AsH3 + 6 AgNO3 + 3 H2O → H3AsO3 + 6 Ag + 6 HNO3
This is an oxidation-reduction (redox) reaction:
As-III - 6 e- → AsIII (oxidation)
6 AgI + 6 e- → 6 Ag0 (reduction)
AsH3 is a reducing agent, AgNO3 is an oxidizing agent.
Reactants:
- AsH3 – Arsenic trihydride , Arsane , Trihydridoarsenic
- AgNO3 – Silver(I) nitrate, Silver nitrate
- H2O – Water, oxidane
Products:
- H3AsO3 – Arsorous acid
- Ag
- 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.]