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Cesium hydroxide

Description Sources
Product Name
Cesium hydroxide
CAS No.
21351-79-1
Chemical Name
Cesium hydroxide
Synonyms
CsOH;Caesium hydoxide;Cesiumhydroxide,50%aqueoussolution(99.9%-Cs);Cesium hydoxide;Cesium hydroxide;cesiumhydroxidedimer;Cesium hydroxide dimer;Caesium Hydroxide 99.9%;cesiumhydroxide(cs(oh));caesiumhydroxide,solution
CBNumber
CB7357929
Molecular Formula
CsHO
Formula Weight
149.91
MOL File
21351-79-1.mol
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Cesium hydroxide Property

Melting point:
272 °C(lit.)
Density 
3.68 g/mL at 25 °C(lit.)
solubility 
Miscible with ethanol.
form 
Liquid
pka
11.6[at 20 ℃]
color 
Colorless
Water Solubility 
soluble
Sensitive 
Air Sensitive
Merck 
13,2022
Exposure limits
ACGIH: TWA 2 mg/m3
NIOSH: TWA 2 mg/m3
Stability:
Stable. Incompatible with acids. Absorbs carbon dioxide from the air.
CAS DataBase Reference
21351-79-1(CAS DataBase Reference)
NIST Chemistry Reference
Cesium hydroxide(21351-79-1)
EPA Substance Registry System
Cesium hydroxide (21351-79-1)
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Safety

Hazard Codes 
C
Risk Statements 
22-35-34
Safety Statements 
26-36/37/39-45-37/39-27-28
RIDADR 
UN 2682 8/PG 2
OEB
B
OEL
TWA: 2 mg/m3
WGK Germany 
3
3
TSCA 
Yes
HazardClass 
8
PackingGroup 
II
HS Code 
28259090
Hazardous Substances Data
21351-79-1(Hazardous Substances Data)
Toxicity
LD50 i.p. in rats: 100 mg/kg (Cochran)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H302Harmful if swallowed

H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P310Immediately call a POISON CENTER or doctor/physician.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
232041
Product name
Cesium hydroxide solution
Purity
50 wt. % in H2O, 99.9% trace metals basis
Packaging
10g
Price
$53.2
Updated
2024/03/01
Sigma-Aldrich
Product number
232041
Product name
Cesium hydroxide solution
Purity
50 wt. % in H2O, 99.9% trace metals basis
Packaging
50g
Price
$140
Updated
2024/03/01
Alfa Aesar
Product number
016505
Product name
Cesiumhydroxide,50%w/waq.soln.
Purity
99%(metalsbasis)
Packaging
500g
Price
$923
Updated
2024/03/01
Alfa Aesar
Product number
010020
Product name
Cesiumhydroxide,50%w/waq.soln.
Purity
99.9%(metalsbasis)
Packaging
25g
Price
$170
Updated
2024/03/01
Alfa Aesar
Product number
010020
Product name
Cesium hydroxide, 50% w/w aq. soln., 99.9% (metals basis)
Packaging
(c)25g
Price
$160
Updated
2023/06/20
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Cesium hydroxide Chemical Properties,Usage,Production

Description

Cesium Hydroxide, as a water-soluble source of cesium, is typically found in any of several hydrate forms. Its applications are relatively limited due to its volatility and high basicity – corroding glass – as well as the high cost of cesium extraction. These applications include use as an electrolyte in alkaline batteries, particularly below the freezing point of water, in color photography, and as a catalyst for synthesis of organics such as phenylacetylene and polymers. Furthermore, it also finds use as a precursor in the manufacture of cesium salts.

Sources

https://www.alfa.com/en/catalog/B22480/
https://www.alfa.com/en/catalog/013233/
https://en.wikipedia.org/wiki/Caesium_hydroxide
https://pubchem.ncbi.nlm.nih.gov/compound/Cesium_hydroxide#section=Use-and-Manufacturing
http://www.chemicalland21.com/industrialchem/inorganic/CESIUM%20HYDROXIDE.htm
https://www.americanelements.com/cesium-hydroxide-hydrate-12260-45-6

Description

Cesium hydroxide is a colorless-to-yellowcrystalline compound. It is often used in a water solution.Molecular weight=142.92; Specific gravity (H2O:1) 53.68; Freezing/Melting point=272℃. HazardIdentification (based on NFPA 704 M Rating System):Health 3, Flammability 0, Reactivity 0. Highly soluble inwater; solubility 395% at 15℃.

Chemical Properties

Cesium hydroxide is a colorless-to-yellow crystalline compound. It is often used in a water solution.

Physical properties

White to yellowish fused crystalline mass; highly deliquescent; very alkaline; density 3.68 g/cm3; melts 272°C; highly soluble in water; soluble in ethanol; aqueous solution is very alkaline.

Uses

Cesium hydroxide is used in the preparation of porous cesium titanosilicates, which are potential ion-exchange materials utilized for radioactive wastes cleaning purpose. It is also involved in the preparation of other cesium salts. Further, it is used as an electrolyte in alkaline storage batteries and as a catalyst in organic synthesis. In addition to this, it is used in color photography.

Definition

ChEBI: Caesium hydroxide is an alkali metal hydroxide and a caesium molecular entity.

Application

Cesium hydroxide also exerts unusual effects in organic reactions, such as the controlled alkylation of amines. In this instance, the cesium ion itself is explicitly involved in the reaction. The hydroxide base promotes an alkylation of a primary amine, while the Cs+ ion weakly coordinates to the amine such that further alkylation is inhibited, preventing formation of dialkyl and trialkyl amines.
Cesium hydroxide solution is used in industrial catalysis. Cesium acts as apromoter e.g. in the production of polyols. Polyols are important raw materials for the production of polyurethane foams. Their synthesis profits from use of cesium hydroxide as base catalyst. In polyol synthesis isomerization of the starting material propylene oxide is an adverse side reaction eventually leading to chain termination in the polymerization with polyisocyanate. The tendency of polyols to undergo isomerization is minimized when using cesium hydroxide, as isomerization tendency decreases in the order Li > Na > K > Rb > Cs.

Preparation

Cesium hydroxide is prepared by electrolysis of cesium salts to obtain cesium metal, which then reacts with water to yield hydroxide. It also is prepared by the action of barium hydroxide with an aqueous solution of cesium sulfate.

General Description

Cesium hydroxide is a colorless to yellow crystalline solid. Harmful to skin and eyes. Used in electric storage batteries.

Air & Water Reactions

Dilution with water may generate enough heat to cause steaming or spattering.

Reactivity Profile

CESIUM HYDROXIDE,SOLUTION neutralizes acids exothermically to form salts plus water. Reacts with certain metals (such as aluminum and zinc) to form oxides or hydroxides of the metal and generate gaseous hydrogen. May initiate polymerization reactions in polymerizable organic compounds, especially epoxides. May generate flammable and/or toxic gases with ammonium salts, nitrides, halogenated organics, various metals, peroxides, and hydroperoxides. May serve as a catalyst. Reacts when heated above about 84°C with aqueous solutions of reducing sugars other than sucrose, to evolve toxic levels of carbon monoxide [Bretherick, 5th Ed., 1995].

Hazard

A poison. Skin, eye, and upper respiratory tract irritant.

Health Hazard

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Fire Hazard

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.

Flammability and Explosibility

Non flammable

Safety Profile

Poison by intraperitoneal route. Moderately toxic by ingestion. A powerful caustic. A corrosive skin and eye irritant. See also CESIUM.

Potential Exposure

Cesium hydroxide may be used as a raw material for other cesium salts; such as the chloride which in turn may be used to produce cesium metal. Cesium metal is used in electronic devices.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least30 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions,Cesium hydroxide 591including resuscitation mask) if breathing has stopped andCPR if heart action has stopped. Transfer promptly to amedical facility. When this chemical has been swallowed,get medical attention. If victim is conscious, administerwater or milk. Do not induce vomiting.

storage

Color Code—White: Corrosive or Contact Hazard:Store separately in a corrosion-resistant location. Prior toworking with cesium hydroxide you should be trained on itsproper handling and storage. Cesium hydroxide should bestored in silver or platinum away from air because it reactsviolently with oxygen. Store in tightly closed containers ina cool, well-ventilated area away from moisture and incompatible materials listed above.

Shipping

UN2682 Cesium hydroxide, Hazard class: 8; Labels: 8-Corrosive material. UN2681 Cesium hydroxide, solution, Hazard class: 8; Labels: 8-Corrosive material

Incompatibilities

Cesium hydroxide is the strongest base known. Keep away from all acids. It must be stored in silver or platinum and out of contact with air because of its reactivity with glass. CsOH causes the generation of considerable heat in contact with water or moisture. Contact with many organic compounds, many metals (i.e., aluminum, lead, tin, zinc), glass, oxygen, or carbon dioxide causes a violent reaction.

Cesium hydroxide Preparation Products And Raw materials

Raw materials

Preparation Products

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Cesium hydroxide Suppliers

Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44688
Advantage
61
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com
Country
China
ProdList
14435
Advantage
57
Sinopharm Chemical Reagent Co,Ltd.
Tel
86-21-63210123
Fax
86-21-63290778 86-21-63218885
Email
sj_scrc@sinopharm.com
Country
China
ProdList
9815
Advantage
79
Maya High Purity Chemicals
Tel
+86 (573) 82222445 (0)18006601000 452520369
Fax
+86 (573) 82222643
Email
sales@maya-r.com
Country
China
ProdList
11707
Advantage
57
Chengdu Ai Keda Chemical Technology Co., Ltd.
Tel
4008-755-333 18080918076
Fax
028-86757656
Email
800078821@qq.com
Country
China
ProdList
9718
Advantage
55
Thermo Fisher Scientific
Tel
800-810-5118
Fax
+86-10-84193589
Email
cnchemical@thermofisher.com
Country
China
ProdList
17770
Advantage
75
Beijing innoChem Science & Technology Co.,Ltd.
Tel
400-810-7969 010-59572699
Fax
010-59572688
Email
ningzi.li@inno-chem.com.cn
Country
China
ProdList
6134
Advantage
55
9ding chemical ( Shanghai) Limited
Tel
4009209199
Fax
86-021-52271987
Email
sales@9dingchem.com
Country
China
ProdList
22514
Advantage
55
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View Lastest Price from Cesium hydroxide manufacturers

Hebei Mojin Biotechnology Co., Ltd
Product
Cesium hydroxide 21351-79-1
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-12-08

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