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Sodium Chloride (NaCl)

♦ Sodium Chloride (NaCl) Data Sheet    ♦ Sodium Chloride (NaCl) MSDS

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.

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
Rupture Modulus : 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
 

To download this data as a pdf file, or our MSDS safety data sheet, please click on the links at the top of the page. To expand the transmission graphs, please click on the image.

Click to access current Sodium Chloride Stock Windows  

µm   Noµm   Noµm   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

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

REFERENCES:
(1) H.H.Li, Absorption Coefficients, Int.J.Therm, V1, No. I, 1980
(2) Combes, et.al.; J.Opt. Soc. Am. V41, p215, 1951