3 Sb2S3 + 28 HNO3 + 4 H2O → 6 H3SbO4 + 28 NO + 9 H2SO4
This is an oxidation-reduction (redox) reaction:
9 S-II - 72 e- → 9 SVI (oxidation)
28 NV + 84 e- → 28 NII (reduction)
6 SbIII - 12 e- → 6 SbV (oxidation)
Sb2S3 is a reducing agent, HNO3 is an oxidizing agent, Sb2S3 is a reducing agent.
Reactants:
- Sb2S3 – Diantimony trisulfide antimony(III) sulfide
- 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.]
- H2O – Water, oxidane
Products: