Cesium iodide PurTrace 99.9995%

99.9995%


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

Properties

Assay Purity ?99.9995%
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
Chloroacetic Anhydride 97%

Application
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.

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

General Description
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.