Sodium chloride crystal optic disc, 25mm x 4mm, polished both sides

It has an optical transmittance of about 90% between 200 nm and 20 μm. So it is used in optical components (windows and prisms) operating in the infrared spectral range.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

• Clear sodium chloride disc
• Thickness: 4mm (0.157 in.)
• Diameter: 25mm (0.984 in.)
• Both sides polished

Use with a spectrophotometer.