Английская Википедия:Chromium(II) oxide

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Шаблон:Chembox Chromium(II) oxide (CrO) is an inorganic compound composed of chromium and oxygen.[1] It is a black powder that crystallises in the rock salt structure.[2] Hypophosphites may reduce chromium(III) oxide to chromium(II) oxide:

H3PO2 + 2 Cr2O3 → 4 CrO + H3PO4

It is readily oxidized by the atmosphere. CrO is basic, while Шаблон:Chem2 is acidic, and Шаблон:Chem2 is amphoteric.[3]

CrO occurs in the spectra of luminous red novae, which occur when two stars collide. It is not known why red novae are the only objects that feature this molecule; one possible explanation is an as-yet-unknown nucleosynthesis process.[4]

See also

References

Шаблон:Reflist

Шаблон:Chromium compounds Шаблон:Oxides

Шаблон:Inorganic-compound-stub

  1. Шаблон:Citation
  2. Egon Wiberg, Arnold Frederick Holleman (2001) Inorganic Chemistry, Elsevier Шаблон:ISBN
  3. Chemistry 7th edition, by Raymond Chang page 645 (problem 15.100)
  4. Шаблон:Cite journal