940127

Cesium chloride

≥99.5 (titration), ≥99.9 trace metals basis

• Synonym(s): Caesium chloride, Cesium monochloride
• Linear Formula: CsCl
• CAS Number: 7647-17-8
• Molecular Weight: 168.36
• MDL number: MFCD00010955

Properties

• Quality Level: 200
• assay: ≥99.5% (with AgNO₃, titration); ≥99.9 trace metals basis
• form: powder or crystals
• impurities: ≤1500 ppm (trace metals analysis)
• mp: 200 °C; 645 °C (lit.)
• density: 2.19 g/cm³
• cation traces: K: ≤0.05%; Li: ≤50.0 ppm; Mg: ≤1.0 ppm; Na: ≤0.1%; Ni: ≤1.0 ppm; Pb: ≤1.0 ppm; Rb: ≤0.1%
• application(s): (Energy)
• SMILES string: [Cl-].[Cs+]
• InChI: 1S/ClH.Cs/h1H;/q;+1/p-1
• InChI key: AIYUHDOJVYHVIT-UHFFFAOYSA-M

Description

General description

Cesium chloride is a highly water soluble crystalline solid withhigh refractive index and dielectric properties. It is widely used in the field of solid oxide fuel cells and lighting devices.[1,2]

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.[1] -As a medium to synthesize N and P-codoped carbon nanospheres for application in fuel cells and zinc-air batteries.[3] -To fabricate silicon nanopillars for solar cells, batteries, light-emitting diodes, etc.[4] -To enhance the thermal stability of polyoxometalates(used as electrode materials for lithium-ion batteries).[2] -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.[5]

Safety Information

• pictograms: GHS08
• signalword: Warning
• hcodes: H361f
• pcodes: P201 - P202 - P280 - P308 + P313 - P405 - P501
• Hazard Classifications: Repr. 2
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable