Cl2
Chlorine gas · Dichlorine, Molecular chlorine
Cl2 is a reactive, semiconducting diatomic gas that serves as a vital building block in industrial chemistry.
About Chlorine gas
Cl2 is a diatomic molecule consisting of two chlorine atoms bonded together. As a thermodynamically stable species situated on the convex hull, it represents a fundamental state of the element under standard conditions. Its electronic character is defined as semiconducting, reflecting the unique bonding nature of this halogen gas.
This compound is a cornerstone of modern chemical manufacturing, serving as a primary precursor for a vast array of synthetic processes. Its high reactivity makes it an indispensable reagent for producing polymers, disinfectants, and various organic chemical intermediates used globally.
Key Properties
Cross-validated computational properties for Chlorine gas, 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 Cl2.
Applications
Where Chlorine gas is used.
Frequently Asked Questions
Common questions about Chlorine gas, answered from cross-validated data.
What is Cl2?
Cl2 is a reactive, semiconducting diatomic gas that serves as a vital building block in industrial chemistry.
What is Cl2 used for?
What is the band gap of Cl2?
Is Cl2 a metal, semiconductor, or insulator?
Is Cl2 thermodynamically stable?
How many polymorphs of Cl2 are known?
How is Cl2 synthesized?
What elements does Cl2 contain?
Where does the data for Cl2 come from?
How It Compares
As a fundamental diatomic halogen, Cl2 serves as the primary reference point for its elemental class, representing the baseline for reactivity and structural stability in molecular halogens.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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