Cesium iodide , Analysis of standard products, for high -throughput mass spectrometer, 99.9995% , 7789-17-5
Synonym(s):
Cesium monoiodide
CAS NO.：7789-17-5
Empirical Formula: CsI
Molecular Weight: 259.81
MDL number: MFCD00010962
EINECS: 232-145-2
| Pack Size | Price | Stock | Quantity |
| 1G | RMB303.20 | In Stock |
|
| others | Enquire |
PRODUCT Properties
| Melting point: | 626 °C (lit.) |
| Boiling point: | 1280 °C |
| Density | 4.51 g/mL at 25 °C (lit.) |
| refractive index | 1.7876 |
| Flash point: | 1280°C |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | soluble in ethanol, methanol, acetone |
| form | beads |
| color | White |
| Specific Gravity | 4.51 |
| PH | pH(50g/l, 25℃) : 5.0～9.0 |
| Water Solubility | 74 g/100 mL (20 ºC) |
| Sensitive | Hygroscopic |
| Merck | 14,2014 |
| Exposure limits | ACGIH: TWA 0.01 ppm |
| Dielectric constant | 5.6（Ambient） |
| Stability: | Stable. Deliquescent. |
| CAS DataBase Reference | 7789-17-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Cesium iodide(7789-17-5) |
| EPA Substance Registry System | Cesium iodide (CsI) (7789-17-5) |
Description and Uses
Cesium iodide (CsI) is a kind of ionic compound that has been widely used as scintillators in many areas such as X-ray image intensifier tubes, photocathodes, and display devices.
Cesium iodide is used in scintillation counters(Geiger counters) to measure levels of external radiation. It is also useful as a "getter" to remove air molecules remaining in vacuum tubes.
Cesium Iodide is a material with high γ-ray stopping power due to its relative high density and atomic number. For scintillation counting, it is used either in its un-doped form or doped with sodium or thallium.
CsI is resistant to thermal and mechanical shock. The physical characteristics of CsI are independent of the activator used. Compared to NaI(Tl), it is relatively soft and plastic, and does not cleave. Because it has no cleavage plane, it is quite rugged-which makes it well-suited for well logging, space research or other applications where severe shock conditions are encountered.
Safety
| Symbol(GHS) |   GHS08,GHS09 |
| Signal word | Warning |
| Hazard statements | H361fd-H400 |
| Precautionary statements | P201-P202-P273-P280-P308+P313-P391 |
| Hazard Codes | Xn,Xi |
| Risk Statements | 36/37/38-42/43-43 |
| Safety Statements | 22-36/37-45 |
| RIDADR | UN 3077 9 / PGIII |
| WGK Germany | 2 |
| RTECS | FL0350000 |
| F | 8 |
| TSCA | Yes |
| HS Code | 28276000 |
| Toxicity | LD50 i.p. in rats: 1.4 g/kg (Cochran) |
