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NaI(Tl)
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Properties of NaCl
 
 
NaCl
Sodium Chloride
 
 
Description
 

Sodium Chloride, common rock salt, is one of the most useful materials for general purpose spectroscopic windows and applications where sensitivity to moisture is unimportant.

 
Properties
 
Absorption Coefficient (cm-1) 1.64 x 10-4 at 2.7µ
Apparent Elastic Limit (MPa) 2.4 (350 psi)
Bulk Modulus (K) (GPa) 24.42
Cleavage Planes (100)
Density (g.cm-3) 2.16
Dielectric Constant 5.9 at 1MHz
Elastic Coefficient C11 48.5
Elastic Coefficient C12 12.3
Elastic Coefficient C44 12.61
Hardness (knoop) (100) direction 18.2
Melting Point (°C) 801
Molecular Weight 58.45
Poisson Ratio 0.252
Reflection Loss (%) 7.5 at 10.6µ (2 surfaces)
Refractive Index 1.50 at 10µ
Restrahlen Peak (µ) 50.1
Shear Modulus (G) (GPa) 12.61
Solubility (g/100g H2O) 35.7 at 273K
Specific Heat Capacity (J.kg.m-1.K-1) 854
Structure FCC
Thermal Conductivity (W.m-1.K-1) 1.15 at 273K
Thermal Expansion (K-1 44 X 10-6
Transmission Range (µ) 0.2 to 15
Youngs Modulus (E) (GPa) 39.98
 
 

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