Antimony trioxide (Sb₂O₃) is a white crystalline powder that is the most commercially significant compound of antimony. It is primarily used as a flame retardant in various materials, including plastics, textiles, and coatings. This compound is produced by roasting antimony ores or by oxidizing antimony metal. Antimony trioxide has a high melting point of 656°C and a boiling point of...