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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

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

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Skin Corr. 1A

Storage Class

8A - Combustible, corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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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