Potassium Bromide (KBr) Optical Crystal, <111>, Double-side polish, 10 x 10 mmProduct Type: Infrared optical crystal
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, technical specification confirmation or configuration support, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This crystal is moisture-sensitive and water-soluble, requiring storage in a dry, low-humidity environment. Chemical polishing is not recommended due to the risk of surface degradation; only mechanical polishing should be considered.
- Moisture Sensitivity: Store the crystal in a desiccated environment below 30% relative humidity to prevent surface dissolution.
- Surface Handling: Handle only with clean, powder-free gloves or vacuum tweezers to avoid contamination and moisture transfer.
- Polishing Restriction: Do not use chemical polishing methods; mechanical polishing with appropriate abrasives is required for surface reconditioning.
- Cleanroom Requirement: Unpack and inspect the crystal in a Class 1000 or cleaner environment to maintain specified surface quality.
- Orientation Tolerance: Confirm the <111> orientation within ±0.5–2° before any cutting or mounting procedures.
What is the maximum operating temperature for this KBr crystal before thermal degradation or deformation occurs?
The product description specifies a melting point of 770 °C, but does not state a maximum safe operating temperature for optical use. For infrared spectroscopy or laser window applications, the practical upper limit is typically well below the melting point due to thermal expansion and moisture sensitivity. Consult Atomfair directly for application-specific thermal cycling limits.
Can this double-side polished KBr crystal be used as a water-soluble substrate for thin-film lift-off processes without additional protective coatings?
Yes, the product description explicitly lists water-soluble thin-film substrate workflows as an application. However, the crystal is moisture sensitive and water-soluble, so it must be handled in a dry environment and stored in the provided Class 100 clean bag. No protective coating is mentioned, so direct exposure to aqueous solutions during lift-off will dissolve the substrate.
What are the handling and storage requirements to prevent surface degradation of this moisture-sensitive KBr crystal?
The product description states that KBr is water-soluble and moisture sensitive, and that chemical polishing is not recommended. The crystal is packaged in a Class 100 clean bag and should be stored in a Class 1000 or cleaner-room environment. Surface roughness is ≤ 30 nm with S/D 80/50 quality, so any exposure to humidity will degrade the polished surface. Use dry handling protocols and avoid aqueous cleaning.
Potassium Bromide (KBr) optical crystal with <111> orientation, double-side polish, 10×10 mm format, offering broad UV-to-mid-IR transmission (0.2–27.5 μm) and 91% transmission, but requires stringent moisture control due to water solubility and avoids chemical polishing for surface finishing.
Positive
- Broad UV-to-mid-IR transmission: Transmission range from 0.2 to 27.5 μm covers ultraviolet to mid-infrared, enabling use in infrared spectroscopy, laser windows, and optical components across multiple spectral regions.
- High transmission with low impurity absorption: Achieves 91% transmission with low impurity absorption, improving signal-to-noise ratio in spectroscopic and optical applications.
Trade-offs
- Water solubility and moisture sensitivity: Crystal is water-soluble and moisture sensitive, requiring storage in dry environments and careful handling to avoid surface degradation, which limits use in humid or aqueous conditions.
- Chemical polishing not recommended: Chemical polishing is not recommended for surface finishing, restricting post-processing options and requiring alternative mechanical or optical polishing methods.
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).
