H2SO4 + 8 HY → 4 H2O + H2S + 4 Y2
This is an oxidation-reduction (redox) reaction:
SVI + 8 e- → S-II (reduction)
8 H-I - 16 e- → 8 HI (oxidation)
8 YI + 8 e- → 8 Y0 (reduction)
H2SO4 is an oxidizing agent, HY is a reducing agent, HY is an oxidizing agent.
Reactants:
Products:
- H2O – Water, oxidane
- H2S – Hydrogen sulfide
- Other names: D
, Ihydrogen monosulfide|Dihydrogen sulfide|Sewer gas|Sulfane|Sulfurated hydrogen|Sulfureted hydrogen|Sulfuretted hydrogen|Sulfur hydride|Hydrosulfuric acid|Hydrothionic acid|Thiohydroxic acid|Sulfhydric acid}}
, Hydrosulfuric acid
- Appearance: Colorless gas
; Colourless compressed liquefied gas with characteristic odour of rotten eggs
; Colorless gas with a strong odor of rotten eggs. [Note: Sense of smell becomes rapidly fatigued & can NOT be relied upon to warn of the continuous presence of H2S. Shipped as a liquefied compressed gas.]
- Other names: D
- Y2