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Sb2O5·nH2O. Antimony(V) Oxide

Antimony Pentoxide Powder 1314-6-9

Antimony Pentoxide (molecular formula: Sb2O5) is yellowish powder with cubic crystals, a chemical compound of antimony and oxygen. It always occurs in hydrated form, Sb2O5·nH2O. Antimony(V) Oxide or Antimony Pentoxide is a highly insoluble thermally stable Antimony source. It is used as a Flame retardant in clothing and suitable for glass, optic and ceramic applications.

Antimony pentoxide Properties

Other names Antimony(V) Oxide
Cas No. 1314-6-9
Chemical formula Sb2O5
Molar mass 323.517 g/mol
Appearance yellow, powdery solid
Density 3.78 g/cm3, solid
Melting point 380 °C (716 °F; 653 K) (decomposes)
Solubility in water 0.3 g/100 mL
Solubility insoluble in nitric acid
Crystal structure cubic
Heat capacity (C) 117.69 J/mol K

 

Reactions for Antimony Pentoxide Powder

When heated at 700°C the yellow hydrated pentoxide converts to an anhydrous white solid with a formula Sb2O13 containing both Sb(III) and Sb(V). Heating at 900°C produces a white insoluble powder of SbO2 of both α and β forms. The β form consists of Sb(V) in octahedral interstices and pyramidal Sb(III) O4 units. In these compounds, Sb(V) atom is octahedrally coordinated to six –OH groups.

 

Enterprise Standard of Antimony Pentoxide Powder

Symbol Sb2O5 Na2O Fe2O3 As2O3 PbO H2O(Absorbed Water) Average Particle(D50) Physical Characteristics
UMAP90 ≥90% ≤0.1% ≤0.005% ≤0.02% ≤0.03% or or as requirements ≤2.0% 2~5µm or as requirements Light Yellow Powder
UMAP88 ≥88% ≤0.1% ≤0.005% ≤0.02% ≤0.03% or or as requirements ≤2.0% 2~5µm or as requirements Light Yellow Powder
UMAP85 85%~88% - ≤0.005% ≤0.03% ≤0.03% or or as requirements - 2~5µm or as requirements Light Yellow Powder
UMAP82 82%~85% - ≤0.005% ≤0.015% ≤0.02% or or as requirements - 2~5µm or as requirements White Powder
UMAP81 81%~84% 11~13% ≤0.005% - ≤0.03% or or as requirements ≤0.3% 2~5µm or as requirements White Powder

Packaging Details: Net weight of the cardboard barrel lining is 50~250KG or follow the customer’s requirements

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

 

What is Antimony Pentoxide Powder used for?

Antimony Pentoxide is used as a Flame retardant in clothing. It finds use as a flame retardant in ABS and other plastics and as a flocculant in the production of titanium dioxide, and is sometimes used in the production of glass, paint. It is also used as an ion exchange resin for a number of cations in acidic solution including Na+ (especially for their selective retentions), and as a polymerization and oxidation catalyst.

 

 
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