Atomfair Cesium Iodide Powder (CsI), 99.99% Purity
Product Description
Atomfair cesium iodide (CsI) is supplied as a white crystalline solid with 99.99% purity. It is intended for research on scintillator and electromagnetic-calorimetry.
Technical Specifications
| PARAMETER DETAILS | |
|---|---|
| Product | Cesium Iodide Powder (CsI) |
| Material | Cesium Iodide |
| Chemical Formula | CsI |
| CAS Number | 7789-17-5 |
| Purity | 99.99% |
| Physical State | Powder |
| Appearance | White crystalline solid |
| EC / EINECS Number | 232-145-2 |
| Molar Mass | 259.809 g/mol |
| Density | 4.51 g/cm³ |
| Melting Point | 632 °C |
| Boiling Point | 1280 °C |
| Water Solubility | 848 g/L at 25 °C |
| Crystal Structure | CsCl-type, cP2 |
| Refractive Index | 1.7873 at 0.59 µm |
| Moisture Sensitivity | Slightly hygroscopic |
Key Features and Advantages
- 99.99% purity.
- White crystalline solid.
APPLICATION SCOPE: scintillator and electromagnetic-calorimetry, FTIR beam-splitter, X-ray detector, and image-intensifier research
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.
Atomfair cesium iodide powder is a slightly hygroscopic white crystalline solid with 99.99% purity. Storage in a dry environment is necessary to prevent moisture absorption and maintain material integrity.
- Moisture Sensitivity: The material is slightly hygroscopic and requires protection from ambient humidity to avoid degradation.
How does the 99.99% purity of this CsI powder affect its performance in scintillator applications compared to lower-purity alternatives?
The 99.99% purity minimizes impurities that could cause afterglow or non-proportional scintillation response, ensuring high energy resolution for electromagnetic calorimetry. The product is specifically intended for scintillator and electromagnetic-calorimetry research as stated in the application scope.
Can this CsI powder be directly used for FTIR beamsplitter applications given its refractive index and hygroscopic nature?
CsI has a refractive index of 1.7873 at 0.59 µm, making it suitable for infrared optics such as FTIR beamsplitters. However, its slight hygroscopicity (water solubility 848 g/L at 25°C) requires careful storage in dry conditions to prevent degradation of optical performance, as noted in the application scope and moisture sensitivity specification.
What storage and handling precautions are necessary for this slightly hygroscopic CsI powder in a research laboratory?
Due to its slight hygroscopicity, the CsI powder should be stored in a sealed container in a dry environment, ideally in a desiccator, to prevent moisture absorption which can alter its crystalline quality and scintillation properties. The product documentation (COA and SDS) can be requested for batch-specific handling guidance.
Atomfair Cesium Iodide Powder (CsI) with 99.99% purity offers high density and refractive index suitable for scintillator and electromagnetic calorimetry research, but its slight hygroscopicity requires careful moisture control during handling and storage.
Positive
- High Purity for Scintillator Research: 99.99% purity minimizes background noise and improves signal clarity in scintillation, electromagnetic calorimetry, and X-ray detection applications.
- High Density and Refractive Index: Density of 4.51 g/cm³ and refractive index of 1.7873 at 0.59 µm enhance light yield and detection efficiency in scintillator and image-intensifier setups.
Trade-offs
- Slightly Hygroscopic Nature: The powder is slightly hygroscopic, requiring storage in a dry environment and careful handling to prevent moisture absorption that can alter optical or structural properties.
- High Processing Temperatures: Melting point of 632 °C and boiling point of 1280 °C necessitate high-temperature equipment for any melt processing or thermal treatment, increasing infrastructure requirements.
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).
