PH3 (g) + 8 AgNO3 (aq) + 4 H2O (l) → 8 Ag (s) + 8 HNO3 (aq) + H3PO4 (aq)
This is an oxidation-reduction (redox) reaction:
P-III - 8 e- → PV (oxidation)
8 AgI + 8 e- → 8 Ag0 (reduction)
PH3 is a reducing agent, AgNO3 is an oxidizing agent.
Reactants:
Products:
- 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.]
- H3PO4