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13mm Dia x 1mm Thickness Uncoated, Potassium Bromide Window

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Stock #68-804 20+ In Stock
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£70.80
Volume Pricing
Qty 1-10 £70.80 each
Qty 11-25 £63.60 each
Qty 26-49 £60.40 each
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Specifications

General

Type:
Protective Window

Physical & Mechanical Properties

Diameter (mm):
13.00 ±0.50
Thickness (mm):
1.00 ±0.50
Dimensional Tolerance (mm):
±0.50
Bevel:
Protective as needed
Edges:
Fine Ground
Poisson's Ratio:
0.20
Young's Modulus (GPa):
26.8
Knoop Hardness (kg/mm2):
7.00

Optical Properties

Coating:
Uncoated
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Potassium Bromide (KBr)
Index of Refraction (nd):
1.56
Surface Quality:
60-40
Abbe Number (vd):
33.64
Wavelength Range (nm):
250 - 26000

Material Properties

Density (g/cm3):
2.753
Coefficient of Thermal Expansion CTE (10-6/°C):
43
Solubility, in 100g of H2O @ 273K (g):
53.48

Regulatory Compliance

RoHS 2015:
Compliant
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Reach 219:
Compliant
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Certificate of Conformance:
View
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Product Details

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

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. 

Technical Information

Special Handling

These optics require special handling to avoid damage and ensure long-term performance. Proper handling, cleaning, and storage are essential to maintain optical quality. Explore our Optics Cleaning Resources for step-by-step guides and best practices. For personalized assistance, Email us or Chat with our technical support team.

Component Handling Tools
Component Handling Tools

Compatible Mounts