Atomfair Cesium Bromide Powder (CsBr), 99.99% Purity, Approx. -50 Mesh
Product Description
Atomfair cesium bromide (CsBr) is supplied as a white solid with 99.99% purity and an approximately -50 mesh specification. It is intended for research on beam-splitter components for broadband spectrophotometry.
Technical Specifications
| PARAMETER DETAILS | |
|---|---|
| Product | Cesium Bromide Powder (CsBr) |
| Material | Cesium Bromide |
| Chemical Formula | CsBr |
| CAS Number | 7787-69-1 |
| Purity | 99.99% |
| Specification | Approximately -50 mesh |
| Physical State | Powder |
| Appearance | White solid |
| Water Solubility | 1230 g/L at 25 °C |
| Crystal Structure | CsCl-type cubic structure |
| EC / EINECS Number | 232-130-0 |
| Molar Mass | 212.809 g/mol |
| Density | 4.43 g/cm³ |
| Melting Point | 636 °C |
| Boiling Point | 1300 °C |
Key Features and Advantages
- 99.99% purity.
- Approximately -50 mesh specification.
- White solid.
- Water Solubility: 1230 g/L at 25 °C.
APPLICATION SCOPE: beam-splitter components for broadband spectrophotometry
DOCUMENTATION: COA and SDS can be provided upon request for batch-specific confirmation.
TAILORED SOLUTIONS FOR RESEARCH
For product specifications and quotation support, contact the Atomfair team.
Why is -50 mesh particle size specified for cesium bromide powder in spectrophotometry research?
The approximately -50 mesh specification indicates a coarse powder with particles passing through a 50-mesh sieve (≤300 µm). This particle size is selected to facilitate uniform dispersion and compaction during fabrication of optical components like beam-splitter pellets, while still allowing for controlled dissolution if solution processing is required. The product's stated application scope directly targets beam-splitter components for broadband spectrophotometry.
Are there specific purity requirements for CsBr used in broadband spectrophotometry beam-splitters?
Yes, this cesium bromide powder is supplied at 99.99% purity, which minimizes impurity-related absorption and scattering in the optical path. High purity is critical for beam-splitters to maintain consistent spectral performance across the broadband range, as contaminants can introduce unwanted absorption bands. The product's 99.99% purity and dedicated application scope confirm its suitability.
How should cesium bromide powder be stored to prevent degradation given its water solubility?
With a water solubility of 1230 g/L at 25 °C, CsBr is highly hygroscopic and will readily absorb moisture from the air. It should be stored in a sealed, moisture-proof container under dry conditions or in a desiccator. The white solid appearance may change if hydration occurs, and absorbed water can affect optical performance in beam-splitter fabrication. The product's SDS provides specific safety and handling guidelines.
Atomfair cesium bromide powder (99.99% purity, -50 mesh) is evaluated for use in beam-splitter components for broadband spectrophotometry, with high purity minimizing optical scatter and high water solubility requiring careful moisture management.
Positive
- High Purity (99.99%): The 99.99% purity level minimizes contaminant-related optical losses, directly supporting the intended application in beam-splitter components for broadband spectrophotometry.
- Consistent Mesh Size (-50 Mesh): The approximately -50 mesh specification ensures reproducible particle size distribution, facilitating uniform powder handling and consistent optical performance in fabricated components.
Trade-offs
- High Water Solubility: With a water solubility of 1230 g/L at 25 °C, the material is highly hygroscopic and must be stored in dry, sealed containers to prevent deliquescence and maintain purity during handling.
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).






