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Arsenic trioxide

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Arsenic trioxide

Molecular formula: As2O3 CAS# 1327-53-3
Categories: Oxide
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
Русский:
Оксид мышьяка(3)
Оксид мышьяка(III)
триоксид мышьяка
German:
Arsen(III)-oxid
Arsenigsäureanhydrid
Arsenik
Arsentrioxid
Diarsentrioxid
العربية:
أكسيد الزرنيخ الثلاثي
French:
Anhydride arsénieux
Arsenic blanc
Oxyde d'arsenic (III)
Trioxyde d'arsenic
Italiano:
Ossido arsenioso
triossido di arsenico
triossido di diarsenico
日本語:
三酸化二ヒ素
中文:
三氧化二砷
亞砷酸酐
氧化砷(Ⅲ)
砒霜
鶴頂紅

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