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Antimony trioxide information


Antimony(III) oxide
Antimony(III) oxide
Names
IUPAC name
Antimony(III) oxide
Other names
Antimony sesquioxide
Antimonous oxide
Flowers of Antimony
Identifiers
CAS Number
  • 1309-64-4 checkY
3D model (JSmol)
  • Interactive image
ChemSpider
  • 25727 checkY
ECHA InfoCard 100.013.796 Edit this at Wikidata
EC Number
  • 215-474-6
KEGG
  • C19192 checkY
PubChem CID
  • 14794
RTECS number
  • CC5650000
UNII
  • P217481X5E checkY
CompTox Dashboard (EPA)
  • DTXSID4023880 Edit this at Wikidata
InChI
  • InChI=1S/3O.2Sb checkY
    Key: ADCOVFLJGNWWNZ-UHFFFAOYSA-N checkY
  • InChI=1/3O.2Sb/rO3Sb2/c1-4-3-5-2
    Key: ADCOVFLJGNWWNZ-VTKDZCJOAA
SMILES
  • O=[Sb]O[Sb]=O
Properties
Chemical formula
Sb2O3
Molar mass 291.518 g/mol
Appearance white solid
Odor 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
370±37 μg/L between 20.8 °C and 22.9 °C
Solubility soluble in acid
Magnetic susceptibility (χ)
−69.4×10−6 cm3/mol
Refractive index (nD)
2.087, α-form
2.35, β-form
Structure
Crystal structure
cubic (α) < 570 °C
orthorhombic (β) > 570 °C
Coordination geometry
pyramidal
Dipole moment
zero
Hazards
GHS labelling:
Pictograms
GHS08: Health hazard[1]
Signal word
Warning[1]
Hazard statements
H351[1]
Precautionary statements
P281[1]
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Lethal dose or concentration (LD, LC):
LD50 (median dose)
7000 mg/kg, oral (rat)
NIOSH (US health exposure limits):
PEL (Permissible)
TWA 0.5 mg/m3 (as Sb)[2]
REL (Recommended)
TWA 0.5 mg/m3 (as Sb)[2]
Related compounds
Other anions
Antimony trisulfide
Antimony triselenide
Antimony telluride
Other cations
Dinitrogen trioxide
Phosphorus trioxide
Arsenic trioxide
Bismuth trioxide
Related compounds
Diantimony tetraoxide
Antimony pentoxide
Supplementary data page
Antimony trioxide (data page)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)
Infobox references

Antimony(III) oxide is the inorganic compound with the formula Sb2O3. It is the most important commercial compound of antimony. It is found in nature as the minerals valentinite and senarmontite.[3] Like most polymeric oxides, Sb2O3 dissolves in aqueous solutions with hydrolysis. A mixed arsenic-antimony oxide occurs in nature as the very rare mineral stibioclaudetite.[4][5]

  1. ^ a b c d Record of Antimony trioxide in the GESTIS Substance Database of the Institute for Occupational Safety and Health, accessed on 23 August 2017.
  2. ^ a b NIOSH Pocket Guide to Chemical Hazards. "#0036". National Institute for Occupational Safety and Health (NIOSH).
  3. ^ Greenwood, N. N.; & Earnshaw, A. (1997). Chemistry of the Elements (2nd Edn.), Oxford:Butterworth-Heinemann. ISBN 0-7506-3365-4.
  4. ^ "Stibioclaudetite".
  5. ^ "List of Minerals". 21 March 2011.

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Antimony trioxide

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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...

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Antimony

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Antimony trioxide is a prominent additive for halogen-containing flame retardants. Antimony is used as a dopant in semiconductor devices. Antimony is...

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Trioxide

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SO3 Tellurium trioxide, TeO3 Tungsten trioxide, WO3 Uranium trioxide, UO3 Xenon trioxide, XeO3 Antimony trioxide, Sb2O3 Arsenic trioxide, As2O3 Bismuth(III)...

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Antimony trichloride

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butter of antimony. Antimony trichloride is prepared by reaction of chlorine with antimony, antimony tribromide, antimony trioxide, or antimony trisulfide...

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Antimony tribromide

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tribromide may be made by the reaction of antimony with elemental bromine, or by the reaction of antimony trioxide with hydrobromic acid. Alternatively, it...

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Antimony pentoxide

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hydrolysis of antimony pentachloride; or by acidification of potassium hexahydroxoantimonate(V). It may also be prepared by oxidation of antimony trioxide with...

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Antimony oxide

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Antimony oxide may refer to any of the following: Diantimony tetroxide, Sb2O4 Antimony trioxide, Sb2O3 Antimony pentoxide, Sb2O5 Antimony hexitatridecoxide...

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Antimony trisulfide

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Antimony trisulfide (Sb2S3) is found in nature as the crystalline mineral stibnite and the amorphous red mineral (actually a mineraloid) metastibnite....

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Metalloid

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systems. Arsenic trioxide is used in the glass industry as a decolourizing and fining agent (for the removal of bubbles), as is antimony trioxide. Tellurium...

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Antimonite

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to a salt of antimony(III), such as NaSb(OH)4 and NaSbO2 (meta-antimonite), which can be prepared by reacting alkali with antimony trioxide, Sb2O3. These...

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Phosphorus trioxide

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Phosphorus trioxide is the chemical compound with the molecular formula P4O6. Although the molecular formula suggests the name tetraphosphorus hexoxide...

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Polyethylene terephthalate

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temperature. Antimony (Sb) is a metalloid element that is used as a catalyst in the form of compounds such as antimony trioxide (Sb2O3) or antimony triacetate...

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Antimony potassium tartrate

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study their diets. Antimony potassium tartrate is prepared by treating a solution of potassium hydrogen tartrate and antimony trioxide: 2 KOH + Sb2O3 +...

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Arsenic trioxide

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Arsenic trioxide is an inorganic compound with the formula As 2O 3. As an industrial chemical, its major uses include the manufacture of wood preservatives...

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Aluminium antimonide

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the antimonide (Sb3−) ion. It burns to produce aluminium oxide and antimony trioxide. Gallium antimonide Indium antimonide Aluminium arsenide K Seeger...

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Antimony triiodide

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equal. It may be formed by the reaction of antimony with elemental iodine, or the reaction of antimony trioxide with hydroiodic acid. Alternatively, it may...

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Antimony trifluoride

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than related compounds AsF3 and SbCl3. SbF3 is prepared by treating antimony trioxide with hydrogen fluoride: Sb2O3 + 6 HF → 2 SbF3 + 3 H2O The compound...

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Nonmetal

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comprised among the metals, by others among non-metallic bodies." While antimony trioxide is usually listed as being amphoteric its very weak acid properties...

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Flame retardant

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with a synergist to enhance their efficiency. Antimony trioxide is widely used, but other forms of antimony such as the pentoxide and sodium antimonate...

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List of inorganic compounds

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sulfate – Sb2(SO4)3 Antimony trichloride – SbCl3 Antimony trifluoride – SbF3 Antimony trioxide – Sb2O3 Antimony trisulfide – Sb2S3 Antimony pentasulfide –...

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Antimony tetroxide

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Antimony tetroxide is an inorganic compound with the formula Sb2O4. This material, which exists as the mineral cervantite, is white but reversibly yellows...

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Antimony oxychloride

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A. V. (1981). "Physiochemical analysis of antimony trioxideantimony trichloride, antimony trioxideantimony tribromide systems". Zhurnal Neorganicheskoi...

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Glass of antimony

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indicating that its sulfur was evaporated. The remaining substance (antimony trioxide) was then vitrified in a wind furnace, and stirred with an iron rod...

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Polyglycolide

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catalyzed using different catalysts, including antimony compounds, such as antimony trioxide or antimony trihalides, zinc compounds (zinc lactate) and...

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List of alchemical substances

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part of white lead to three of barium sulfate. BaSO4 Flowers of antimonyantimony trioxide, formed by roasting stibnite at high temperature and condensing...

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Valentinite

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was familiar with the synthetic preparation of antimony trioxide, which was called 'the antimony flower'.[citation needed] Valentinite was first described...

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Polymer stabilizer

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Examples include brominated compounds along with aluminium hydroxide, antimony trioxide, and various organophosphates. Flame retardants are known to reduce...

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