2 HIO4 + 7 H2S → 7 S + I2 + 8 H2O
This is an oxidation-reduction (redox) reaction:
7 S-II - 14 e- → 7 S0 (oxidation)
2 IVII + 14 e- → 2 I0 (reduction)
H2S is a reducing agent, HIO4 is an oxidizing agent.
Reactants:
- HIO4
- 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.]
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