HNO2 + HCN → H2CN + NO2
This is an oxidation-reduction (redox) reaction:
CII + e- → CI (reduction)
NIII - 1 e- → NIV (oxidation)
HCN is an oxidizing agent, HNO2 is a reducing agent.
Reactants:
- HNO2 – Nitrous acid , Hydroxidooxidonitrogen
- HCN – F , Ormonitrile (substitutive)|Hydridonitridocarbon (additive)}}
- Other names: Hydrogen cyanide , Ormic anammonide|Hydrocyanic acid|Prussic acid|Methanenitrile , Hydrogen cyanide, liquefied
- Appearance: Colorless liquid or gas ; Colourless gas or liquid with characteristic odour ; Colorless or pale-blue liquid or gas (above 78°F) with a bitter, almond-like odor. [Note: Often used as a 96% solution in water.]
Products:
- H2CN
- NO2 – Nitrogen dioxide
- Other names: Nitrogen(IV) oxide , Deutoxide of nitrogen , Nitrogen peroxide
- Appearance: Brown gas ; Reddish-brown gas or brown or yellow liquid with pungent odour ; Yellowish-brown liquid or reddish-brown gas (above 70°F) with a pungent, acrid odor. [Note: In solid form (below 15°F) it is found structurally as N2O4.]