4 S (s) + CH4 (g) → 2 H2S (g) + CS2 (l)
This is an oxidation-reduction (redox) reaction:
4 S0 + 8 e- → 4 S-II (reduction)
C-IV - 8 e- → CIV (oxidation)
S is an oxidizing agent, CH4 is a reducing agent.
Reactants:
Products:
- 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.]
- CS2 – Methanedithione