Cesium iodide
ALDRICH/202134 - 99.9% trace metals basis
Synonym: Caesium iodide; Caesium monoiodide
CAS Number: 7789-17-5
Empirical Formula (Hill Notation): CsI
Molecular Weight: 259.81
EC Number: 232-145-2
MDL Number: MFCD00010962
Linear Formula: CsI
Product Type: Chemical
| assay | 99.9% trace metals basis |
| density | 4.51 g/mL at 25 °C (lit.) |
| form | powder |
| impurities | ≤1500.0 ppm Trace Metal Analysis |
| InChI | 1S/Cs.HI/h;1H/q+1;/p-1 |
| InChI key | XQPRBTXUXXVTKB-UHFFFAOYSA |
| mp | 626 °C (lit.) |
| Quality Level | 100  |
| SMILES string | [I-].[Cs+] |
| Application: | Cesium iodide (CsI) can be used as a cathode for the fabrication of field emission cathodes for potential usage in high power microwave systems. It can also be used to form an interface layer between the blocking layer and the perovskite active layer to improve the photovoltaic performance and stability of solar cells. |
| Features and Benefits: | • High purity of ≥99.995% Copper(II) chloride minimizes impurities, boosting efficiency and selectivity in catalytic processes essential for organic synthesis and industrial chemical production. • The presence of low metal impurities in ≥99.995% copper(II) chloride ensure consistent quality in electroplating applications, enhancing adhesion and achieving uniform coatings on substrates without contamination that could compromise the finish. • Anhydrous CuCl₂ reduces the risk of hydrolysis, preventing unwanted by-products and enhancing the efficiency of chemical processes. |
| Features and Benefits: | Frequently used in devices such as phosphor screens for medical imaging, scintillators, calorimeters and a variety of particle detectors. |
| Packaging: | 25, 100 g in poly bottle |
| Symbol |   GHS08,GHS09 |
| Signal word | Warning |
| Hazard statements | H361fd - H400 |
| Precautionary statements | P202 - P273 - P280 - P308 + P313 - P391 - P405 |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38-43 |
| Safety Statements | 22-36/37-45 |
| RIDADR | UN 3077 9 / PGIII |
| WGK Germany | WGK 2 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99.9% trace metals basis |
| mp | 626 °C (lit.) |
| Density | 4.51 g/mL at 25 °C (lit.) |
| UNSPSC | 12352302 |