mädamunalõhnaga mürgine värvuseta kergesti veelduv gaas; keemiline valem H2S; vees lahustudes moodustab nõrga vesiniksulfiidhappe
Looduses leidub vesiniksulfiidi peamiselt nafta- ja maagaasimaardlates, vulkaanilises gaasis ja mineraalvees.
a chemical compound with the formula H2S; a colorless chalcogen-hydride gas; it is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs
The British English spelling of this compound is hydrogen sulphide, a spelling no longer recommended by the Royal Society of Chemistry or the International Union of Pure and Applied Chemistry.
