requiring compliance with flammability testing requirements.
Electronics and electrical component producers used it to achieve UL 94 flame ratings in housings and insulating materials. Paper and leather processing operations also employed it where surface flame retardancy was required.
Tris-BP is supplied as a liquid at standard commercial concentrations. Technical grade is the primary form available through specialty chemical distributors for industrial applications.
Due to its restricted status under REACH and other regulatory frameworks, availability is limited, and buyers should confirm regulatory compliance for their target market before placing orders.
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Physical Properties
| Melting Point | 5.5 °C |
| Boiling Point | 544.2±50.0 °C(Predicted) |
| Density | 2.27 g/cm³ @ Temp: 25 °C |
| Appearance | TDBP is a thick, clear to yellowish liquid. Odorless. |
| Form | neat |
| Water Solubility | 8mg/L(24 ºC) |
Safety & Handling
Danger GHS07 GHS08 GHS09 Hazard Statements H401 Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard] H411 Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard] H302 Harmful if swallowed [Warning Acute toxicity, oral] H341 Suspected of causing genetic defects [Warning Germ cell mutagenicity] H350 May cause cancer [Danger Carcinogenicity] H361 Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity] H373 May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
Trade & Regulatory
| HS Code | 29191000 |
| UN Number | 3082 |
| ADR Class | 9 |
| Packing Group | III |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 126-72-7
- EC Number
- 204-799-9
- Mol. Weight
- 697.6
- HS Code
- 29191000
- Category
- Flame Retardants