Chromium(II) oxide
Jump to navigation
Jump to search
Template: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 Template:Chem2 is acidic, and Template: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
Template:Chromium compounds Template:Oxides
- ↑ Script error: No such module "citation/CS1".
- ↑ Egon Wiberg, Arnold Frederick Holleman (2001) Inorganic Chemistry, Elsevier Template:ISBN
- ↑ Chemistry 7th edition, by Raymond Chang page 645 (problem 15.100)
- ↑ Script error: No such module "Citation/CS1".