ABSTRACT
Formula: H2S; MW 34.08; CAS [7783-06-4]; occurs in natural gas and sewer gas; formed when metal sul des react with dilute mineral acids; colorless gas with rotten egg odor; lique es at −60.2°C; solidi es at 85.5°C; slightly soluble in water (4000 mg/L at 20°C); aqueous solution unstable, absorbs oxygen and decomposes to sulfur; highly toxic and ammable.
