Cesium hydroxide solution - ≥99.9% metals basis, 50 wt. % in H2O , CAS No.21351-79-1

CAS: 21351-79-1 Cat. No.: C432316 Molecular Weight: 149.91 EC Number: 244-344-1
AVAILABLE TO ORDER
GRADE & PURITY ≥99.9% metals basis 50 wt. % in H2O
Synonyms
Caesium hydroxide [UN2682] [Corrosive] | Cesium hydroxide monohydrate, >=99.5% trace metals basis | Cesium, di-mu-hydroxydi- | Cesium hydrate | CHEBI:33988 | Cesium hydroxide,hydrate(99.9%-cs) | CsOH | EINECS 244-344-1 | cesium;hydroxide | AKOS015904638
Storage
Room temperature,Argon charged
Shipped In
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Size
Status
Price
Qty
10g
C432316-10g
3
$91.90
50g
C432316-50g
1
$328.90
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Why this grade

≥99.9% metals basis, 50 wt. % in H2O for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature,Argon charged Ships FedEx DG Service Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 22 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Application

Cesium hydroxide solution is used to make porous cesium titanosilicates, potential ion-exchange materials for cleanup of radioactive wastes.CsOH impregnated in FAU zeolites enhanced their basic properties without affecting the FAU framework.It can effectively catalyse the condensation of methyl propionate with formaldehyde to yield methyl methacrylate.

Specifications

Synonyms
Caesium hydroxide [UN2682] [Corrosive] | Cesium hydroxide monohydrate, >=99.5% trace metals basis | Cesium, di-mu-hydroxydi- | Cesium hydrate | CHEBI:33988 | Cesium hydroxide, hydrate(99.9%-cs) | CsOH | EINECS 244-344-1 | cesium;hydroxide | AKOS015904638
Specifications & Purity
≥99.9% metals basis, 50 wt. % in H2O
Storage
Room temperature, Argon charged
Shipped In
FedEx DG Service
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥99.9% metals basis
Names and Identifiers
Pubchem Sid504753880
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504753880
Canonical Smiles[OH-].[Cs+]
IUPAC Namecesium;hydroxide
InChIKeyHUCVOHYBFXVBRW-UHFFFAOYSA-M
INCHI1S/Cs.H2O/h;1H2/q+1;/p-1
Isomeric SMILES [OH-].[Cs+]
WGK Germany 3
UN Number 2681
Packing Group II
Molecular Weight 149.91
Reaxy-Rn 11342933
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=11342933&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

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✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomInorganic compounds
SuperclassMixed metal/non-metal compounds
ClassAlkali metal oxoanionic compounds
SubclassAlkali metal hydroxides
Intermediate Tree Nodes Not available
Direct ParentAlkali metal hydroxides
Alternative Parents Inorganic salts  Inorganic oxides  Inorganic hydrides  
Molecular FrameworkNot available
Substituents Alkali metal hydroxide - Inorganic hydride - Inorganic oxide - Inorganic salt
DescriptionThis compound belongs to the class of inorganic compounds known as alkali metal hydroxides. These are inorganic compounds in which the largest oxoanion is hydroxide, and in which the heaviest atom not in an oxoanion is an alkali metal.
External Descriptors caesium molecular entity - alkali metal hydroxide
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

5 results found

Lot NumberCertificate TypeDateItem
E2609090Certificate of AnalysisNov 07, 2023 C432316
K2324165Certificate of AnalysisNov 07, 2023 C432316
K2324166Certificate of AnalysisNov 07, 2023 C432316
K2324167Certificate of AnalysisNov 07, 2023 C432316
K2324168Certificate of AnalysisNov 07, 2023 C432316
Chemical and Physical Properties
SolubilityHighly soluble in water.
Sensitivityair sensitive
Molecular Weight149.913 g/mol
XLogP3
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count1
Rotatable Bond Count0
Exact Mass149.908 Da
Monoisotopic Mass149.908 Da
Topological Polar Surface Area1.000 Ų
Heavy Atom Count2
Formal Charge0
Complexity2.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count2
Citations of This Product
References
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12. Wei Du, Xiaomin Zhang, Songze Li, Xin Xie.  (2024)  Novel Perspective on Sevoflurane-Induced Cognitive Dysfunction: Implications of Neuronal SIRPα and Microglial Synaptic Remodeling.  ACS Chemical Neuroscience,      [PMID:39644326] [10.1021/acschemneuro.4c00485]
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14. Qianwen Zhu, Yifan Yue, Xiejun Wang, Baohe Wang, Jing Zhu, Jing Ma.  (2024)  SiO2-Supported DMDAAC-Modified Heteropoly Acid as Highly Active and Stability Catalysts for Methacrolein Oxidation.  INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,      [PMID:] [10.1021/acs.iecr.4c01463]
15. Qi Li, Hongfei Pan, Xiege Huang, Wei Xi, Wenmao Tu, Haining Zhang, Haolin Tang.  (2025)  Atomized potassium-assisted hydrogen generation from ammonia decomposition over ruthenium loaded carbon-based catalysts.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2025.166994]
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