Difference between revisions of "Antimony trioxide"
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| − | Antimony trioxide is an oxide of [[antimony]]. It is used as a flame retardant in combination with halogenated materials, an opacifying agent in [[glass]] and ceramic production, in some special | + | Antimony trioxide is an oxide of [[antimony]]. It is used as a flame retardant in combination with halogenated materials, an opacifying agent in [[glass]] and ceramic production, in some special pigments, and as a [[catalyst]]. |
==Properties== | ==Properties== | ||
Revision as of 14:20, 19 August 2020
| Names | |
|---|---|
| IUPAC name
Antimony(III) oxide
| |
| Identifiers | |
| Jmol-3D images | Image |
| |
| Properties | |
| Sb2O3 | |
| Appearance | White powder |
| Density | 5.2 g/cm³ α-form, 5.67 g/cm³ β-form |
| Melting point | 656 |
| Boiling point | 1425 |
| 370 ± 37 µg/L | |
| Solubility | Soluble in acids and bases |
| Hazards | |
| Lethal dose or concentration (LD, LC): | |
| LD50 (Median dose)
|
7000 mg/kg, oral (rat) |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Antimony trioxide is an oxide of antimony. It is used as a flame retardant in combination with halogenated materials, an opacifying agent in glass and ceramic production, in some special pigments, and as a catalyst.
Contents
Properties
Chemical
Antimony(III) oxide is an amphoteric oxide of antimony. It dissolves in acids to form the corresponding acid salts and in sodium hydroxide to form sodium meta-antimonite (NaSbO2).
Sb2O3 + 6 HCl → 2 SbCl3 + 3 H2O
With carbon, antimony trioxide forms elemental antimony.
2 Sb2O3 + 3 C → 3 CO2 + 4 Sb
Physical
Antimony trioxide is an odorless, white solid.
Availability
To do
Preparation
Antimony trioxide can be prepared by reaction of antimony metal with oxygen at high temperatures. This is best done in a furnace. The product will sublime during the process of making it.
Projects
- Pigment
- Glass and ceramic production
- Catalyst for polyethylene terephthalate production
Handling
Safety
Antimony(III) oxide is a suspected carcinogen. It should be handled with care, especially at high temperatures where it tends to sublime.
Storage
Can be stored in any container. Should be stored away from acid and base vapors.
Disposal
To do
References
Relevant Sciencemadness threads
- Chemical pages without CAS Registry Number
- Articles without EBI source
- Chemical pages without ChemSpiderID
- Chemical pages without DrugBank identifier
- Articles without KEGG source
- Articles without InChI source
- Articles without UNII source
- Articles containing unverified chemical infoboxes
- Chembox articles without image
