8 K2CrO7 + 9 H2S + 11 H2SO4 → 4 Cr2(SO4)3 + 8 K2SO4 + 20 H2O
This is an oxidation-reduction (redox) reaction:
9 S-II - 72 e- → 9 SVI (oxidation)
8 CrXII + 72 e- → 8 CrIII (reduction)
H2S is a reducing agent, K2CrO7 is an oxidizing agent.
Reactants:
- K2CrO7
- 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.]
- H2SO4 – Sulfuric acid
Products:
Warning: Unknown compound 'K2CrO7'