239240

Cäsium

ingot, ≥99.95% trace metals basis

• Synonym(e): Caesium
• Empirische Formel (Hill-System): Cs
• CAS-Nummer: 7440-46-2
• Molekulargewicht: 132.91
• EG-Nummer: 231-155-4
• MDL-Nummer: MFCD00134037
• UNSPSC-Code: 12141801
• PubChem Substanz-ID: 24854363
• NACRES: NA.23

Eigenschaften

• Dampfdruck: 1 mmHg ( 279 °C)
• Qualitätsniveau: 100
• Assay: ≥99.95% trace metals basis
• Form: ingot
• Eignung der Reaktion: reagent type: reductant
• Verpackung: pkg of Packaged in: Breakseal Ampule
• Widerstandsfähigkeit: 19 μΩ-cm, 0°C
• bp: 705 °C (lit.)
• mp (Schmelzpunkt): 28.5 °C (lit.)
• Dichte: 1.873 g/mL at 25 °C (lit.)
• SMILES String: [Cs]
• InChI: 1S/Cs
• InChIKey: TVFDJXOCXUVLDH-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Cesium(Cs) is a highly reactive alkali metal known for its unique properties its uniqueproperties, such as a low melting point and high atomic mass, which enhance itsexceptional conductivity and reactivity. Its compounds, particularly cesiumlead halide perovskites, are extensively utilized in next-generation solarcells to achieve high efficiency and stability. Additionally, cesium isutilized in electron emission devices and photonic technologies.

Anwendung

• Cesium-containing triple cation perovskite solar cells: improved stability, reproducibility and high efficiency: Demonstrates how adding cesium to perovskite solar cells improves their stability and efficiency, making a significant advancement in solar technology (M Saliba et al., 2016).
• Exotic stable cesium polynitrides at high pressure: Explores the formation of new cesium polynitrides under high pressure, indicating potential applications in high-energy-density materials (F Peng et al., 2015).

Sicherheitshinweise

• Piktogramme: GHS02,GHS05
• Signalwort: Danger
• H-Sätze: H260,H314
• P-Sätze: P223 - P231 + P232 - P280 - P305 + P351 + P338 - P370 + P378 - P422
• Gefahreneinstufungen: Skin Corr. 1B - Water-react 1
• Zusätzliche Gefahrenhinweise: EUH014
• Lagerklassenschlüssel: 4.3 - Hazardous materials which set free flammable gases upon contact with water
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges