H2S
Hydrogen sulfide · Sulfuretted hydrogen, Hydrosulfuric acid, Dihydrogen monosulfide
Hydrogen sulfide is a stable, wide-gap insulating gas known for its characteristic odor and its importance as a precursor in chemical manufacturing.
About Hydrogen sulfide
Hydrogen sulfide is a colorless, volatile chalcogen hydride that exists as a thermodynamically stable compound. Its electronic character as a wide-gap insulator distinguishes it from more metallic or semi-metallic sulfur-based systems, making it a subject of significant interest in high-pressure physics and chemical research.
With a vast array of reported structures across multiple databases, this compound serves as a fundamental building block in sulfur chemistry. It is widely recognized for its distinct odor and its critical role as a precursor in the production of elemental sulfur and various organosulfur compounds.
Key Properties
Cross-validated computational properties for Hydrogen sulfide, aggregated across 5 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Synthesis Routes
Literature-extracted synthesis procedures targeting H2S.
Applications
Where Hydrogen sulfide is used.
Patent Landscape
50 patents reference H2S or close compositional variants.
| Patent | Title | Assignee | Granted |
|---|---|---|---|
| 11014808 | System for generating H2S in an alkaline medium and method of using the same | — | — |
| 9840675 | System and method for recovering gas containing CO2 and H2S | — | — |
| 11185887 | Acoustic wave H2S sensor comprising a polymer film comprising carboxylate functional groups and lead or zinc c | — | — |
| 10960346 | Composite amine absorbing solution, and device and method for removing CO2 or H2S or both | — | — |
| 9731974 | Integrated process to recover high quality native CO2 from a sour gas comprising H2S and CO2 | — | — |
| 7108842 | Process for the catalytic partial oxidation of H2S using staged addition of oxygen | — | — |
| 8501149 | H2S conversion to sulfur using a regenerated iodine solution | — | — |
| 9901875 | Reclaiming device, method, and recovery unit of CO2, H2S, or both of CO2 and H2S | — | — |
| 11319792 | Processes and systems for high H2S gas processing having reduced sulfur production | — | — |
| 6372193 | Process for oxidizing the H2S contained at low concentration in a gas directly to sulphur by catalytic means a | — | — |
Frequently Asked Questions
Common questions about Hydrogen sulfide, answered from cross-validated data.
What is H2S?
Hydrogen sulfide is a stable, wide-gap insulating gas known for its characteristic odor and its importance as a precursor in chemical manufacturing.
What is H2S used for?
What is the band gap of H2S?
Is H2S a metal, semiconductor, or insulator?
Is H2S thermodynamically stable?
How many polymorphs of H2S are known?
How is H2S synthesized?
What elements does H2S contain?
Where does the data for H2S come from?
How It Compares
As a foundational chalcogen hydride, hydrogen sulfide occupies a unique position in chemical databases due to its extensive structural data and established stability. Unlike more complex or unstable sulfur-based compounds, it remains a primary reference point for understanding hydrogen-sulfur bonding and molecular behavior.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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