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Chlorine

Chlorine is a chemical element; it has symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them.

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Key facts & relationships

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35Cl
75.8%
36Cl
trace
37Cl
24.2%
Appearance
pale yellow-green gas
at T (K)
128
Atomic number (Z)
17

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Overview

History

Properties

Chemistry and compounds

Occurrence

Production

Applications

Biological role

Hazards

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Map overview Semantic statistics

Chlorine

Nodes400
Edges399
Triples320
Avg. degree2
Density0.005
Components1

How this topic connects Entity context

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Chlorine

Top relations

related to Early discoveries · 26
Chlorine → Abu Bakr, Although, Another, Arabic, Around, Brabantian, Cremona, De, Discovery, Geber, Gerard, Hayyan, Helmont, However, II, Jabir, Jan Baptist, Latin, On, On Alums
has application · 21
Chlorine → About, AlCl3, AsCl3, BiCl3, Cl2O, HCl, HOCl, NaClO3, Other, PCl3, PCl5, POCl3, PVC, Quantitatively, SbCl3, SbCl5, SiCl4, SnCl4, Sodium, The
related to Later uses · 21
Chlorine → Antoine-Germain Labarraque, Berthollet, Berthollet's, Charles Tennant, Chemische Fabrik Griesheim, Claude Berthollet, Eau, Elemental, France, French, Germany, In, Javel, Modern, Near, Paris, Scottish, Smith, The, These
related to Chlorine fluorides · 20
Chlorine → CF3, Cl2F, ClCN, ClF, ClN3, ClNCO, ClOSO2F, ClSCN, ClSO2F, COFCl, It, Its, NH, OH, RCF2NCl2, RCN, SO2, SO3, Some, The
related to External links · 20
Chlorine → Agency, AlternativesNational Pollutant Inventory, Chlorine PageChlorine Institute Archived, ChlorineElectrolytic, ChlorineNational Institute, Disease Registry, Environmental Considerations, Eurochlor, European, Health, Nottingham, Occupational Safety, Online, Production Using Mercury, The Periodic Table, Toxic Substances, Trade, University, Videos, Wayback Machine
related to Properties · 17
Chlorine → All, As, Br, Cl, Conversely, Corresponding, Fluorine, It, Its, Like, Ne, Specifically, The, This, Thus, Waals, X2
related to Other binary chlorides · 15
Chlorine → Br2, Chlorides, Chlorination, Cl2, Even, For, MoBr3, MoCl5, NCl3, Nearly, The, These, This, XeCl2, XeCl4
related to Organochlorine compounds · 14
Chlorine → Alkanes, Aryl, Chlorination, Cl, Due, Formally, Friedel-Crafts, However, Lewis, Like, PCl5, SOCl2, The, UV
related to Occurrence · 12
Chlorine → All, Along, Dead Sea, Earth's, Great Salt Lake, In, Israel, It, Small, The, This, Utah
related to Chemistry and compounds · 10
Chlorine → As, At, Br, Chlorination, Cl, Given, However, O2/H2O, This, X2/X

Important terminology Word statistics

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Important terminology

chloride water gas used sodium produced compounds acid hydrogen fluorine chemical may form element also oxygen elemental first bromine hypochlorite

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Chlorine35Cl75.8%1.00infobox
Chlorine36Cltrace1.00infobox
Chlorine37Cl24.2%1.00infobox
ChlorineAppearancepale yellow-green gas1.00infobox
Chlorineat T (K)1281.00infobox
ChlorineAtomic number (Z)171.00infobox
ChlorineBlockp-block1.00infobox
ChlorineBoiling point(Cl2) 239.11 K ​(−34.04 °C, ​−29.27 °F)1.00infobox
ChlorineCAS NumberCl2: 7782-50-51.00infobox
ChlorineCovalent radius102±4 pm1.00infobox
ChlorineCritical point416.9 K, 7.991 MPa1.00infobox
ChlorineCrystal structure​orthorhombic (oS8)1.00infobox
ChlorineDensity (at STP)3.2 g/L1.00infobox
ChlorineDiscovery and first isolationCarl Wilhelm Scheele (1774)1.00infobox
ChlorineElectrical resistivity>10 Ω⋅m (at 20 °C)1.00infobox
ChlorineElectron configuration[Ne] 3s2 3p51.00infobox
ChlorineElectronegativityPauling scale: 3.161.00infobox
ChlorineElectrons per shell2, 8, 71.00infobox
ChlorineGroupgroup 17 (halogens)1.00infobox
ChlorineHeat of fusion(Cl2) 6.406 kJ/mol1.00infobox
ChlorineHeat of vaporisation(Cl2) 20.41 kJ/mol1.00infobox
ChlorineIonisation energies1st: 1251.2 kJ/mol1.00infobox
ChlorineIonisation energies2nd: 2298 kJ/mol1.00infobox
ChlorineIonisation energies3rd: 3822 kJ/mol1.00infobox
ChlorineIonisation energies(more)1.00infobox
ChlorineLattice constantsa = 630.80 pm b = 455.83 pm c = 815.49 pm (at triple point)1.00infobox
ChlorineMagnetic orderingdiamagnetic1.00infobox
ChlorineMain isotopes.mw-parser-output .isotopes-table{text-align:center;width:100%;border-collapse:collapse;margin:0;padding:0}.mw-parser-output .isotopes-table-headers>:not(:first-child){padding:0…1.00infobox
ChlorineMelting point(Cl2) 171.6 K ​(−101.5 °C, ​−150.7 °F)1.00infobox
ChlorineMolar heat capacity16.9745 J/(mol·K) (Cl) 33.949 J/(mol·K) (Cl2)1.00infobox

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