3 Cu3AsO3 + 23 HNO3 → 9 Cu(NO3)2 + 3 H3AsO4 + 5 NO + 7 H2O
This is an oxidation-reduction (redox) reaction:
9 CuI - 9 e- → 9 CuII (oxidation)
3 AsIII - 6 e- → 3 AsV (oxidation)
5 NV + 15 e- → 5 NII (reduction)
Cu3AsO3 is a reducing agent, Cu3AsO3 is a reducing agent, HNO3 is an oxidizing agent.
Reactants:
- Cu3AsO3
- HNO3 – Nitric acid
- Other names: Aqua fortis , Spirit of niter , Eau forte
- Appearance: Colorless, yellow or red fuming liquid ; Colourless-to-yellow liquid with pungent odour ; Colorless, yellow, or red, fuming liquid with an acrid, suffocating odor. [Note: Often used in an aqueous solution. Fuming nitric acid is concentrated nitric acid that contains dissolved nitrogen dioxide.]
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