Arsenic trioxide

As2O3CAS 1327-53-3197.84 g/mol

O2−O2−O2−As3+As3+

Properties

Molecular formula
As2O3
Molar mass
197.84 g/mol
Exact mass
197.8279 Da
Density
3.7–4.2 g/mL
Melting point
275–313 °C
Boiling point
460 °C
logP
-1.12Crippen estimate
Polar surface area
85.5 Ų
H-bond donors / acceptors
0 / 0
Rotatable bonds
0

Hazards

No GHS classification is on file for this compound. That is not evidence that it is harmless. Search the SDS library

Identifiers

CAS number
1327-53-3
SMILES
[O-2].[O-2].[O-2].[As+3].[As+3]
InChIKey
QTLQKAJBUDWPIB-UHFFFAOYSA-N
InChI
InChI=1S/2As.3O/q2*+3;3*-2

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Names and synonyms

15 names · show all
  • Arsenic oxide (As2O3)
  • Arsenic sesquioxide
  • Arsenous oxide
  • White arsenic
  • Arsenous anhydride
  • Arsodent
  • Diarsenic trioxide
  • Arsenious oxide
  • Arsenicum album
  • Arsenic sesquioxide (As2O3)
  • Arsenic oxide (AsO1.5)
  • Arsenious trioxide
  • Trisenox
  • Arsenic(III) trioxide
  • Trisonex

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Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue. All similar compounds

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