Antimony tetroxide
Antimony tetroxide is an inorganic compound with the formula Sb2O4. This material, which exists as the mineral cervantite, is white but reversibly yellows upon heating. The material, with empirical formula SbO2, is called antimony tetroxide to signify the presence of two kinds of Sb centers.
α-Sb2O4 | |
| Names | |
|---|---|
| IUPAC name
antimony(III,V) oxide | |
| Identifiers | |
| ECHA InfoCard | 100.014.161 |
PubChem CID |
|
| UNII | |
CompTox Dashboard (EPA) |
|
| Properties | |
| SbO2; Sb2O4 | |
| Molar mass | 153.7588; 307.5176 g/mol |
| Appearance | white solid |
| Density | 6.64 g/cm3 (orthorhombic form) |
| Melting point | > 930 °C (1,710 °F; 1,200 K) (decomposes) |
| Boiling point | decomposes |
| insoluble | |
Refractive index (nD) |
2.0 |
| Structure | |
| orthorhombic | |
| Hazards | |
| NFPA 704 (fire diamond) |
2
1
0 |
| NIOSH (US health exposure limits): | |
PEL (Permissible) |
TWA 0.5 mg/m3 (as Sb) |
REL (Recommended) |
TWA 0.5 mg/m3 (as Sb) |
| Related compounds | |
Related compounds |
Antimony trioxide Antimony pentoxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
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