H2S is a colourless chalcogen hydride gas with the prevalent foul smell of rotten eggs. It is a poisonous, corrosive, and flammable gas. H2S chemical name is hydrogen sulfide. It is made of hydrogen and sulfur (H2 and S, respectively). The symbol of hydrogen sulfide is H2S. Hydrogen Sulfide Uses - Hydrogen sulfide is used in several industries and is a by-product of many industrial processes including oil refining, mining, tanning, wood pulp processing, food processing, craft paper production, and rayon manufacturing. Ankur Speciality Gases provide H2S Gas with purity 99.9% for your industrials usages.