2 K2CrO7 + 9 H2S + 5 H2SO4 → 2 K2SO4 + Cr2(SO4)3 + 9 S + 14 H2O
This is an oxidation-reduction (redox) reaction:
9 S-II - 18 e- → 9 S0 (oxidation)
2 CrXII + 18 e- → 2 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'