For procurement managers and R&D scientists in the chemical and materials industries, achieving robust fire safety in polymer-based products is paramount. High-purity Antimony Trioxide (Sb2O3) stands out as a critical component in achieving this goal, particularly when integrated into synergistic flame retardant systems. As a leading manufacturer and supplier, we understand the demand for reliable, high-performance additives.

Antimony Trioxide, with its CAS number 1309-64-4, is an inorganic compound renowned for its efficacy as a flame retardant synergist. While Sb2O3 itself possesses limited flame retardant properties, its true power is unleashed when combined with halogenated compounds, such as brominated or chlorinated organic substances. This synergistic interaction is key to developing advanced flame-retardant materials that meet stringent safety standards. When exposed to heat, the antimony trioxide reacts with the halogenated compounds to form antimony halides. These halides then operate through multiple mechanisms to inhibit combustion:

  • Gas Phase Radical Trapping: The antimony halides interrupt the radical chain reactions that propagate flames in the gas phase, effectively quenching the fire.
  • Gas Phase Sealing: They can form a barrier that limits the supply of oxygen to the flame.
  • Solid Phase Char Formation: In the solid phase, antimony compounds can promote the formation of a stable char layer. This char acts as both a physical barrier to oxygen and heat, and an insulating layer, further reducing flammability.

The primary advantage for a purchasing manager looking to buy Sb2O3 powder is its cost-effectiveness and high performance when used in the correct formulation. We supply industrial-grade Antimony Trioxide with a high purity of 99.8%, ensuring consistent and predictable results for your formulations. This makes it an indispensable additive for a wide array of applications, including:

  • Plastics and Rubber: Widely used in PVC, PP, PE, PS, ABS, and PU to impart flame retardancy to products like electrical enclosures, automotive components, and construction materials.
  • Textiles and Chemical Fibers: Incorporated into fabrics to create flame-retardant clothing, upholstery, and industrial textiles.
  • Paints and Coatings: Used as a retardant in paints and coatings to improve their fire resistance.
  • Glass and Ceramics: Functions as a clarifying agent in glass manufacturing and in ceramic glazes.

As a dedicated manufacturer and supplier of Antimony Trioxide in China, we are committed to providing high-quality products that empower your R&D and production processes. If you are seeking a reliable source for Sb2O3 powder to enhance the fire safety of your materials, we encourage you to connect with us for competitive pricing and technical support. Buying Antimony Trioxide from a trusted supplier ensures the integrity and performance of your end products.