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Chemical data page From Wikipedia, the free encyclopedia
This page provides supplementary chemical data on sodium chloride.
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 eChemPortal, and follow its direction.
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 | −30.3×10−6 cgs |
Phase behavior | |
---|---|
Triple point | 1074 K (801 °C), 30 Pa |
Critical point | 3900 K (3600 °C), 26×106 Pa |
Std enthalpy change of fusion, ΔfusH |
27.95 kJ/mol (0.52 kJ/g)[1][2] |
Std entropy change of fusion, ΔfusS |
26.02 J/(mol·K) |
Std enthalpy change of vaporization, ΔvapH |
130.05 @ T-Boiling kJ/mol |
Std entropy change of vaporization, ΔvapS |
? J/(mol·K) |
Solid properties | |
Std enthalpy change of formation, ΔfH |
−411.12 kJ/mol[2] |
Standard molar entropy, S |
72 J/(mol·K) |
Heat capacity, cp | 50 J/(mol·K) ; 0.853 J/(g·k)[2] |
Liquid properties | |
Std enthalpy change of formation, ΔfH |
−385.92 kJ/mol |
Standard molar entropy, S |
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, ΔfH |
−181.42 kJ/mol |
Standard molar entropy, S |
229.79 J/(mol·K) |
Heat capacity, cp | ? J/(mol·K) |
NaCl, wt% | Teq, °C | ρ, g/cm3 | n | η, mPa·s |
---|---|---|---|---|
0 | 0 | 0.99984 | 1.333 | 1.002 |
0.5 | −0.3 | 1.0018 | 1.3339 | 1.011 |
1 | −0.59 | 1.0053 | 1.3347 | 1.02 |
2 | −1.19 | 1.0125 | 1.3365 | 1.036 |
3 | −1.79 | 1.0196 | 1.3383 | 1.052 |
4 | −2.41 | 1.0268 | 1.34 | 1.068 |
5 | −3.05 | 1.034 | 1.3418 | 1.085 |
6 | −3.7 | 1.0413 | 1.3435 | 1.104 |
7 | −4.38 | 1.0486 | 1.3453 | 1.124 |
8 | −5.08 | 1.0559 | 1.347 | 1.145 |
9 | −5.81 | 1.0633 | 1.3488 | 1.168 |
10 | −6.56 | 1.0707 | 1.3505 | 1.193 |
12 | −8.18 | 1.0857 | 1.3541 | 1.25 |
14 | −9.94 | 1.1008 | 1.3576 | 1.317 |
16 | −11.89 | 1.1162 | 1.3612 | 1.388 |
18 | −14.04 | 1.1319 | 1.3648 | 1.463 |
20 | −16.46 | 1.1478 | 1.3684 | 1.557 |
22 | −19.18 | 1.164 | 1.3721 | 1.676 |
23.3 | −21.1 | |||
23.7 | −17.3 | |||
24.9 | −11.1 | |||
26.1 | −2.7 | |||
26.28 | 0 | |||
26.32 | 10 | |||
26.41 | 20 | |||
26.45 | 25 | |||
26.52 | 30 | |||
26.67 | 40 | |||
26.84 | 50 | |||
27.03 | 60 | |||
27.25 | 70 | |||
27.5 | 80 | |||
27.78 | 90 | |||
28.05 | 100 |
Note: ρ is density, n is refractive index at 589 nm,[clarification needed] and η is viscosity, all at 20 °C; Teq is the equilibrium temperature between two phases: ice/liquid solution for Teq < 0–0.1 °C and NaCl/liquid solution for Teq above 0.1 °C.
UV-Vis | |
---|---|
λmax | ? nm |
Extinction coefficient, ε | ? |
IR | |
Major absorption bands | ? cm−1 |
NMR | |
Proton NMR | |
Carbon-13 NMR | |
Other NMR data | |
MS | |
Masses of main fragments |
|
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