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Cesium hydroxide monohydrate

CAS 35103-79-8CsHOMW 149.913

Cesium hydroxide monohydrate (CAS No. 35103-79-8) is supplied by Jinan Shenghe Chemical Co., Ltd. with a typical purity of 按批次COA提供(不公开发布). Main applications include Inorganic Chemicals. Bulk quantities are available with COA; purity and packaging are subject to batch COA and order confirmation.

Specifications

CAS Number35103-79-8
Molecular FormulaCsHO
Molecular Weight149.913
Melting Point522 °F (NIOSH, 2024)
Purity按批次COA提供(不公开发布)
Packaging按订单/批次确认(不公开发布)
ApplicationsInorganic Chemicals
CategoryInorganic Chemicals

Where it is used

Inorganic Chemicals

Packaging & Supply

Packaging按订单/批次确认(不公开发布)
Purity按批次COA提供(不公开发布)
StorageSealed, cool and dry place
Lead TimeIn stock / per order

Documents & Support

COA provided with every batch; MSDS and technical documents available on request. Email us with product name and CAS number for a quote within one business day.

Frequently Asked Questions

What is the CAS number of Cesium hydroxide monohydrate?

The CAS number of Cesium hydroxide monohydrate is 35103-79-8.

What purity and packaging are available?

Typical purity is 按批次COA提供(不公开发布), supplied in 按订单/批次确认(不公开发布), with COA provided.

What are the applications of Cesium hydroxide monohydrate?

Main applications include Inorganic Chemicals.

How do I buy Cesium hydroxide monohydrate or get a quote?

Email info@591daili.com or reach us on WhatsApp with the product name, CAS number and required quantity; quotes within one business day. Supplier: Jinan Shenghe Chemical Co., Ltd..

PubChem Public Data

Description

Cesium hydroxide monohydrate · CAS 35103-79-8 · CsHO. UNII 458ZFZ6235. Melting Point: 522 °F (NIOSH, 2024); Melting Point: 342.3 °C; Melting Point: MP: 272.3 °C.

Identification

CAS Registry Number35103-79-8
PubChem CID62750
Molecular formulaCsHO
IUPAC namecesium hydroxide
UNII (FDA)458ZFZ6235

Computed Descriptors

Molecular Weight149.913
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count1
Rotatable Bond Count0
Exact Mass149.90819161
Monoisotopic Mass149.90819161
Topological Polar Surface Area1
Heavy Atom Count2
Formal Charge0
Complexity2

Physical & Chemical Properties

Melting Point522 °F (NIOSH, 2024)
Melting Point342.3 °C
Melting PointMP: 272.3 °C
Melting Point272 °C
Melting Point522 °F
Melting Point315 °C
Solubility395 % at 59 °F (NIOSH, 2024)
Solubility300 g/100 g water at 30 °C
Solubility(59 °F): 395%
Density3.68 g/cu cm

Physical description & handling notes

  • Cesium hydroxide is a colorless to yellow crystalline solid. Harmful to skin and eyes. Used in electric storage batteries.
  • Cesium hydroxide, solution appears as an aqueous solution. Strongly corrosive. Harmful to skin and eyes. Used in electric storage batteries.
  • Liquid
  • Colorless or yellowish, crystalline solid. Note: Hygroscopic (i.e., absorbs moisture from the air); [NIOSH]
  • COLOURLESS-TO-YELLOW HYGROSCOPIC CRYSTALS.
  • Colorless or yellowish, crystalline solid.

GHS Hazard Classification

Reported hazard statementsH302 (97.8%), H314 (99.6%), H318 (65.8%), H361 (19.6%), H373 (65.8%), H402, H330, H335

H302 (97.8%): Harmful if swallowed [Warning Acute toxicity, oral]

H314 (99.6%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]

Documented Uses

  • Used as a polymerization catalyst; also used in photography and in electrolyte solutions for storage batteries; [HSDB]
  • Battery Manufacturing [Category: Industry]
  • Photographic Processing [Category: Other]
  • 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.
  • Recommended as electrolyte in alkaline storage batteries at subzero temperatures, polymerization catalyst for siloxanes.
  • By adding barium hydroxide to an aqueous solution of cesium sulfate.

Synonyms

Cesium hydroxide; 21351-79-1; Caesium hydroxide; 12182-83-1; Cesium hydroxide (Cs(OH)); UN2681; UN2682; EINECS 244-344-1; 458ZFZ6235; NSC 121987; UNII-458ZFZ6235; HSDB 7906; NSC-121987; CESIUM HYDROXIDE [MI]; DTXSID7066699; CHEBI:33988

Frequently Asked Questions

What are the CAS number and molecular formula of Cesium hydroxide monohydrate?

CAS 35103-79-8; molecular formula CsHO; molecular weight — g/mol.

What other names is Cesium hydroxide monohydrate known by?

Cesium hydroxide, 21351-79-1, Caesium hydroxide, 12182-83-1, Cesium hydroxide (Cs(OH)), UN2681.

Is Cesium hydroxide monohydrate classified as hazardous?

Hazard statements reported: H302, H314, H318, H361, H373.

What are the key physical properties of Cesium hydroxide monohydrate?

Melting Point: 522 °F (NIOSH, 2024); Melting Point: 342.3 °C; Melting Point: MP: 272.3 °C; Melting Point: 272 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.

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