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ALKOR Technologies - your CRYSTAL optics supplier.
Materials>>KBr>>KBr windows catalog

Potassium bromide (KBr) windows catalog. IR KBr drilled windows for FTIR.

Welcome to our KBr windows catalog. We produce custom sizes KBr windows according to your specifications. Moisture protective coating can be applied on all KBr windows. Also we are experts in KBr beamsplitters.

Drilled KBr windows

Contact us for quotation and save up to 80% from major optical catalog price!

Potassium Bromide (KBr) is a material commonly used in FTIR spectroscopy.áWe have long experience of supplying the KBr windows of standard (catalogue) sizes for the commonly used instruments from Perkin Elmer, Nicolette, Bruker Optics, Pike, etc. Drilled round and rectangular KBr windows for spectrospy are in our product line.

  • Excellent Transmission from 250nm to 26Ám
  • Good Resistance to Mechanical Shock
  • Ideal for FTIR Spectroscopy
  • Drilled KBr windows - all standard sizes
  • Packing: All KBr optics carefully packaged into plastic boxes with silicagel and sealed with special moisture protective film.
Cat# Dia, in Dia,mm TH, in TH, mm
KB-W-12.7x2 0.5 12.7 0.079 2.0
KB-W-12.7x3 0.5 12.7 0.079 3.0
KBr-W-13x2 0.512 13 0.079 2.0
KB-W-25.4x2 1 25.4 0.079 2.0
KB-W-25.4x3 1 25.4 0.118 3.0
KB-W-25.4x4 1 25.4 0.157 4.0
KB-W-25.4x5 1 25.4 0.197 5.0
KB-W-25.4x6 1 25.4 0.236 6.0
KBr-W-32x3 (drilled & undrilled)* 1.26 32 0.118 3.0
KB-W-38.1x3 1.5 38.1 0.118 3.0
KB-W-38.1x4 1.5 38.1 0.157 4.0
KB-W-38.1x5 1.5 38.1 0.197 5.0
KB-W-38.1x6 1.5 38.1 0.236 6.0
KBr-W-41x3 1.614 41.0 0.118 3.0
KB-W-49x6 1.929 49 0.236 6.0
KB-W-50.8x4 2 50.8 0.157 4.0
KB-W-50.8x5 2 50.8 0.197 5.0
KB-W-50.8x6 2 50.8 0.236 6.0
KB-W-63.5x6 2.5 63.5 0.236 6.0
KB-W-63.5x8 2.5 63.5 0.315 8.0
KB-W-76.2x8 3 76.2 0.315 8.0
KB-W-76.2x12 3 76.2 0.472 12.0
KB-W-95x35 3.74 95.0 1.378 35
KB-W-101.6x12 4 101.6 0.5 12.7
KB-W-101.6x15 4 101.6 0.591 15.0

Custom KBr windows up to 100mm diameter are available upon request.

* - minimal order for drilled KBr windows - 10pcs


KBr Rectangles, minimal order for drilled windows - 10pcs
Length x Width x Thickness
25 x 12 x 2 mm
25 x 25 x 4 mm
29.5 x 14.5 x 2 mm
29.5 x 14.5 x 2 mm drilled
29.5 x 14.5 x 4 mm
29.5 x 14.5 x 4 mm drilled
38.5 x 19.5 x 2 mm
38.5 x 19.5 x 2 mm drilled
38.5 x 19.5 x 4 mm
38.5 x 19.5 x 4 mm drilled
41 x 23 x 3 mm
41 x 23 x 3 mm drilled
41 x 23 x 6 mm
41 x 23 x 6 mm drilled
45 x 20 x 6 mm
45 x 20 x 6 mm drilled
50 x 25 x 6 mm
50 x 25 x 6 mm drilled

KBr windows: Standard Specifications
Material KBr optical grade
Dimensions ▒ 0.00/-0.10mm
Thickness ▒ 0.10mm
Surfaces 80/50 or 60/40
Edges Fine Ground
Flatness By request
Parallelism ≤ 3 Arc mins