Sodium Chloride Window (NaCl) is a material commonly used in FTIR spectroscopy. Stanford Optics has rich experience in manufacturing and supplying high-quality Optical Products.
Sodium Chloride (NaCl) windows are extensively used in Fourier Transform Infrared (FTIR) spectroscopy due to their outstanding optical properties. These cubic crystal materials offer excellent transmittance across a wide wavelength range of 250 nm to 16 μm. However, NaCl is inherently hygroscopic, meaning it naturally absorbs moisture from the environment. Consequently, it is imperative to use moisture-free samples to maintain optimal performance. Additionally, while NaCl windows can withstand temperatures up to 400 °C, they are particularly sensitive to thermal shock and must be handled with care to prevent damage.
NaCl windows are ideal for FTIR spectroscopy, providing reliable and high-quality performance in various infrared analytical instruments. Their superior transmittance and suitability for a broad spectral range make them a preferred choice for optical windows in FTIR systems, enabling precise and accurate spectral measurements.
Our Sodium Chloride Window (NaCl) is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
Abbe Number (vd) |
42.89 |
Density (g/cm3) |
2.17 |
Index of Refraction nd |
1.544 |
Poisson's Ratio |
0.252 |
Substrate |
Sodium Chloride (NaCl) |
Wavelength Range (nm) |
250 - 16000 |
Coefficient of Thermal Expansion CTE (10-6/℃) |
44 |
Edges |
Fine Ground |
Knoop Hardness (kg/mm2) |
18.2 |
Solubility, in 100g of H2O @ 273K (g) |
35.70 |
Surface Quality |
60-40 |
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