Antimony Oxide sputtering target - Sb2O3

Purity---
99.99％

Shape---
Discs, Plate, Step,Rectangle, Sheet

Dimension---
Discs, Plate, Step (Dia ≤480mm,Thickness≥1mm)
Rectangle, Sheet, Step (Length ≤410mm, Width ≤310mm, Thickness ≥1mm)

Property---

Application---
Coating

Antimony(III) oxide is an amphoteric oxide, it dissolves in aqueous sodium hydroxide solution to give the meta-antimonite NaSbO2, which can be isolated as the trihydrate. Antimony(III) oxide also dissolves in concentrated mineral acids to give the corresponding salts, which hydrolyzes upon dilution with water.With nitric acid, the trioxide is oxidized to antimony(V) oxide.

When heated with carbon, the oxide is reduced to antimony metal. With other reducing agents such as sodium borohydride or lithium aluminium hydride, the unstable and very toxic gas stibine is produced.When heated with potassium bitartrate, a complex salt potassium antimony tartrate, KSb(OH)2•C4H2O6 is formed.

The structure of Sb2O3 depends on the temperature of the sample. Dimeric Sb4O6 is the high temperature (1560°C) gas. Sb4O6 molecules are bicyclic cages, similar to the related oxide of phosphorus(III), phosphorus trioxide. The cage structure is retained in a solid that crystallizes in a cubic habit. The Sb-O distance is 197.7 pm and the O-Sb-O angle of 95.6°. This form exists in nature as the mineral senarmontite. Above 606 °C, the more stable form is orthorhombic, consisting of pairs -Sb-O-Sb-O- chains that are linked by oxide bridges between the Sb centers. This form exists in nature as the mineral valentinite.

Basic Infomation

CAS Registry Number:1309-64-4

ChemSpider:25727

KEGG:C19192

RTECS number:CC5650000

UNII:P217481X5E

Chemical formula:Sb2O3

Molar mass:291.518 g/mol

Appearance:white solid, odorless

Density:5.2 g/cm3, α-form

5.67 g/cm3 β-form

Melting point:656 °C (1,213 °F; 929 K)

Boiling point:1,425 °C (2,597 °F; 1,698 K) (sublimes)

Solubility in water: Dissolved concentration of 370 ± 37 µg/L was obtained with a loading of 10 mg/L after 7 days of exposure. Temperature varied between 20.8°C (t=0; start of the test) and 22.9°C

Solubility:soluble in acid

Refractive index (nD): 2.087, α-form

2.35, β-form

Crystal structure: cubic (α)<570 °C

orthorhombic (β) >570 °C

Coordination geometry:pyramidal

Dipole moment: zero