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Give us a call +86 -755-25432352
Email us info@urbanmines.com
Come & visit us Block A, FuHai Technopark, HuaFeng Smart Valley, YongFu Rd, BaoAn,Shenzhen,China
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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