Tetrabromophthalic anhydride

Tetrabromophthalic anhydride is a high-purity catalysts-auxiliary-agent supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.

1. Flame Retardant

TBPA is widely used as a reactive flame retardant in:

Polyester resins

Epoxy resins

Polyamides

It chemically bonds to polymer chains, making it less likely to migrate or volatilize compared to additive flame retardants.

Suitable for electrical laminates, circuit boards, construction materials, and automotive plastics.

2. Intermediate for Polymeric Flame Retardants

Serves as a starting material for the synthesis of halogenated flame retardant polymers such as brominated polyesters and polyimides.

3. Electronics and Electrical Components

Commonly used in printed circuit boards (PCBs) and plastic housings for electrical devices where stringent flammability standards are required.

4. Polyurethane Foams

Incorporated in the production of flame-retarded rigid and flexible polyurethane foams, commonly used in insulation and cushioning applications.

5. Resins and Varnishes

Used in modifying alkyd, phenolic, or epoxy resins to impart flame resistance without compromising mechanical properties or chemical resistance.

🔥 Superior Flame Retardancy

TBPA is rich in bromine (Br), contributing effectively to flame inhibition by releasing bromine radicals during combustion that suppress flame propagation.

🔗 Reactive Incorporation

It reacts into the polymer structure (as an anhydride), ensuring durable flame resistance with reduced environmental leaching or emissions.

🧪 Versatile Chemistry

Compatible with multiple types of thermosetting and thermoplastic systems, offering flexibility in product design.

🌍 Regulatory Compliance

As a reactive flame retardant, it can help manufacturers meet flammability standards like UL 94 V-0, while reducing potential exposure concerns associated with non-reactive brominated additives.

Tetrabromophthalic anhydride (CAS 632-79-1) is a high-performance flame retardant favored in applications requiring permanent, chemically bound fire resistance. Its bromine-rich structure and reactive anhydride functionality make it ideal for integrating into polymers used in electronics, automotive, construction, and consumer goods. TBPA supports fire safety regulations while enabling durable performance, making it a critical component in the formulation of modern flame-retarded materials.

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