Tetrabromobisphenol A bis(dibromopropyl ether) CAS 21850-44-2

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Product Description:

Tetrabromobisphenol A bis(dibromopropyl ether), often abbreviated as TBBPA-DBPE, is a brominated flame retardant (BFR). It is a complex molecule characterized by a high bromine content, which contributes to its effectiveness in inhibiting combustion in various polymeric materials. This additive flame retardant is typically a white or off-white powder. It is incorporated into plastics and resins to reduce their flammability and delay the spread of fire, thereby enhancing the safety of products in applications such as electronics, construction materials, and textiles. Due to its chemical structure, it offers good thermal stability and compatibility with a range of polymers.

Tetrabromobisphenol A bis(dibromopropyl ether) CAS 21850-44-2

Product Properties:

Property Value

Chemical Name

Tetrabromobisphenol A bis(2,3-dibromopropyl ether)

Common Abbreviation

TBBPA-DBPE, TBBPA bis(DBPE)

CAS Number

21850-44-2

Molecular Formula

C₂₁H₂₀Br₈O₂ (approximate, can vary slightly with specific isomer)

Molecular Weight

Approx. 943.6 g/mol

Appearance

White to off-white powder

Bromine Content

High (typically >70% by weight)

Solubility

Generally insoluble in water; soluble in some organic solvents like aromatic hydrocarbons and chlorinated solvents

Melting Point

Typically in the range of 80-120 °C (can vary based on purity and mixture)

Key Characteristics

Additive flame retardant, high bromine content, good thermal stability

Primary Use

Flame retardant for plastics and polymers

Product Usage:

  • Plastics and Polymers:

    • Polyolefins: Widely used in polypropylene (PP) and polyethylene (PE) to impart flame retardancy for applications like packaging, automotive parts, and consumer goods. For example, in PP films or injection-molded PE components.

    • Styrenic Polymers: Incorporated into high-impact polystyrene (HIPS), acrylonitrile butadiene styrene (ABS), and expanded polystyrene (EPS) used in electronic housings, appliances, and insulation. For instance, in computer casings or television enclosures.

    • Engineering Plastics: Used in some engineering thermoplastics like polyamides (nylons) and polyesters (e.g., PBT) for electrical connectors and automotive applications.

  • Textiles and Coatings:

    • Back-coatings for Fabrics: Applied to textiles used in upholstery, curtains, and industrial fabrics to meet flammability standards.

  • Adhesives and Sealants:

    • Can be incorporated into certain adhesive and sealant formulations to improve their fire resistance.

  • Rubber Products:

    • Used in some synthetic rubber formulations to reduce flammability.

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