2 KOH + H2S → 2 H2O + K2S
This is an acid-base reaction (neutralization): KOH is a base, H2S is an acid.
- KOH – Potassium hydroxide
- H2S – Hydrogen sulfide
- Other names: Dihydrogen monosulfide , Dihydrogen sulfide , Sewer gas
- 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.]
- H2O – Water, oxidane
- K2S – Potassium sulfide