Difference between revisions of "Antimony trioxide"

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{{Chembox
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Redirect to [[antimony(III) oxide]]
| Name = Antimony Trioxide
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| IUPACName = Antimony(III) oxide
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| SystematicName =
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| OtherNames = {{Unbulleted list
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  | ''Antimony sesquioxide''
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  | ''Antimonous oxide''
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  ...
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  | ''name50''
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| Section1 = {{Chembox Identifiers
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| Abbreviations =
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| SMILES = O=[Sb]O[Sb]=O
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| Section2 = {{Chembox Properties
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| Appearance = White powder
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| BoilingPt = 1425
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| Density = 5.2 g/cm³ α-form, 5.67 g/cm³ β-form
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| Formula = Sb2O3
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| MeltingPt = 656
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| Solubility = 370 ± 37 µg/L
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| SolubleOther = Soluble in acids and bases
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| Coordination = Pyramidal
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| CrystalStruct = cubic (α)<570 °C, orthorhombic (β) >570 °C
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| LD50 = 7000 mg/kg, oral (rat)
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| MainHazards = Carcinogenic
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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 pigment, and as a [[catalyst]].
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==Properties==
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===Chemical===
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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).
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Sb2O3 + 6 HCl → 2 SbCl3 + 3 H2O
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With carbon, antimony trioxide forms elemental antimony.
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2 Sb2O3 + 3 C → 3 CO2 + 4 Sb
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===Physical===
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Antimony trioxide is an odorless, white solid.
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==Availability==
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To do
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==Preparation==
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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.
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==Projects==
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*Pigment
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*Glass and ceramic production
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*Catalyst for polyethylene terephthalate production
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==Handling==
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===Safety===
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Antimony(III) oxide is a suspected carcinogen. It should be handled with care, especially at high temperatures where it tends to sublime.
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===Storage===
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Can be stored in any container. Should be stored away from acid and base vapors.
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===Disposal===
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To do
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==References==
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<references/>
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===Relevant Sciencemadness threads===
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Latest revision as of 14:52, 20 August 2020

Redirect to antimony(III) oxide