4 CrCl2 + 2 NO + 4 HCl → 4 CrCl3 + N2 + 2 H2O
This is an oxidation-reduction (redox) reaction:
2 NII + 4 e- → 2 N0 (reduction)
4 CrII - 4 e- → 4 CrIII (oxidation)
NO is an oxidizing agent, CrCl2 is a reducing agent.
Reactants:
- CrCl2 – Chromium(II) chloride
- NO – Nitrogen monoxide , Oxidonitrogen(•) (additive)
- HCl – Chlorane , Hydrogen chloride
- Other names: Hydrochloric acid , M , Uriatic acid
- Appearance: Colorless, transparent liquid, fumes in air if concentrated ; Colorless gas ; Colourless compressed liquefied gas with pungent odour ; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]
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