Potassium Bromide KBr Crystal 10×10 mm ATOMFAIR®

$30.00

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Research-grade cubic KBr optical crystal, single-side polished 10×10 mm, 0.2–27.5 μm range, 91% transmission, surface S/D 80/50. Order now.

SKU: AF-IR-C-KBR1-T025-AS10
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Potassium Bromide (KBr) Optical Crystal, <100>, Single-side polish, 10 x 10 mm

Product Type: Infrared optical crystal
Research-grade laboratory product

Product Overview

Potassium Bromide (KBr) optical crystal is a uniform, bright and transparent cubic crystal with useful ultraviolet-to-mid-infrared transmission.

The selected <100> orientation, single-side polish and 10 x 10 mm format are suitable for infrared spectroscopy, optical components and water-soluble thin-film substrate workflows.

Performance Features

  • Broad transmission from the ultraviolet region to the mid-infrared region.
  • High transmission with low impurity absorption.
  • Single-side and double-side polishing options.
  • Water-soluble substrate for film-substrate separation applications.

Technical Specifications

Parameter Specification / Available Values
Atomfair Model AF-KBr-100S10
Material Potassium Bromide
Crystal Orientation <100>
Polish Single-side polish
Size 10 x 10 mm
Crystal Structure Cubic
Growth Method Czochralski pulling method
Melting Point 770 °C
Lattice Constant a = 6.291 Å
Density 1.98 g/cm³
Transmission Range 0.2–27.5 μm
Refractive Index 1.49
Transmission 91%
Moisture and Surface Handling Water-soluble crystal; moisture sensitive; chemical polishing is not recommended
Orientation Tolerance ±0.5–2°
Thickness 0.5–5 mm; customizable
Surface Quality S/D 80/50
Surface Roughness ≤ 30 nm
Packaging Class 100 clean bag; Class 1000 or cleaner-room environment
Applications Infrared spectroscopy, prisms, lenses, filters, cell windows, laser windows and thin-film substrates
ORIENTATION, POLISH AND SIZE CONFIRMATION: Confirm the selected <100> orientation, single-side polish, 10 x 10 mm format, thickness and surface-finish requirements before quotation.
SPECIFICATION CONFIRMATION: Confirm the selected specification, quantity and required finishing before quotation.
QUOTATION NOTE: Include the required model and exact specification when requesting quotation support.
LABORATORY PROCUREMENT SUPPORT
For model selection, technical specification confirmation or configuration support, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®

This potassium bromide crystal is water-soluble and moisture-sensitive, requiring controlled humidity storage. Chemical polishing is not recommended due to the crystal's solubility and surface quality requirements.

  • Moisture Sensitivity: The crystal dissolves in water and degrades in high humidity, requiring storage in a dry environment.
  • Chemical Polishing Restriction: Chemical polishing is not recommended as it may damage the surface finish and optical quality.
  • Storage Environment: The crystal should be stored in a Class 100 clean bag within a Class 1000 or cleaner room to prevent contamination.

What are the key handling and storage constraints for this KBr optical crystal given its water solubility?

This KBr crystal is water-soluble and moisture-sensitive, so it must be stored in a dry environment and handled with care to avoid exposure to humidity. The product is packaged in a Class 100 clean bag under Class 1000 or cleaner-room conditions, and chemical polishing is not recommended. These constraints are critical for maintaining the specified surface quality (S/D 80/50) and surface roughness (≤ 30 nm).

Does this single-side polished <100> KBr crystal support thin-film substrate separation workflows?

Yes, the product description explicitly lists water-soluble thin-film substrate workflows as an application. The single-side polish on a 10 x 10 mm <100> orientation crystal provides a smooth surface for film deposition, and the water solubility of KBr enables subsequent film-substrate separation by dissolving the crystal in water. This is a distinct advantage over non-soluble substrates for certain transfer processes.

What is the transmission range and refractive index of this KBr crystal for infrared spectroscopy applications?

The KBr crystal offers a broad transmission range from 0.2 to 27.5 μm, covering ultraviolet to mid-infrared wavelengths, with a refractive index of 1.49 and transmission of 91%. These specifications make it suitable for infrared spectroscopy components such as cell windows, prisms, and laser windows, though the single-side polish may require orientation toward the beam path for optimal performance.

This 10 x 10 mm <100>-oriented KBr crystal with single-side polish offers broadband 0.2–27.5 μm transmission at 91% for infrared spectroscopy and thin-film substrate workflows, but its water solubility and moisture sensitivity require controlled handling and storage.

Positive

  • Broad UV-to-MIR transmission: Transmission range of 0.2–27.5 μm with 91% transmission and low impurity absorption supports infrared spectroscopy, prisms, lenses, filters, and laser windows across a wide spectral band.
  • Water-soluble substrate capability: The crystal's water solubility enables film-substrate separation workflows, allowing thin-film removal by dissolution in aqueous media.

Trade-offs

  • Moisture-sensitive handling required: As a water-soluble crystal, it is moisture sensitive; chemical polishing is not recommended, and exposure to humid environments can degrade surface quality.
  • Cleanroom packaging dependency: Supplied in Class 100 clean bags and requiring a Class 1000 or cleaner environment, the crystal demands controlled storage and handling to maintain its S/D 80/50 surface quality.

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).