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Arsenic trioxide

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Arsenic trioxide

Molecular formula: As2O3 CAS# 1327-53-3
Categories: Oxide
PubChem CID: 518740
Names
English:
Arseneous anhydride
Arseneous oxide
Arseni trioxydum
Arsenic sesquioxide
Arsenic trioxide
Arsenic(III) oxide
Arsenic, white
Arsenicum album
Arsenious Acid Anhydride
Arsenious trioxide
Arsentrioxide
Poison flour
Trisenox
White arsenic

Variants of the formula:

As2O3
O//As\O/As\\O
As_(x-1.2,y.3)O_(x1.6,y-1.2)As_(A-130)O_#1_(x1.2,y.3)O_#3
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent

Reactions in which Arsenic trioxide is involved

  • As2O3 + 3SnCl2 + 6HCl -> 2As + 3SnCl4 + 3H2O
  • 2HNO3"(50%)" + As2O3 -> NO2"|^" + NO"|^" + 2HAsO3
  • 2HNO3 + As2O3 + 2H2O -> 2H3AsO4 + N2O3
  • 3As2O3 + 4HNO3 + 7H2O -> 4NO"|^" + 6H3AsO4
  • As2O3 + 4HNO3 + H2O -> 4NO2"|^" + 2H3AsO4