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UV, visible, infra-red optical materials... |
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...for optical lenses, windows, mirrors, filters & prisms |
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Potassium Bromide - KBr
lenses, windows, mirrors, filters and prisms
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this page.
Used widely as infrared optical windows and components for general spectroscopy
because of its wide spectral range. Also used as infrared beamsplitters
or interferometers substrates. KBr is water soluble and polished surfaces
should be protected against moisture attack.
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| Transmission Range |
0.23 - 25.0 µ |
| Crystal Structure |
Rock Salt |
| Cleavage Plane |
100 |
| Colour |
Colourless |
| Density |
2.75 (23°) |
| Melting Point (°) |
730 |
| Reflection Loss |
8.4% (10µ) for 2 surfaces |
| Solubility index |
65.2gm/100gm / 20°C/TD>
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| Hardness (Knoop) |
5.9(110) 7.0(100) |
| Thermal Conductivity (cal/cm sec°C) |
1.15x10-2 (46°C) |
| Thermal Expansion coefficient (/°C) |
43x10-6(20 - 60°C) |

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Whilst every effort has been made to verify the data provided, no responsibility can be accepted for its accuracy
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Global Optics UK Ltd, 30 Brockley Road, Bournemouth,
Dorset, UK, BH10 6JN.
Tel: 01202 530609,
Fax: 01202 547209
Company Registered in England
Registered Office: 30 Brockley Road, Bournemouth BH10 6JN
| Company No. 3509979
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