1.02040

Cesium carbonate

extra pure, Technipur^®

• Synonym(s): Dicesium carbonate, Carbonic acid dicesium
• Linear Formula: Cs₂CO₃
• CAS Number: 534-17-8
• Molecular Weight: 325.82
• Beilstein/REAXYS Number: 4546405
• MDL number: MFCD00010957
• UNSPSC Code: 12352302
• NACRES: NA.21

Properties

• Quality Level: 200
• pH: 10-12 (20 °C, 50 g/L in H₂O)
• mp: 610 °C (dec.) (lit.)
• density: 4.07 g/cm³ at 20 °C
• SMILES string: [Cs+].[Cs+].[O-]C([O-])=O
• InChI: 1S/CH2O3.2Cs/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
• InChI key: FJDQFPXHSGXQBY-UHFFFAOYSA-L

Description

General description

Cesium carbonate (Cs₂CO₃) is widely used in electronic and optoelectronic industries because of its excellent electron injection capability and outstanding optical properties. It also possesses high solubility in polar solvents, therefore it can be used as a surface modification material in organic light-emitting diodes (OLEDs) and solar cells.

Application

Cesium carbonate can be used as an additive in 4,7-diphenyl-1,10-phenanthroline (BPhen) based organic light-emitting diodes (OLEDs) to enhance the electrical characteristics and luminance efficiency of OLEDs by decreasing the activation energy of the organic layer as a result of increased electron injection and transport. In perovskite solar cells (PCSs) and other optoelectronic devices, Cs₂CO₃ is used as an effective modifier to improve their photoelectric conversion efficiency by reducing the barrier between interfaces and defects in electron transport layers which makes electron transfer easier.

Promotes the efficient O-alkylation of alcohols to form mixed alkyl carbonates.

Legal Information

Technipur is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• pictograms: GHS05,GHS08
• signalword: Danger
• hcodes: H318 - H361f - H373
• pcodes: P202 - P260 - P280 - P305 + P351 + P338 - P308 + P313 - P405
• Hazard Classifications: Eye Dam. 1 - Repr. 2 - STOT RE 2 Oral
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable