Cesium Iodide Ultra Dry 99.998% (Metals Basis)

99.998% (Metals Basis)


Linear Formula:  CsI
Molecular Weight:  259.81g/mol
CAS Number: 7789-17-5

Properties

Water Solubility Completely soluble
Assay Purity 99.998% (Metals Basis)
Refractive index 1.7876
B pt. 1280 ℃
M pt. 626 ℃(lit.)
Density 4.51 g/mL at 25 ℃(lit.)

Safety Information

Hazard Statement(s) H361fd - H400
Precautionary Statement  P201 - P202 - P273 - P280 - P308 + P313 - P391
Symbol
Signal word Warning
HS Code 2827600000
Flash point 1280℃
Storage Temp. Store at room temperature.
Storage Class 9
Packaging Glass Bottle
UN Number 3077

Description

Recommended products
(S)-()-2-(6-Methoxy-2-Naphthyl)Propionic Acid 99%

Application
Caesium iodide (chemical formula CsI) is the ionic compound of caesium and iodine. It is often used as the input phosphor of an x-ray image intensifier tube found in fluoroscopy equipment. Caesium iodide photocathodes are highly efficient at extreme ultraviolet wavelengths.

Purpose
For R&D use onlynot for drug household or other uses.

General Description
Caesium iodide is used as a beamsplitter in Fourier transform infrared (FTIR) spectrometers. It has a wider transmission range than the more common potassium bromide beamsplitters extending its working range into the far infrared. However optical-quality CsI crystals are very soft and a hard to cleave or polish. They should also be coated (typically with germanium) and stored in a desiccator to minimize interaction with atmospheric water vapors.