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562505

Sigma-Aldrich

Cesium hydroxide monohydrate

≥99.5% trace metals basis

Synonym(s):

Cesium hydroxide hydrate

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About This Item

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

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

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
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)
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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