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Potassium Bromide (KBr) Windows

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  • Excellent Transmission from 250nm – 26μm
  • Good Resistance to Mechanical Shock
  • Ideal for FTIR Spectroscopy
  • Sodium Chloride (NaCl) Windows Also Available

Common Specifications

Bevel:
Protective as needed
Edges:
Fine Ground
Knoop Hardness (kg/mm2):
7
Poisson's Ratio:
0.203
Young's Modulus (GPa):
26.8
Abbe Number (vd):
33.64
Coating:
Uncoated
Index of Refraction nd:
1.56
Substrate:
Potassium Bromide (KBr)
Surface Quality:
60-40
Wavelength Range (nm):
250 - 26000
Coefficient of Thermal Expansion CTE (10-6/°C):
43
Density (g/cm3):
2.753
Solubility, in 100g of H2O @ 273K (g):
53.48
Dia. (mm)  Thickness (mm)   Coating   Compare   Stock Number   Price  Buy
13.00 1.00 Uncoated #68-804 ₹6,786 Qty 11+ ₹6,112   Request Quote  
  • 10 to 12 days
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13.00 2.00 Uncoated #68-805 ₹6,786 Qty 11+ ₹6,112   Request Quote  
  • 10 to 12 days
    ×
 
20.00 2.00 Uncoated #68-806 ₹7,047 Qty 11+ ₹6,351   Request Quote  
  • 10 to 12 days
    ×
 
25.00 2.00 Uncoated #68-807 ₹7,917 Qty 11+ ₹7,134   Request Quote  
  • Contact Us
    ×
 
25.00 4.00 Uncoated #68-808 ₹7,917 Qty 11+ ₹7,134   Request Quote  
  • 10 to 12 days
    ×
 
25.00 5.00 Uncoated #68-809 ₹7,917 Qty 11+ ₹7,134   Request Quote  
  • 10 to 12 days
    ×
 
32.00 3.00 Uncoated #68-810 ₹8,352 Qty 11+ ₹7,526   Request Quote  
  • 10 to 12 days
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50.00 3.00 Uncoated #68-811 ₹23,055 Qty 11+ ₹20,750   Request Quote  
  • Contact Us
    ×
 

Potassium Bromide (KBr) Windows are ideal for FTIR spectroscopy. KBr has a slightly more extensive spectral range than Sodium Chloride (NaCl) and has excellent transmission from 250nm – 26μm. Its index of refraction varies from 1.46 - 1.59 over this range. KBr is water soluble, and its surfaces should be protected from exposure to moisture. Exposure to moisture will degrade the surface of the window. Potassium Bromide (KBr) Windows provide good resistance to mechanical shock, can be easily cleaved, and can be used in temperatures up to 300°C. KBr has a density of 2.75g/cm3 and a Knoop Hardness of 7.0. 

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