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CAS 7446-08-4

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Selenium dioxide

Description:
Selenium dioxide (SeO2) is a chemical compound characterized by its molecular structure, where selenium is in a +4 oxidation state. It appears as a white or yellowish crystalline solid and is known for its hygroscopic nature, meaning it readily absorbs moisture from the air. Selenium dioxide is soluble in water, forming selenous acid, and it can also dissolve in organic solvents. This compound is primarily used in organic synthesis, particularly in the oxidation of alcohols to carbonyl compounds and in the preparation of selenium-containing materials. It exhibits toxic properties, necessitating careful handling due to its potential health hazards, including respiratory irritation and other systemic effects upon exposure. Additionally, selenium dioxide can act as a Lewis acid, participating in various chemical reactions. Its reactivity and ability to form various selenium compounds make it an important substance in both industrial and laboratory settings. Proper safety measures should be observed when working with selenium dioxide to mitigate its toxic effects.
Formula:O2Se
InChI:InChI=1S/O2Se/c1-3-2
InChI key:InChIKey=JPJALAQPGMAKDF-UHFFFAOYSA-N
SMILES:[Se](=O)=O
Synonyms:
  • Dioxido De Selenio
  • Dioxyde de selenium
  • Nsc 56753
  • Selen(Iv)-Oxid
  • Selendioxid
  • Selenium (Iv) Oxide
  • Selenium Dioxide
  • Selenium oxide (SeO<sub>2</sub>)
  • Selenium oxide (SeO2)
  • ED 30 (oxide)
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