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Sodium chloride
From Wikipedia, the free encyclopedia
Sodium chloride, forby kent as saut, common saut, table saut or halite, is an ionic compound wi the formula NaCl, representin equal proportions o sodium an chlorine.[2] Sodium chloride is the saut maist responsible for the salinity o the ocean an o the extracellular fluid of mony multicellular organisms. As the major ingredient in edible saut, it is commonly uised as a condiment an fuid preservative.
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Quick Facts Names, Identifiers ...
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Names | |||
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IUPAC name
Sodium chloride | |||
Ither names
Common salt Halite | |||
Identifiers | |||
CAS Nummer |
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3D model (JSmol) |
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Beilstein Reference |
3534976 | ||
ChEBI | |||
ChEMBL | |||
ChemSpider |
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EC Nummer | 231-598-3 | ||
Gmelin Reference | 13673 | ||
KEGG |
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MeSH | Sodium+chloride | ||
PubChem CID |
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RTECS nummer | VZ4725000 | ||
UNII | |||
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SMILES
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Properties | |||
NaCl | |||
Molar mass | 58.44 g mol−1 | ||
Appearance | Colorless crystals | ||
Odour | Odorless | ||
Density | 2.165 g cm−3 | ||
Meltin pynt | 801 °C (1,474 °F; 1,074 K) | ||
Bylin pynt | 1,413 °C (2,575 °F; 1,686 K) | ||
Solubility in watter |
359 g L−1 | ||
Solubility in ammonia | 21.5 g L−1 | ||
Solubility in methanol | 14.9 g L−1 | ||
Refractive index (nD) | 1.5442 (at 589 nm) | ||
Structur | |||
Cubic (see text), cF8 | |||
Space group | Fm3m, No. 225 | ||
Lattice constant |
a = 564.02 pm | ||
Coordination geometry |
Octahedral (Na+) Octahedral (Cl−) | ||
Thermochemistry | |||
Speceefic heat capacity, C | 36.79 J K−1 mol−1 | ||
Staundart molar entropy S |
72.11 J K−1 mol−1 | ||
Std enthalpy o formation ΔfH |
−411.12 kJ mol−1 | ||
Hazards | |||
NFPA 704 | ![]()
0
1
0 | ||
Lethal dose or concentration (LD, LC): | |||
LD50 (Median dose) |
3000–8000 mg/kg (oral in rats, mice, rabbits)[1] | ||
Relatit compoonds | |||
Ither anions |
Sodium fluoride Sodium bromide Sodium iodide | ||
Ither cations |
Lithium chloride Potassium chloride Rubidium chloride Caesium chloride | ||
Except whaur itherwise notit, data are gien for materials in thair staundart state (at 25 °C [77 °F], 100 kPa). | |||
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Infobox references | |||
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