Na2S
sodium sulfide · disodium sulfide
Sodium sulfide is a stable, semiconducting inorganic compound widely used as a reactive chemical precursor in industrial and laboratory settings.
About sodium sulfide
Sodium sulfide is a thermodynamically stable inorganic compound that serves as a fundamental building block in chemical synthesis. Its semiconducting electronic character makes it an interesting subject for materials research and industrial processing applications. The compound is well-characterized, with a significant number of structural configurations documented across major materials databases. Its stability on the convex hull underscores its reliability as a precursor in various chemical reactions and material development pathways. This compound plays a vital role in industrial chemistry, particularly in processes requiring efficient sulfur delivery and reactive inorganic components. Its ability to maintain structural integrity under diverse conditions allows it to be utilized effectively in manufacturing and specialized chemical production.
Key Properties
Cross-validated computational properties for sodium sulfide, aggregated across 3 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 Na2S.
Applications
Where sodium sulfide is used.
Frequently Asked Questions
Common questions about sodium sulfide, answered from cross-validated data.
What is Na2S?
Sodium sulfide is a stable, semiconducting inorganic compound widely used as a reactive chemical precursor in industrial and laboratory settings.
What is Na2S used for?
What is the band gap of Na2S?
Is Na2S a metal, semiconductor, or insulator?
Is Na2S thermodynamically stable?
How many polymorphs of Na2S are known?
How is Na2S synthesized?
What elements does Na2S contain?
Where does the data for Na2S come from?
How It Compares
As a primary inorganic sulfide, this compound serves as a foundational reference point for the study of alkali metal chalcogenides. It occupies a central role in the class of simple binary sulfides, providing a benchmark for stability and electronic behavior against which more complex or doped sulfide materials are often evaluated.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
Analyze Na2S in the Lattice Graph platform
Polymorph comparison, confidence scoring, supply-chain risk, and patent monitoring — across 53 integrated data sources.
Explore the Platform →