KRS-5 (Thallium Bromide / Iodide)
lenses, windows, mirrors, filters and prisms
Used for ATR (attenuated total reflection) prisms, infrared windows and lenses from 0.6-40 microns. KRS-5 is only slightly soluble in water but can be attacked by some solvents and acids. This material is relatively soft and care should be taken during handling and processing.
Caution: Thallium compounds are classified as toxic and must be handled with care.
|Transmission Range||0.6 – 40.0 µ|
|Crystal Structure||Caesium chloride|
|Melting Point (°)||414.5|
|Reflection Loss||28.4% (10µ) for 2 surfaces|
|Solubility index||0.02gm/100gm water / 10°C|
|Thermal Conductivity (cal/cm sec°C)||1.3x10-3 (20°C)|
|Thermal Expansion coefficient (/°C)||58x10-6 (20-100°C)|
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