Colloidal Antimony Pentoxide

Colloidal Antimony Pentoxide is made through a simple method based on reflux oxidization system. UrbanMines has detaily investigated about the effects of experimental parameters on the colloid stability and size distribution of the final products are carried out. We specialize in offering colloidal antimony pentoxide in a wide range of grades developed for specific applications. The particle size ranges from 0.01-0.03nm up to 5 nm for the sols.
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    Milk-white or Light Yellow
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Colloid Antimony Pentoxide 

Synonyms: Antimony Pentoxide Colloidal, Aqueous Colloidal Antimony Pentoxide

Molecular formula: Sb2O5·nH2O   
Liquid stat, milk-white or light yellow colloid  colloidal solution

PH 5~8
Stability Very High
Colour Milky White
Viscosity greater than 100 centipoises
Specific Gravity 1.6 to 1.7

Advantages about Antimony Pentoxide Colloidal 
Better penetration of the substrate.
Less pigmenting or whitening effect for deep mass tone colors
Easier handling and processing. Liquid dispersions will not clog spray guns. 
Translucency for coatings, films and laminates.
Easy compounding; no special dispersing equipment required. 
High FR efficiency for minimal added weight or change in hand.

Enterprise Standard of Colloid Antimony Pentoxide 




Sb2O5  WT.%



 Amtimony  WT.%












Primary Particle Size(nm)











ivory-white or light yellow gel

Specific Gravity(20℃)



Packaging Details: To be packed in the plastic barrel. 25kgs/Barrel,200~250kgs/Barrel or according to the customers’ requirement.

Storage and transportation: 

Warehouse, vehicles and containers should be kept clean, dry, free of moisture, heat and be separated from alkaline matters.

What is Aqueous Colloidal Antimony Pentoxide used for?

1. Used as a synergist with halogenated flame retardants in textiles, adhesives, coatings and water-based systems.
2. Used as flame retardant in the copper clad laminate、polyester resin,epoxy resin and phenolic resin.
3. Used as fire retardant in carpets, curtains, sofa-covers, tarpaulin and high-grade wool fabrics.
4.Used as Metals’ passivator in the Oil refining industry, mazut and residual oil’s catalytic cracking and the process of catforming.

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