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Product details
Antimony trioxide is a widely used additive flame retardant for polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyester, epoxy resin, polyurethane and other plastics. When used alone, the flame retardant effect is low, and phosphate esters, chlorine-containing compounds (such as chlorinated paraffins, PCBs, perchloro garrison cyclodecane, etc.), bromine-containing compounds (such as hexabromobiphenyl, hexabromobenzene) and use, there is a good synergistic effect, flame retardant performance is significantly improved.
Antimony trioxide and chloride or bromide and generate antimony chloride or antimony bromide, they are reactive and volatile substances, in the solid state can promote the movement of halogens and the generation of carbides, in the gaseous state can capture free radicals, these reactions contribute to flame retardancy.
It is often used with zinc oxide and sodium hydroxide as a co-efficient of bromine flame retardants in plastic fire protection systems. Antimony trioxide can be used in the manufacture of antimony potassium tartrate, pigments, porcelain glazes, mordants and so on. It is also used as a catalyst in polyester polycondensation.
Flame Retardant Industry: Used synergistically with halogenated flame retardants to enhance fire resistance of plastics, rubbers and textiles
Glass Manufacturing: Acts as refining agent and decolorizer in specialty glass production
Ceramic Industry: Used in glaze formulations to improve product performance
Electronics: Applied in circuit board flame retardant treatment
Chemical Sector: Serves as raw material for producing other antimony compounds
Uses of Antimony Trioxide.
Used as flame retardant for various resins, synthetic rubber, canvas, paper, paint, etc., catalyst for petrochemical and synthetic fibre. Used in the manufacture of mordant, emulsifier, is the raw material for the synthesis of antimony salt. Used as additive in enamel industry to increase the opacity and surface gloss of enamel. It is used as decolourant instead of arsenite in glass industry. Medicine, metallurgy, military industry, etc.
Excellent inorganic white pigment, mainly used for colouring paints. Used as flame retardant for various resins, synthetic rubber, canvas, paper, paint, etc., catalyst for petrochemical and synthetic fibre. Used in the manufacture of mordant, emulsion, is the raw material for the synthesis of antimony salt. Used in enamel industry to increase the opacity and surface gloss of enamel. It is used as decolouring agent instead of arsenite in glass industry.
| Parameter | Industrial Grade | Electronic Grade | Remarks |
|---|---|---|---|
| Purity | ≥99% | ≥99.5% | Electronic grade has lower impurities |
| Particle Size | 1-5μm | 0.5-2μm | Electronic grade is finer |
| Heavy Metals | <100ppm | <50ppm | Complies with RoHS |
| Moisture | <0.5% | <0.2% | Electronic grade is drier |
FAQ.
Q: Is antimony trioxide carcinogenic?
A: IARC classifies it as Group 2B (possibly carcinogenic) based on inhalation studies in rats.
Q: Can it be replaced in flame retardants?
A: Emerging alternatives include aluminum hypophosphite and organic phosphinates.
Product Methods of Antimony Trioxide.
There are dry and wet methods. The dry method is the method of producing products from antimony ore or antimony metal by roasting and oxidising. Wet method is antimony ore or antimony metal using liquid phase method and acid reaction method to produce products. Dry antimony ore (Sb2S3) is calcined at 1000°C in the presence of coke. The antimony trioxide vapour generated by oxidation is collected, condensed, and reduced with coke by heating to produce antimony metal using soda ash as a flux. The resulting antimony metal is then oxidised in air to obtain antimony trioxide.
Product Safety and Compliance Details
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