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203017

Sigma-Aldrich

Cäsiumbromid

99.999% trace metals basis

Synonym(e):

Cesium monobromide

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About This Item

Lineare Formel:
CsBr
CAS-Nummer:
7787-69-1
Molekulargewicht:
212.81
EG-Nummer:
232-130-0
MDL-Nummer:
MFCD00010954
UNSPSC-Code:
12352302
PubChem Substanz-ID:
24852139
NACRES:
NA.23

Assay

99.999% trace metals basis

Form

powder and chunks

Verunreinigungen

≤15.0 ppm Trace Metal Analysis

mp (Schmelzpunkt)

636 °C (lit.)

Dichte

4.44 g/mL at 25 °C (lit.)

SMILES String

[Br-].[Cs+]

InChI

1S/BrH.Cs/h1H;/q;+1/p-1

InChIKey

LYQFWZFBNBDLEO-UHFFFAOYSA-M

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Allgemeine Beschreibung

Cesium bromide (CsBr) is an inorganic compound moderately soluble in water and exhibits hygroscopic properties. CsBr crystals are utilized in scintillation counters for detecting radiation due to their effective scintillation properties. It is also used in optics as a beam splitter component in wide-band spectrophotometers.

Anwendung

Cesium bromide can be used as:      
  • An electrolyte additives to improve the cycling efficiency of lithium and graphite anodes in lithium-ion batteries. The cesium cations can help control the interfacial chemistry on the anode, leading to enhanced performance.     
  • An additive to enhance the efficiency and stability of CsPbI2Br perovskite solar cells by passivating defects, improving charge transport properties, and contributing to higher power conversion efficiencies.
  • As a precursor material to synthesize cesium lead bromide (CsPbBr3) perovskite, which is then utilized as an electrode material in a symmetric supercapacitor.  
  • As a precursor to prepare thermal neutron imaging plates.     
  • As a precursor to synthesize lead-free CsBr: Eu2+ nanocrystals for fabricating white LEDs.    
  • As an additive to prepare CsI-based scintillators. Alloying with cesium bromide increases the yield limit and microhardness of CsI crystals.

Signalwort

Warning

Gefahreneinstufungen

Acute Tox. 4 Oral - Aquatic Acute 1 - Repr. 2

Lagerklassenschlüssel

13 - Non Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves

Analysenzertifikate (COA)

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D A Doyle et al.
Biochemical Society transactions, 22(4), 1043-1045 (1994-11-01)
Matthieu P Wintergerst et al.
Journal of the American Chemical Society, 130(12), 4129-4139 (2008-03-04)
Solvent-extraction studies provide confirming evidence that meso-octamethylcalix[4]pyrrole acts as an ion-pair receptor for cesium chloride and cesium bromide in nitrobenzene solution. The stoichiometry of the interaction under extraction conditions from water to nitrobenzene was determined from plots of the cesium
Peng Pan et al.
Analytical chemistry, 75(20), 5468-5474 (2004-01-09)
Solutions consisting of protein and small molecule mixtures have been subjected to electrospray ionization to study the influence of small molecule/cation components at high concentrations on the electrospray responses of proteins. Emphasis was placed on solutions consisting of equal parts
N Kurata et al.
Radiation protection dosimetry, 119(1-4), 398-401 (2006-06-01)
CsBr phosphor ceramics doped with different luminescence centres such as In2O3, Eu2O3, EuCl3, SmCl3, TbCl3, GdCl3 or NdCl3 as the candidate for a new optically-stimulable phosphor for medical X-ray imaging sensor were prepared using a conventional ceramic fabrication process. It
Wen-Chen Zheng et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 64(3), 628-630 (2006-01-03)
The complete high-order perturbation formula of g factor, including not only the widely used crystal-field (CF) mechanism, but also the neglected change-transfer (CT) mechanism in the CF theory, is established for a 3d8 ion in cubic octahedral site. From the
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