CH4 (g) + 2 H2S (g) → CS2 (l) + 4 H2 (g)

This is an oxidation-reduction (redox) reaction:

C-IV - 8 e- → CIV (oxidation)

8 HI + 8 e- → 8 H0 (reduction)

Reactants:

  • CH4 – Methane source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Carbane (never recommended) source: wikipedia, accessed: 2019-09-27
    • Other names: M source: wikipedia, accessed: 2019-09-27, Arsh gas|Natural gas|Carbon tetrahydride|Hydrogen carbide}} source: wikipedia, accessed: 2019-09-27, CH4 source: wikidata, accessed: 2019-09-02
    • Appearance: Colorless gas source: wikipedia, accessed: 2019-09-27; Colourless odourless compressed or liquefied gas source: ICSC, accessed: 2019-09-04
  • H2S – Hydrogen sulfide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Other names: D source: wikipedia, accessed: 2019-09-27, Ihydrogen monosulfide|Dihydrogen sulfide|Sewer gas|Sulfane|Sulfurated hydrogen|Sulfureted hydrogen|Sulfuretted hydrogen|Sulfur hydride|Hydrosulfuric acid|Hydrothionic acid|Thiohydroxic acid|Sulfhydric acid}} source: wikipedia, accessed: 2019-09-27, Hydrosulfuric acid source: wikidata, accessed: 2019-09-02source: NIOSH NPG, accessed: 2019-09-02
    • Appearance: Colorless gas source: wikipedia, accessed: 2019-09-27; Colourless compressed liquefied gas with characteristic odour of rotten eggs source: ICSC, accessed: 2019-09-04; 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.] source: NIOSH NPG, accessed: 2019-09-02

Products:

  • CS2 – Methanedithione source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Other names: Carbon disulfide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Carbon bisulfide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Carbon disulphide source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Appearance: Colorless liquid | Impure: light-yellow source: wikipedia, accessed: 2019-09-27; Colourless liquid with characteristic odour source: ICSC, accessed: 2019-09-04; Colorless to faint-yellow liquid with a sweet ether-like odor. [Note: Reagent grades are foul smelling.] source: NIOSH NPG, accessed: 2019-09-02
  • H2
    • Names: Dihydrogen source: wikidata, accessed: 2019-09-07, Hydrogen source: ICSC, accessed: 2019-09-04source: wikidata, accessed: 2019-09-07, H2 source: wikidata, accessed: 2019-09-07
    • Appearance: Odourless colourless compressed gas source: ICSC, accessed: 2019-09-04