SUNCHEM

Tetrabromophthalic anhydride(TBPA)

Tetrabromophthalic anhydride (TBPA) is a reactive brominated flame retardant intermediate containing four bromine atoms, used in the production of flame-retardant polyols, unsaturated polyester resins, and epoxy resin systems. SUNCHEM supports international buyers with TBPA sourcing from qualified Chinese producers, with quality documentation, export coordination, and…

632-79-1

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CAS No.632-79-1

FormulaC8Br4O3

Synonyms1,3-Isobenzofurandione, 4,5,6,7-tetrabromo-; 4,5,6,7-tetrabromo-2-benzofuran-1,3-dione;

Product overview & key benefits

Existing Supplier Overview

China currently plays a very important role in the world market for plastic additives, with 168, 1010, DSTDP, DLTDP, 977 and 365 being the most produced products in the world. The price of plastic additives varies significantly with oil, while the cost correlation between antioxidants and palm oil is high. Since 2020, the number of black swan events in the world has increased, resulting in dramatic changes in raw material prices. Companies such as UPP, SONGWON, PMC, LG, etc. have been alerted by us in time and have avoided many losses.

Technical specifications

Property	Reference value
Density	2.771 g/cm3
Boiling Point	540.5ºC at 760 mmHg
Melting Point	274-280ºC
Flash Point	280.7ºC
Vapor pressure	0.11 mm Hg ( 180 °C)
Refractive index	1.5000 (estimate)
Storage temp.	Store below +30°C.
Form	Powder

Existing product reference data. Confirm the specification of the offered grade before ordering.

Applications by polymer

Reactive flame retardant for polyol synthesis
Unsaturated polyester resin fire retardancy
Epoxy resin flame retardant intermediate
Flexible polyurethane foam fire protection
Electrical laminate and PCB flame retardant
Adhesive and coating fire resistance additive
Bromine-based reactive FR intermediate

Tetrabromophthalic anhydride(TBPA) application image from the existing record

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