Sb2O3, or antimony trioxide, is a chemical compound composed of two antimony (Sb) atoms and three oxygen (O) atoms. It is a white, odorless powder commonly used as a flame retardant in various materials, including plastics, textiles, and coatings. Antimony trioxide is also utilized in the production of glass and ceramics, enhancing their properties. In addition to its industrial applications, Sb2O3 plays a role in the manufacturing of certain types of batteries and as a catalyst in chemical reactions. It is important to handle this compound with care, as it can be toxic if ingested or inhaled, necessitating proper safety measures during use.