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Diantimony Trioxide Cas 1309-64-4

Antimony trioxide is the earliest flame retardant used, often used with other flame retardants and smoke suppressants, and synergistic effects can be generated between each component

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Product Details

Chemical Name: Diantimony trioxide

Synonyms: Antimony(III) oxide; Antimony trioxide

Molecular Structure:

Product Typical Properties

Items Specification
CAS No 1309-64-4
Molecular Formula Sb2O3
Molecular Weight 291.52
Appearance White powder
Sb2O3 99.9%
As 0.0072%
Pb 0.0041%
Fe 0.0007%
Cu 0.0011%
Se 0.0003%
Bi 0.0004%
Cd 0.0001%


Product Usage

Antimony trioxide is a widely used additive flame retardant, which is suitable for general flame retardant of polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyester, epoxy resin, polyurethane and other plastics. When used alone, the flame retardant effect is low. When used together with phosphate esters, chlorinated compounds (such as chlorinated paraffins, polychlorinated biphenyls, and perchloroshiocyclodecane), and brominated compounds (such as hexabromobiphenyl and hexabromobenzene), the flame retardant effect is improved significantly.


Product Packaging



Product Storage

Please store in a dry, cool and dark place


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