Potassium Chloride, Pieces, 99.99%, 3 -5 mm

Potassium chloride is used as a high-transparency optical material for infrared windows and lenses, often applied via vacuum deposition techniques to create moisture-sensitive but high-performance optical coatings.

KCl is utilized as an evaporation source material for the production of thin films in infrared spectroscopy components and specialized optical filters.