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239240

Sigma-Aldrich

Cesium

ingot, ≥99.95% trace metals basis

Synonym(s):

Caesium

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About This Item

Empirical Formula (Hill Notation):
Cs
CAS Number:
7440-46-2
Molecular Weight:
132.91
EC Number:
231-155-4
MDL number:
MFCD00134037
UNSPSC Code:
12141801
PubChem Substance ID:
24854363
NACRES:
NA.23

vapor pressure

1 mmHg ( 279 °C)

Quality Level

100

Assay

≥99.95% trace metals basis

form

ingot

reaction suitability

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

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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).

Pictograms

FlameCorrosion
GHS02,GHS05

Signal Word

Danger

Hazard Statements

H260,H314

Hazard Classifications

Skin Corr. 1B - Water-react 1

Supplementary Hazards

EUH014

Storage Class Code

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 3: Spontaneously combustible substances and water- reactive materials
Alkali metals (except potassium and sodium) and alkaline earth metals
Hazardous rank I
1st spontaneously combustible materials and water reactive materials

JAN Code

239240-5G:
239240-5G-PW:
239240-1G:
239240-VAR:
239240-BULK:
239240-1G-PW:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX3622
MKCV7041
MKCV7039
MKCV7245
MKCV7246

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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.
R W Leggett et al.
The Science of the total environment, 317(1-3), 235-255 (2003-11-25)
A physiologically descriptive model of the biological behavior of cesium in the human body has been constructed around a detailed blood flow model. The rate of transfer from plasma into a tissue is determined by the blood perfusion rate and
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
Jun Koarashi et al.
Scientific reports, 2, 1005-1005 (2012-12-21)
The fate of (137)Cs derived from the Fukushima nuclear accident fallout and associated radiological hazards are largely dependent on its mobility in the surface soils of forest ecosystems. Thus, we quantified microbial and adsorptive retentions of (137)Cs in forest surface
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