Sodium chloride (data page)

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This page provides supplementary chemical data on sodium chloride.

Material safety data sheet[edit]

The handling of this chemical may incur notable safety precautions. It is highly recommended that you seek the material safety data sheet (MSDS) for this chemical from a reliable source such as MSDS Search Engine, and follow its direction.

Structure and properties[edit]

Structure and properties
Index of refraction, nD 1.5442
Abbe number ?
Dielectric constant, 6.12 at 17-22 °C
Bond strength  ?
Bond length  ?
Bond angle  ?
Magnetic susceptibility -30.3 x 10−6 cgs

Thermodynamic properties[edit]

Phase behavior
Triple point 1074 K (801 °C), 30 Pa
Critical point 3900 K (3600 °C), 26 × 106 Pa
Std enthalpy change
of fusion
, ΔfusHo
27.95 kJ/mol (0.52 kJ/g)[1][2]
Std entropy change
of fusion
, ΔfusSo
 ? J/(mol·K)
Std enthalpy change
of vaporization
, ΔvapHo
 ? kJ/mol
Std entropy change
of vaporization
, ΔvapSo
 ? J/(mol·K)
Solid properties
Std enthalpy change
of formation
, ΔfHosolid
-411.12 kJ/mol[2]
Standard molar entropy,
72 J/(mol K)
Heat capacity, cp 50 J/(mol K) ; 0.853 J/(g k)[2]
Liquid properties
Std enthalpy change
of formation
, ΔfHoliquid
-385.92 kJ/mol
Standard molar entropy,
95.06 J/(mol K)
Density 1.549 g/cm3,[2] at 850°C
Heat capacity, cp  ? J/(mol K)
Boiling point 1465°C[2]
Gas properties
Std enthalpy change
of formation
, ΔfHogas
-181.42 kJ/mol
Standard molar entropy,
229.79 J/(mol K)
Heat capacity, cp  ? J/(mol K)

Spectral data[edit]

λmax  ? nm
Extinction coefficient, ε  ?
Major absorption bands  ? cm−1
Proton NMR  
Carbon-13 NMR  
Other NMR data  
Masses of
main fragments


Except where noted otherwise, data relate to standard ambient temperature and pressure.

Disclaimer applies.

  1. ^ "NaCl CID 5234, 4.2.14 Other Experimental Properties"
  2. ^ a b c d e "NaCl Other Chemical/Physical Properties"