Sodium Chloride
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Crystal properties |
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Crystal Type |
cubic |
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Transmission Range |
0.21 ... 26 µm |
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Refractive Index |
1.49980 @ 9,5 µm |
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Reflective Loss |
7.5 % @ 10.0 µm |
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Reststrahlen |
50.1 µm |
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Density. |
2.165 g/cm3 |
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Melting Point |
801 °C |
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Molecular Weight |
58.443 |
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Thermal Conductivity |
6.49 W/(m K) |
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Specific Heat |
854 J/(kg K) |
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Thermal Expansion. |
44×10–6 / K @ –50...200 °C |
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Hardness (Knoop) |
15.2 <110> |
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Young’s Modulus |
39.98 GPa |
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Shear Modulus |
12.61 GPa |
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Bulk Modulus |
24.42 GPa |
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Rupture Modulus |
2.38 Mpa |
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Elastic Coefficient |
C11 = 48.7 / C12 = 12.6 / C44 = 12.75 GPa |
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Dielectric Constant |
5.9 @ 25 °C, f = 100 Hz...25 GHz |
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Solubility in Water |
35.7 g / 100 g @ 0 °C |
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Cleavage Planes |
(100) |
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Standard Diameter |
180 mm |
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Application |
material for IR optic, CO2 laser windows |
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Remarks |
soluble in glycerol, slightly soluble in alcohol and aquos ammonia, insoluble in HCl |
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