Potassium Bromide (KBr) Optical Crystal, <111>, Double-side polish, 20 x 20 mmProduct Type: Infrared optical crystal
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
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E-MAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This potassium bromide optical crystal is water-soluble and highly moisture sensitive, requiring storage in a dry, low-humidity environment. Chemical polishing is not recommended due to the material's solubility in water.
- Moisture Sensitivity: Store the crystal in a dry environment to prevent moisture absorption and surface degradation.
- Water Solubility: Avoid contact with water or high humidity as the crystal is water-soluble and will dissolve.
- Chemical Polishing Restriction: Do not use chemical polishing methods; the material's solubility makes mechanical polishing the only viable option.
- Packaging Requirement: Handle and store in a Class 100 clean bag within a Class 1000 or cleaner environment to maintain surface quality.
What are the key handling and storage constraints for this KBr optical crystal due to its water solubility?
This KBr crystal is water-soluble and moisture-sensitive, requiring strict environmental control. The product description specifies that chemical polishing is not recommended, and packaging is performed in a Class 100 clean bag under Class 1000 or cleaner-room conditions. For laboratory use, exposure to ambient humidity must be minimized to prevent surface degradation, and storage in a desiccated environment is advised.
Does this double-side polished <111> KBr crystal support thin-film substrate separation workflows?
Yes, the product description explicitly lists water-soluble thin-film substrate workflows as an application. The <111> orientation, double-side polish, and 20 x 20 mm format are selected to enable film-substrate separation, leveraging KBr's water solubility to dissolve the substrate after film deposition. This is a distinct advantage over non-soluble substrates for certain transfer processes.
What is the optical transmission range and how does it constrain infrared spectroscopy applications?
The transmission range is 0.2–27.5 μm, covering ultraviolet to mid-infrared regions with a transmission of 91% and a refractive index of 1.49. This broad range makes the crystal suitable for infrared spectroscopy, prisms, lenses, and laser windows, but users must note that the 27.5 μm upper limit excludes far-infrared applications beyond that wavelength. The high transmission with low impurity absorption ensures minimal signal loss in the specified band.
This potassium bromide (KBr) optical crystal, <111>-oriented, double-side polished to 20 x 20 mm, offers broad UV-to-mid-IR transmission (0.2–27.5 μm) at 91% with low impurity absorption, but its water solubility and moisture sensitivity impose strict handling and storage requirements in dry environments.
Positive
- Broad UV-to-mid-IR transmission: Transmission range of 0.2–27.5 μm covers ultraviolet through mid-infrared, enabling use in spectroscopy, prisms, and windows across a wide spectral band.
- High transmission with low absorption: 91% transmission with low impurity absorption minimizes signal loss in optical applications, critical for accurate spectroscopic measurements.
Trade-offs
- Water solubility and moisture sensitivity: KBr is a water-soluble crystal; exposure to humidity can degrade surface quality, requiring storage in desiccated environments and careful handling to avoid dissolution.
- No chemical polishing allowed: Chemical polishing is not recommended for this material, limiting reworking options; surface quality (S/D 80/50) and roughness (≤30 nm) must be achieved during initial finishing.
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).
