Description

Tetrabromophthalic Anhydride is a halogenated aromatic compound that serves as a highly effective flame retardant intermediate. Its primary commercial value lies in its ability to impart significant fire resistance to polymers and plastics without compromising their structural integrity. This product is essential for manufacturers in the electronics, construction, and automotive industries seeking to meet stringent fire safety regulations. We supply high-purity grades to ensure optimal performance in your formulations.

Application

• As a reactive intermediate in the synthesis of brominated epoxy resins and polycarbonates for printed circuit boards.
• Production of flame-retardant additives for high-impact polystyrene (HIPS), polyethylene terephthalate (PET), and unsaturated polyesters.
• Key raw material in manufacturing tetrabromobisphenol A (TBBPA) derivatives.
• Used in the formulation of fire-resistant coatings, paints, and sealants for construction materials.
• Imparts flame retardancy to engineering plastics used in automotive components and electrical connectors.
• Employed in research and development of novel polymeric materials with enhanced thermal stability.

Basic Information

Product Name	Tetrabromophthalic Anhydride
CAS No.	632-79-1
Molecular Formula	C8Br4O3
Molecular Weight	463.69 g/mol
Synonyms	TBPA; 3,4,5,6-Tetrabromophthalic Anhydride; Tetrabromo-1,3-isobenzofurandione; 1,3-Isobenzofurandione, 3,4,5,6-tetrabromo-; NSC 404107; Phthalic Anhydride, Tetrabromo-; Tetrabromophthalic Acid Anhydride
EINECS	211-185-6

Quality Control

Our Tetrabromophthalic Anhydride is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, bromine content, and melting point. Certificates of Analysis (COA) documenting these results are provided to guarantee batch-to-batch consistency and supply reliability for your production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from strong acids, bases, and organic solvents. Recommended storage temperature is between 15°C and 25°C. Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.5%
Melting Point	275 - 280 °C
Bromine Content	68.5 - 69.5 %
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.