What is the future development of antimony trioxide?

Release time:

2024-03-12 08:42

Antimony trioxide is an inorganic compound with the chemical formula Sb2O3. Natural products called antimony, commonly known as antimony white, white crystalline powder. Melting point 655 ℃. Boiling point 1550 ℃. Soluble in sodium hydroxide solution, hot tartaric acid solution, bitartrate solution and sodium sulfide solution, slightly soluble in water 370±37 μg/L, dilute nitric acid and dilute sulfuric acid. There is a carcinogenic possibility. There are two kinds of preparation methods, dry and wet, which are mainly used for white pigments, paints and plastics, and can play the role of pigments and flame retardants.


Antimony trioxide Sb2O3, also known as antimony white, is widely used as an auxiliary flame retardant for various synthetic materials because of its excellent synergistic flame retardant effect when combined with halogen flame retardants. Polyvinyl chloride itself is a halogen-containing polymer, which makes the application of antimony trioxide in flame retardant PVC plastics special and more common.

Antimony trioxide is mainly used as a flame retardant component of synthetic materials. In addition, it can also be used as a high-grade glass clarifying agent for picture tubes, fluorescent tubes, coatings, pigment additives (to improve water resistance, color persistence and flame retardant), heat-resistant colorants and glaze agents for enamel, ceramics, glass, alkaline dye mordant, petrochemical and synthetic fiber industry catalysts and raw materials for the manufacture of antimony salts.

Antimony trioxide is one of the general flame retardant synergistic agents. It is used as an additive flame retardant. When used alone, the flame retardant effect is very small (unless the flame retardant polymer already contains halogen). When used in combination with halogen flame retardant, the efficiency of halogen flame retardant can be greatly improved. It is a general flame retardant for polyethylene, polypropylene, polyvinyl chloride, polyester, polystyrene, epoxy resin, polyurethane and other plastics.

Antimony trioxide

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