Хлорид Натрия NaCl

МакроОптика produces lenses, windows, prisms, wedges, windows for spectrophotometers and others optical components according to customers’ specifications and drawings out of crystals sodium chloride NaCl .

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.

Sodium Chloride is produced in large ingots by the Kyropoulos growth method. Sodium Chloride cleaves easily. With care Sodium Chloride can be polished to a high standard under humidity controlled conditions

Product Data

Transmission Range 0.2 to 15 μm
Refractive Index 1.49065 at 10.6 μm
Reflection Loss 7.5% at 10.6 μm (2 surfaces)
Absorption Coefficient 7 x 10-6 cm-1 at 1.06 μm (1)
Reststrahlen Peak 50.1 μm
dn/dT -40.83 x 10-6 /°C
dn/dμ 0: n/a
Density 2.17 g/cc
Melting Point 801 °C
Thermal Conductivity 1.15 W m-1 K-1 at 273K
Thermal Expansion 44 x10-6 /°C
Hardness Knoop 18.2 in <100> with 200g indenter
Specific Heat Capacity 854 J Kg-1 K-1
Dielectric Constant 5.9 at 1MHz
Youngs Modulus (E) 39.98 GPa (2)
Shear Modulus (G) 12.61 GPa (2)
Bulk Modulus (K) 24.42 GPa (2)
Elastic Coefficients C11=48.5; C12=12.3; C44=12.61
Apparent Elastic Limit 3.9 MPa (560 psi) (2)
Poisson Ratio 0.252
Solubility 35.7g/100g water at 273K
Molecular Weight 58.45
Class/Structure Cubic FCC, NaCl, Fm3m, (100) cleavage

Transmittance

Refractive Index

No = Ordinary Ray

µm No µm No µm No
0.589 1.54427 0.640 1.54141 0.760 1.53682
0.884 1.53395 0.972 1.53253 1.054 1.53153
1.555 1.53815 2.074 1.52736 9.000 1.501
9.500 1.4998 10.60 1.49065 11.40 1.48476
12.50 1.47568 13.50 1.4666 14.60 1.45572
16.00 1.4399 17.80 1.41649 19.80 1.38559
20.57 1.3735 22.30 1.3403