Väävelvesiniku

Väävelvesiniku, also known as hydrogen sulfide, is a chemical compound with the formula H2S. It is a colorless gas with a characteristic foul odor of rotten eggs. This odor is detectable even at very low concentrations. Väävelvesiniku is flammable and can form explosive mixtures with air. It is also highly toxic.

In nature, väävelvesiniku is produced by the decomposition of organic matter containing sulfur. This occurs in environments such as swamps, sewers, and volcanic gases. It is also produced by certain bacteria. Industrially, it can be a byproduct of petroleum refining and natural gas processing.

Väävelvesiniku has several applications. It is used in the production of sulfuric acid, a vital industrial chemical. It is also employed in the purification of metals and in the synthesis of various sulfur-containing organic compounds. However, due to its toxicity, its handling and use require strict safety precautions. Exposure to väävelvesiniku can cause a range of health effects, from irritation of the eyes and respiratory system at low concentrations to unconsciousness and death at higher concentrations. The gas can paralyze the olfactory nerve, meaning that at dangerous levels, the smell may no longer be perceived.