239240
Cesium
ingot, ≥99.95% trace metals basis
Synonym(s):
Caesium
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About This Item
Empirical Formula (Hill Notation):
Cs
CAS Number:
Molecular Weight:
132.91
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12141801
EC Number:
231-155-4
MDL number:
vapor pressure
1 mmHg ( 279 °C)
assay
≥99.95% trace metals basis
form
ingot
reaction suitability
core: Cesium, reagent type: reductant
packaging
pkg of Packaged in: Breakseal Ampule
resistivity
19 μΩ-cm, 0°C
bp
705 °C (lit.)
mp
28.5 °C (lit.)
density
1.873 g/mL at 25 °C (lit.)
SMILES string
[Cs]
InChI
1S/Cs
InChI key
TVFDJXOCXUVLDH-UHFFFAOYSA-N
General description
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.
Application
- 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).
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signalword
Danger
hcodes
supp_hazards
Storage Class
4.3 - Hazardous materials which set free flammable gases upon contact with water
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard Classifications
Skin Corr. 1B - Water-react. 1
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Ying Wang et al.
Chemical communications (Cambridge, England), 49(3), 306-308 (2012-11-28)
A noncentrosymmetric chiral Strandberg-type polyoxometalate based material, Cs(4)Mo(5)P(2)O(22), that contains unusual one dimensional chains constructed from [Mo(5)P(2)O(23)](6-) units has been reported. Cs(4)Mo(5)P(2)O(22) shows a moderate SHG response, and is phase-matchable.
Mao-sheng Miao
Nature chemistry, 5(10), 846-852 (2013-09-24)
The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry, rooted in the atomic shell structure. Within compounds, Group I elements, for example, invariably assume the +1 oxidation state, and their chemical
Dahu Ding et al.
Water research, 47(7), 2563-2571 (2013-03-14)
A novel biosorbent derived from agricultural residue - walnut shell (WS) is reported to remove cesium from aqueous solution. Nickel hexacyanoferrate (NiHCF) was incorporated into this biosorbent, serving as a high selectivity trap agent for cesium. Field emission scanning electron