English name: Antimony Trioxide Molecular formula: Sb2O3 Grade Standard:Industrial Grade CAS No.:1309-64-4 Density:5.20 Solubility:2.70mg/l Solubility: soluble in HCL and tartaric acid; insoluble in water and acetic acid. Melting point 655 C Boiling point 1425 C. Sublimate when heated to 400 C in high vacuum. vapor pressure: 13.3 hPa (660 C) storage temp: Store below +30 C. Appearance : white superfine powder the crystal structure is mainly cubic crystal Application: 1). Used as white pigment, white glass, enamel, medicine, cement, filler, mordant and fire retardant coating, etc 2). As a flame retardant widely used in plastics, rubber, textile, chemical fiber, pigment, paint, electronics and other industries, but also as a catalyst and production raw materials in the chemical industry 3). As a high purity reagent, mordant and anti light agent, also used in the preparation of pigments and antimony potassium tartrate 4). Used as flame retardant for various resins, synthetic rubber, canvas, paper, paint, etc., 5). A fine inorganic white pigment, mainly used for coloring paints. Used as flame retardant for various resins, synthetic rubber, canvas, paper, paint, etc. 6). Antimony trioxide is a good masking agent and is used as a white paint pigment.