Stopping the thermal decomposition reaction under gas. ![]() Typically, it combines with halogenated compounds to create chemical compounds with flame retardant properties. However, when combined with other compounds, it acts as a synergist. In its physical state, antimony trioxide has no flame-retardant properties. It is added to certain flame retardants, making them efficient in consumer products such as textiles, upholstered furniture, children’s products, and plastics. Uses of Antimony Trioxide Flame RetardancyĪ significant amount of antimony trioxide produced annually goes to enhance flame retardancy. A more stable orthorhombic form with pairs of Sb-O chains is discovered if the compound is exposed to temperatures below 606 ☌. This cage structure is maintained in a cubic habit. The Sb 4O 6 molecules appear as bicyclic cages that look the same as related oxides of phosphorous trioxide and phosphorous (III). For instance, dimeric Sb 4O 6 is discovered under high temperatures. The antimony trioxide structure varies depending on the temperature of the sample. The substance is only soluble with hydrolysis, where it forms an aqueous solution. The boiling point is 1425☌, and the melting point is 1425☌. ![]() The inorganic compound has a density of 5.7 g cm 3 and a vapor density of 10 (air = 1). Physical & Chemical Properties of Antimony Oxide The compound is also known as Atox B, Atox E, Antimony white, Flowers of Antimony, Blue star RG, and Antimony (III) oxide. It is gray or white and exists in a cubic crystalline form. Antimony trioxide is one of the essential compounds of antimony. When antimony reacts with air through heating, it forms an inorganic compound known as antimony trioxide.
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