Cesium iodide CAS 7789-17-5
cesium iodide CAS 7789-17-5

Direct supply Cesium iodide CAS 7789-17-5 with high-purity

cesium iodide CAS 7789-17-5, cesium iodide, CAS 7789-17-5, 7789-17-5

Iodized cesium is abbreviated as CsI. Inorganic halides such as CsI(Tl) are widely used as the scintillation medium for high-energy particle and ionizing radiation detectors.

CAS : 7789-17-5

Formula : CsI

Mol. wt. : 259.81

EINECS : 232-145-2

Cesium iodide CAS 7789-17-5 Information

CAS7789-17-5
Molecular formulaCsI
Molecular weight259.81
EIENCS232-145-2
FormPearl-
Melting point626 °C (lit.)
boling point1280 °C
Density4.51 g/mL at 25 °C (lit.)
SolubilitySoluble in ethanol, methanol and acetone
PKA/
Colorwhite
Storage tempKeep in dark place,Inert atmosphere,Room temperature

What is Cesium iodide CAS 7789-17-5?

Iodized cesium is abbreviated as CsI. Inorganic halides such as CsI(Tl) are widely used as the scintillation medium for high-energy particle and ionizing radiation detectors. The vacuum-deposited CsI(Tl) film was first used for X-ray imaging in phototransformers. In advanced digital X-ray imaging, the CsI(Tl) scintillator film is widely applied for X-ray imaging due to its high scintillation efficiency for X-ray radiation, high spatial resolution, and good matching with the silicon-based readout array that is sensitive to spectra.

Cesium iodide CAS 7789-17-5 Use

Cesium iodide crystals are commonly used as the scintillator material in electromagnetic energy meters in particle physics experiments. Cesium iodide can be used as a spectroscope in Fourier Transform Infrared Spectroscopy (FT-IR) spectrometers as a diffraction grating. Compared to the more commonly used potassium bromide diffraction grating, cesium iodide has a wider light transmission range and the wavelength range can extend to far-infrared. However, there is a problem. The optical cesium iodide crystals are very soft and have no cleavage, so it is very difficult to produce a flat polished surface. In addition, cesium iodide optical crystals must be stored in a dry container to prevent water from reacting with cesium iodide. A layer of germanium can be plated on the surface of cesium iodide to minimize the influence of moisture in the air when exchanging the spectrometer.

Cesium iodide CAS 7789-17-5 safety

Toxic substances


Poisoning


Oral - LD50 for rats: 1400 milligrams per kilogram; Intraperitoneal - LD50 for rats: 1400 milligrams per kilogram 

The thermal decomposition releases toxic iodine-containing smoke.


Cold storage with ventilation and dry conditions


Water, carbon dioxide, foam, dry powder


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