CAS No.7647-14-5 Sodium chloride

Sodium chloride

Identification
Name Sodium chloride
CAS Registry Number 7647-14-5
Synonyms
Molecular Structure Sodium chloride   7647-14-5
Molecular Formula ClNa
Molecular Weight

CAS 7647-14-5 Wiki / 7647-14-5 MSDS

Sodium chloride
Halit-Kristalle.jpg
NaCl polyhedra.png
Names
IUPAC name
Sodium chloride
Other names
  • Common salt
  • Halite
  • Rock salt
  • Saline
  • Sodium chloride
  • Table salt
  • Regular salt
  • Sea salt
Identifiers
CAS Number
  • 7647-14-5 YesY
3D model (Jmol)
  • Interactive image
Beilstein Reference
3534976
ChEBI
  • CHEBI:26710 YesY
ChemSpider
  • 5044 YesY
ECHA InfoCard 100.028.726
EC Number 231-598-3
Gmelin Reference
13673
KEGG
  • D02056 YesY
MeSH Sodium+chloride
PubChem CID
  • 5234
RTECS number VZ4725000
UNII
  • 451W47IQ8X YesY
Properties
Chemical formula
NaCl
Molar mass 58.44 g mol−1
Appearance Colorless crystals
Odor Odorless
Density 2.165 g/cm3
Melting point 801 °C (1,474 °F; 1,074 K)
Boiling point 1,413 °C (2,575 °F; 1,686 K)
Solubility in water
359 g/L
Solubility in ammonia 21.5 g/L
Solubility in methanol 14.9 g/L
Magnetic susceptibility (χ)
−30.3·10−6 cm3/mol
Refractive index (nD)
1.5442 (at 589 nm)
Structure
Crystal structure
Face-centered cubic
(see text), cF8
Space group
Fm3m, No. 225
Lattice constant
a = 564.02 pm
Coordination geometry
Octahedral (Na+)
Octahedral (Cl)
Thermochemistry
Specific
heat capacity (C)
36.79 J K−1 mol−1
Std molar
entropy (So298)
72.11 J K−1 mol−1
Std enthalpy of
formation (ΔfHo298)
−411.12 kJ mol−1
Pharmacology
ATC code
A12CA01 (WHO) B05CB01 (WHO), B05XA03 (WHO), S01XA03 (WHO)
Hazards
Safety data sheet See: data page
NFPA 704
Flammability code 0: Will not burn. E.g., waterHealth code 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g., sodium chlorideReactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogenSpecial hazards (white): no codeNFPA 704 four-colored diamond
0
0
0
Lethal dose or concentration (LD, LC):
LD50 (median dose)
3 g/kg (oral, rats)[1]
Related compounds
Other anions
Sodium fluoride
Sodium bromide
Sodium iodide
Sodium astatide
Other cations
Lithium chloride
Potassium chloride
Rubidium chloride
Caesium chloride
Francium chloride
Supplementary data page
Structure and
properties
Refractive index (n),
Dielectric constant (εr), etc.
Thermodynamic
data
Phase behaviour
solid–liquid–gas
Spectral data
UV, IR, NMR, MS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Sodium chloride /ˌsdiəm ˈklɔːrd/,[2] also known as salt or halite, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chloride ions. With molar masses of 22.99 and 35.45 g·mol−1, respectively, 100 g of NaCl contain 39.34 g Na and 60.66 g Cl. Sodium chloride is the salt most responsible for the salinity of seawater and of the extracellular fluid of many multicellular organisms. In the form of edible or table salt it is commonly used as a condiment and food preservative. Large quantities of sodium chloride are used in many industrial processes, and it is a major source of sodium and chlorine compounds used as feedstocks for further chemical syntheses. A second major application of sodium chloride is de-icing of roadways in sub-freezing weather.