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This series focuses on antimony-based flame-retardant functional materials, covering four product grades: colloidal antimony pentoxide, antimony pentoxide powder, sodium antimonate and sodium pyroantimonate. They find broad application in flame-retardant plastics, engineering resins, textile coatings, rubber and composite materials.
The comparison below outlines core characteristics, typical applications and key selection indicators to support procurement decisions.
| Product Form | Key Characteristics | Typical Applications | Critical Selection Parameters |
| Colloidal antimony pentoxide | Nanoscale dispersed particles; high synergistic efficiency with halogen-based flame retardants at low loading levels | High-end flame-retardant coatings, thin films, fine-denier fibres | Solids content, pH value, colloidal particle size (D50), viscosity and system compatibility |
| Antimony pentoxide powder | High-purity oxide powder; self-dispersible or amenable to further processing | Engineering plastics, rubber, flame-retardant masterbatches | Purity ($Sb_2O_5$ content), particlesize distribution (D50), whiteness and impurity control |
| Sodium antimonate / Sodium pyroantimonate | Inorganic antimonate salts with outstanding thermal stability and good compatibility with multiple polymers | Polyester, engineering plastics, glass-ceramic flame-retardant systems | Maincomponent content, free alkali / free acid, moisture content and bulk density |
We assist customers in identifying the optimal product grade according to their formulation and processing conditions (e.g. extrusion temperature, dispersion method, carrier resin). Samples and basic formulation suggestions are offered to minimise trial-and-error costs.
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