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Merck

202134

Cesium iodide

99.9% trace metals basis

Synonym(s):

Caesium iodide, Caesium monoiodide

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About This Item

Empirical Formula (Hill Notation):
CsI
CAS Number:
7789-17-5
Molecular Weight:
259.81
NACRES:
NA.23
PubChem Substance ID:
24852041
UNSPSC Code:
12352302
EC Number:
232-145-2
MDL number:
MFCD00010962
Assay:
99.9% trace metals basis
Form:
powder

Key Documents

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Product Name

Cesium iodide, 99.9% trace metals basis

InChI key

XQPRBTXUXXVTKB-UHFFFAOYSA-M

InChI

1S/Cs.HI/h;1H/q+1;/p-1

SMILES string

[I-].[Cs+]

assay

99.9% trace metals basis

form

powder

impurities

≤1500.0 ppm Trace Metal Analysis

mp

626 °C (lit.)

density

4.51 g/mL at 25 °C (lit.)

Quality Level

100

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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.
Frequently used in devices such as phosphor screens for medical imaging, scintillators, calorimeters and a variety of particle detectors.

pictograms

Health hazardEnvironment
GHS08,GHS09

signalword

Warning

Hazard Classifications

Aquatic Acute 1 - Repr. 2

Storage Class

13 - Non Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000458426
0000458434
0000458434
0000458426
0000451108

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Low level plasma formation in a carbon velvet cesium iodide coated cathode
Shiffler D, et al.
Physics of Plasmas, 11(4), 1680-1684 (2004)
Comparison of velvet-and cesium iodide-coated carbon fiber cathodes
Shiffler D, et al.
IEEE transactions on nuclear science, 29(3), 445-451 (2001)
Cong Chen et al.
Advanced science (Weinheim, Baden-Wurttemberg, Germany), 6(11), 1802046-1802046 (2019-06-11)
Photovoltaic devices employing lead halide perovskites as the photoactive layer have attracted enormous attention due to their commercialization potential. Yet, there exists challenges on the way to the practical use of perovskite solar cells (PSCs), such as light stability and
Olga Nazarenko et al.
Inorganic chemistry, 56(19), 11552-11564 (2017-09-13)
Interest in hybrid organic-inorganic lead halide compounds with perovskite-like two-dimensional crystal structures is growing due to the unique electronic and optoelectronic properties of these compounds. Herein, we demonstrate the synthesis, thermal and optical properties, and calculations of the electronic band
Melanie Freed et al.
Medical physics, 37(6), 2593-2605 (2010-07-17)
Accurate models of detector blur are crucial for performing meaningful optimizations of three-dimensional (3D) x-ray breast imaging systems as well as for developing reconstruction algorithms that faithfully reproduce the imaged object anatomy. So far, x-ray detector blur has either been
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