Antimony(V) oxide (Sb2O5)-Powder

Characteristic

Antimony pentoxide (molecular formula: Sb₂O₅) is a chemical compound of antimony and oxygen. It always occurs in hydrated form, Sb₂O₅·nH₂O. It contains antimony in the +5 oxidation state.

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

Application

Antimony pentoxide 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 and adhesives.

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.

Sb2O5-MSDS.pdf