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20mm Dia. x 2mm Thickness Uncoated, Sodium Chloride Window

Stock #68-814
$52.50
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Qty 1-10
$52.50
Qty 11
$48.00
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Abbe Number (vd):
42.89
Bevel:
Protective as needed
Diameter (mm):
20.00 ±0.50
Thickness (mm):
2.00 ±0.50
Coating:
Uncoated
Coefficient of Thermal Expansion CTE (10-6/°C):
44
Density (g/cm3):
2.17
Edges:
Fine Ground
Index of Refraction nd:
1.544
Knoop Hardness (kg/mm2):
18.2
Poisson's Ratio:
0.252
Solubility, in 100g of H2O @ 273K (g):
35.70
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
NaCl
Surface Quality:
60-40
Type:
Protective Window
Wavelength Range (μm):
0.25 - 16
Wavelength Range (nm):
250 - 16000
Young's Modulus (GPa):
39.98

Regulatory Compliance

RoHS 2015:
Reach 209:

Product Family Description

Sodium Chloride (NaCl) is a material commonly used in FTIR spectroscopy. NaCl is a relatively low cost cubic crystalline material that has excellent transmission from 250nm – 16μm. Over this large spectral range, its index of refraction ranges between 1.4 - 1.6. It is hygroscopic by nature and thus samples should not contain water. Sodium Chloride windows are sensitive to thermal shock but can be used in temperatures up to 400°C. NaCl has a density of 2.17 g/cm3 and a Knoop Hardness of 18.2.

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