CAS #
1309-64-4
HS #
28258000
Packaging
25kg Bags/Super Bags/Bulk
Antimony trioxide (ATO) is a white, odorless powder primarily used as a flame retardant synergist. It enhances the fire resistance of plastics, textiles, coatings, and electronics when combined with halogenated compounds. ATO also functions as a catalyst in PET production, a clarifying agent for glass, and an opacifier in ceramics. Its fine particle size and high purity make it an essential additive for fire safety applications.
Product FAQ
Antimony trioxide is widely used across multiple industries due to its flame-retardant and catalytic properties. The plastics and polymers industry utilizes ATO in materials such as PVC, ABS, and polyolefins to improve fire resistance. In textiles and coatings, it is incorporated into fabric treatments and surface coatings to enhance flame resistance. The electronics and wiring sector applies ATO in circuit boards, cables, and insulation materials to improve safety and compliance with fire regulations. Additionally, the glass and ceramics industry relies on it as a fining agent and opacifier in specialty glass production, helping to remove impurities and enhance clarity.
Antimony trioxide plays a critical role in flame-retardant applications and industrial processes. It is a key component in flame retardants, where it acts as a synergist with brominated or chlorinated compounds to enhance fire suppression. As a plastic additive, it improves the fire safety of consumer and industrial plastics. In glass manufacturing, ATO is used to remove bubbles and clarify specialty glass products. It also provides opacity and whiteness in ceramics and pigments, making it a valuable component in ceramic applications. Additionally, ATO serves as a catalyst in PET production, accelerating the polymerization process in the manufacturing of polyethylene terephthalate.
Antimony trioxide is manufactured by roasting antimony-containing ores such as stibnite (Sb₂S₃) in the presence of oxygen. This process produces high-purity ATO, which is then refined and milled into a fine powder suitable for industrial applications. Advanced purification ensures consistent particle size and purity, making it ideal for flame-retardant and specialty applications.
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With years of experience operating in Europe, we source through a network of trusted partners. European products are renowned for their consistent high quality and perfect alignment with U.S. standards. Additionally, shipping from Europe to the U.S. East Coast is more efficient, bypassing the Panama Canal and minimizing logistical complexity.
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