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203025

Sigma-Aldrich

Cesium chloride

≥99.999% trace metals basis

Synonym(s):

Caesium chloride, Cesium monochloride

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About This Item

Linear Formula:
CsCl
CAS Number:
7647-17-8
Molecular Weight:
168.36
EC Number:
231-600-2
MDL number:
MFCD00010955
UNSPSC Code:
12352302
eCl@ss:
38050206
PubChem Substance ID:
24852140
NACRES:
NA.23

Assay

≥99.999% trace metals basis

form

crystalline

impurities

≤10.0 ppm Trace Metal Analysis

mp

645 °C (lit.)

SMILES string

[Cl-].[Cs+]

InChI

1S/ClH.Cs/h1H;/q;+1/p-1

InChI key

AIYUHDOJVYHVIT-UHFFFAOYSA-M

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General description

Cesium chloride is a highly water soluble crystalline solid withhigh refractive index and dielectric properties. It is widely used in the fieldof solid oxide fuel cells and lighting devices.

Application

Cesium chloride can be used:
  • As crystal seeds to enhance the coverage of the CH3NH3PbI3−xClx absorber layer in perovskite solar cells. It helps to boost the power conversion efficiency of solar cells.
  • As a medium to synthesize N and P-codoped carbon nanospheres for application in fuel cells and zinc-air batteries.
  • To fabricate silicon nanopillars for solar cells, batteries, light-emitting diodes, etc.
  • To enhance the thermal stability of polyoxometalates(used as electrode materials for lithium-ion batteries).
  • To synthesize the lead-free halide double perovskite Cs2AgInCl6 with excellent moisture, light, and heat resistance. This material shows great potential for various optoelectronic applications, including photovoltaics.

Pictograms

Health hazard
GHS08

Signal Word

Warning

Hazard Statements

H361f

Hazard Classifications

Repr. 2

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Effect of cesium chloride modification on the film morphology and UV-induced stability of planar perovskite solar cells
Wenzhe Li, et al.
Journal of Materials Chemistry, 4, 11688-11695 (2016)
Fabrication and reflection properties of silicon nanopillars by cesium chloride self-assembly and dry etching
Jing Liu, et al
Applied Surface Science, 258, 8825-8830 (2012)
Study of Polyoxometalates as Electrode Materials for Lithium-Ion Batteries: Thermal Stability Paves the Way to Improved Cycle Stability}
Georg-Maximilian Bosch, et al.
ChemElectroChem, 8, 656-664 (2021)
Composition design, optical gap and stability investigations of lead-free halide double perovskite Cs2AgInCl 6
Jun Zhou, et al.
Journal of Materials Chemistry, 5, 15031-15037 (2017)
A Metal-Free N and P-Codoped Carbon Nanosphere as Bifunctional Electrocatalyst for Rechargeable Zinc-Air Batteries
Ping Li, et al.
ChemElectroChem, 6, 393-397 (2019)
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