Description

Antimony trioxide, often used as a flame retardant Catalyst, is known for its versatility and effectiveness. Commonly known as ATO, Pure Grade, CAS: 1309-64-4.

DESCRIPTION: It is a white, odorless, crystalline powder used as a flame retardant agent, in pigments and ceramics, in staining steel and copper, as a catalyst for plastic fibers, and to bleach glass.

  APPLICATIONS:

• Plastic Compounding – PVC, PE, PP, HIPS, and EVA applications, Used in PVC, polystyrene, and polyethylene to reduce flammability. Antimony trioxide is common in cable insulation, roofing membranes, and automotive plastics.
• Textile Finishing – Uniforms, curtains, and technical fabrics, using it enhances fire resistance in curtains, upholstery, and uniforms.
• Electronics Manufacturing – Circuit boards, enclosures, wire jackets , Integrated into circuit boards, housings, and casings to meet flame-retardant standards.
• Glass & Ceramics – As a clarifying and fining agent, this compound acts as a fining agent in glass production to remove bubbles.
• Pigments – Base for antimony-based pigment formulations, used in combination with other materials to produce antimony-based pigments
• Catalyst for Chemical Reactions-In the polyester and PET industries, Antimony Trioxide serves as a catalyst to accelerate polymerization.

   

  Chemical Properties and Specifications

  • Chemical Formula: Sb₂O₃

  • Molecular Weight: 291.5 g/mol

  • Melting Point: 656°C

  • Solubility: Insoluble in water, soluble in acids, which is typical for antimony trioxide.

  • Appearance: White crystalline powder

  These properties ensure high-performance efficiency and reliable flame resistance, making antimony trioxide a preferred additive for many industries.

Technical Specifications