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562505

Sigma-Aldrich

Cesium hydroxide monohydrate

≥99.5% trace metals basis

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Synonym(s):
Cesium hydroxide hydrate
Empirical Formula (Hill Notation):
HCsO · H2O
CAS Number:
35103-79-8
Molecular Weight:
167.93
EC Number:
244-344-1
MDL number:
MFCD00010964
UNSPSC Code:
12352302
PubChem Substance ID:
329758193
NACRES:
NA.23

Quality Level

100

Assay

≥99.5% trace metals basis

form

powder or crystals

impurities

≤5000.0 ppm Trace Metal Analysis

mp

272 °C (lit.)

density

3.68 g/mL at 25 °C (lit.)

SMILES string

[Cs+].[O-][H].[H]O[H]

InChI

1S/Cs.H2O/h;1H2/q+1;/p-1

InChI key

HUCVOHYBFXVBRW-UHFFFAOYSA-M

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General description

Cesium hydroxide is a strong base that can be used in organic synthesis, as a catalyst, and as an intermediate in the production of cesium compounds.

Application

Cesium hydroxide monohydrate can be used:

  • As a catalyst to prepare unsymmetrical Bis-allyl ethers via dimerization of Baylis-Hillman adducts.
  • As a dopant to fabricate vanadium oxide thin films as a hole extraction layer for perovskite solar cells.
  • As an initiator for ring opening polymerization of monosubstituted oxiranes.
  • As a promoter to synthesize secondary amines via chemoselective N-alkylation.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302,H314

Hazard Classifications

Acute Tox. 4 Oral - Skin Corr. 1A

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Application of cesium hydroxide monohydrate for ring opening polymerization of monosubstituted oxiranes: characterization of synthesized polyether-diols
Zbigniew Grobelny, et al.
Polymer Bull., 78, 7301-7312 (2021)
Cesium Hydroxide Promoted Chemoselective N-Alkylation for the Generally Efficient Synthesis of Secondary Amines
Ralph N. Salvatore, et al.
Organic Letters, 1, 1893-1896 (1999)
An atom-economical and environmentally benign preparation of unsymmetrical bis-allyl ethers via dimerization of Baylis-Hillman adducts catalyzed by cesium hydroxide monohydrate
Yunkui Liu, et al.},
Synlett, 2005, 2999-3001 (2005)
Cesium-Doped Vanadium Oxide as the Hole Extraction Layer for Efficient Perovskite Solar Cells
Xiang Yao, et al.
ACS Omega, 3, 1117-1125 (2018)
David Johannes Scholz et al.
Magma (New York, N.Y.), 28(6), 591-598 (2015-10-10)
(13)C metabolic MRI using hyperpolarized (13)C-bicarbonate enables preclinical detection of pH. To improve signal-to-noise ratio, experimental procedures were refined, and the influence of pH, buffer capacity, temperature, and field strength were investigated. Bicarbonate preparation was investigated. Bicarbonate was prepared and
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