Antimony Trioxide (CAS 1309-64-4) is a compound that, while not always visible, is integral to the safety and performance of numerous manufactured goods. NINGBO INNO PHARMCHEM CO.,LTD. supplies this vital chemical, understanding its multifaceted role in industry.

Chemically, Antimony Trioxide is an amphoteric oxide, appearing as a white powder. It is generally insoluble in water and ethanol but soluble in concentrated hydrochloric acid, sulfuric acid, and strong alkali solutions. Its melting point is approximately 656°C, with a boiling point around 1570°C. These properties, especially its behavior at high temperatures, are key to its function as a flame retardant synergist. While it can exhibit some flame-retardant properties on its own, its true value is realized when combined with halogenated compounds. This synergistic effect is critical for achieving the highest levels of fire safety in various materials.

The primary function of Antimony Trioxide is to enhance the effectiveness of other flame retardants. When a material containing an antimony-halogen system is exposed to fire, Antimony Trioxide reacts with the halogen to form volatile antimony halides. These halides interfere with the gas-phase combustion reactions by trapping radicals, thus quenching the flame. Additionally, they can promote the formation of a protective char layer on the material's surface. This char acts as an insulating barrier, preventing heat and oxygen from reaching the underlying polymer and thereby slowing down or stopping combustion. This makes Antimony Trioxide for PVC, and other polymers like PP and ABS, a crucial component in meeting fire safety standards.

The industrial applications for Antimony Trioxide are extensive. It is heavily relied upon in the plastics industry for products such as wire and cable jacketing, electronic equipment enclosures, and automotive interior components. The textile sector also utilizes it for imparting flame resistance to fabrics. Its presence ensures that materials meet strict flammability requirements, contributing to product safety in consumer and industrial goods alike. NINGBO INNO PHARMCHEM CO.,LTD. provides high-purity Antimony Trioxide, understanding the critical nature of its applications and the need for consistent quality. For businesses requiring this essential chemical, exploring the supply and purchase options with NINGBO INNO PHARMCHEM CO.,LTD. is a step towards ensuring product safety and compliance.