SODIUM CHLORIDE (NaCl)

Sodium chloride (NaCl) is used for windows, lenses and prisms where transmission in the range 0.25-16mkm is desired. The refractive index varies from about 1.6 to 1.4 in this range. Because of its low absorbtion, Sodium Chloride is being used in high power laser systems. Polished surfaces must be protected from moisture by exposing to only a dry atmoshere or by using a heating element to maintain temperature of the NaCl part above the ambient temperature.

Sodium Chloride can be used to a temperature of 400C. NaCl is sensitive to thermal shock and irradiation generates color centers.

Alkor Technologies manufactures optical windows made out of NaCl according to customer's specifications. Maximum available size of NaCl optics: 140 mm Dia x 50 mm Thk. Please contact us for more information.

Main properties:

Chemical Formula : NaCl
Crystal Structure : Cubic
Lattice Constant, A : 5.65
Density, g/cm3 : 2.17
Knopp Hardness : 15.2 (110), 18.2 (100)

Refractive Index