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Selenium trioxide

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Selenium trioxide

Molecular formula: O3Se CAS# 13768-86-0
Categories: Oxide
PubChem CID: 115128 | ChemSpider ID: 103019
Names
English:
EINECS:237-385-1
Selenium oxide (SeO3)
Selenium oxide (SeO3)(6CI,7CI,8CI,9CI)
Selenium trioxide [Wiki]
Selenium trioxide (SeO3)
Seleniumtrioxide
oxoselane dioxide(IUPAC)
Русский:
Окись селена
Триоксид селена [Wiki]
German:
Selen(VI)-oxid
Selensäureanhydrid
Selentrioxid [Wiki]
العربية:
ثلاثي أكسيد السيلينيوم [Wiki]
ثلاثي أكسيد سيلينيوم(IUPAC)
Italiano:
Triossido di selenio [Wiki]
日本語:
三酸化セレン [Wiki]
酸化セレン(VI)(IUPAC)
Português:
Trióxido de selênio [Wiki]
中文:
三氧化硒 [Wiki]

Variants of the formula:

SeO3
O//Se`|O|\\O
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent

Reactions in which Selenium trioxide is involved

  • SeO3 + H2O -> H2SeO4
  • 2SeO3 ">185^oC"--> 2SeO2 + O2"|^"
  • SeO3 + 2{M}OH -> {M}2SeO4 + H2O , where M = Na K Li Rb
  • SeO3 + 2HCl "0^oC"--> H2SeO3 + Cl2"|^"
  • SO3 + K2SeO4 -> K2SO4 + SeO3