Cesium hydroxide monohydrate (CAS 35103-79-8) — formula CsHO, molecular weight 149.913; category inorganic chemicals.
Cesium hydroxide monohydrate (CAS 35103-79-8) is a chemical raw material in the inorganic chemicals category. Its molecular formula CsHO comprises 1 Cs, 1 H, 1 O atoms. Its molecular weight is about 149.913. Reported physicochemical data: melting point around 522 °F (NIOSH, 2024). As a sourcing and distribution partner we help locate and compare this item across domestic and cross-border channels, arranging samples and batch orders with full COA and compliance files.
| CAS Number | 35103-79-8 |
|---|---|
| Molecular Formula | CsHO |
| Molecular Weight | 149.913 |
| Melting Point | 522 °F (NIOSH, 2024) |
| Applications | polymerization catalyst, also used in photography and in electrolyte solutions for storage batteries, Battery Manufacturing, Photographic Processing, 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 |
| Category | Inorganic Chemicals |
Documented applications: polymerization catalyst, also used in photography and in electrolyte solutions for storage batteries, Battery Manufacturing, Photographic Processing, 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.
Cesium hydroxide monohydrate is an inorganic compound with CAS registry number 35103-79-8 and molecular formula CsHO (molecular weight 149.913), belonging to the inorganic chemicals segment of chemical raw materials.
CAS number: 35103-79-8
Its molecular formula CsHO comprises 1 Cs, 1 H, 1 O atoms.
Also known as: Cesium hydroxide monohydrate · 一水氢氧化铯
Category: inorganic chemicals
The CAS registry number of Cesium hydroxide monohydrate is 35103-79-8.
Molecular formula CsHO, molecular weight 149.913.
It is also registered under: Cesium hydroxide monohydrate, 一水氢氧化铯.
Recorded applications: polymerization catalyst, also used in photography and in electrolyte solutions for storage batteries, Battery Manufacturing, Photographic Processing, 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.
Category: Inorganic Chemicals.
Packaging is agreed per order, from lab-scale packs to bulk, and confirmed with each order rather than fixed on the page. A Certificate of Analysis (COA) ships with every batch and MSDS is available; where the end use carries a regulatory limit (food contact, pharmaceutical or cosmetic), state the standard at enquiry and the grade is set against it.
Independent reference data for Cesium hydroxide monohydrate (CAS 35103-79-8), compiled from public chemistry databases.
| CAS Registry Number | 35103-79-8 |
|---|---|
| PubChem CID | 62750 |
| Molecular formula | CsHO |
| IUPAC name | cesium hydroxide |
| UNII (FDA) | 458ZFZ6235 |
| Molecular Weight | 149.913 |
|---|---|
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 1 |
| Rotatable Bond Count | 0 |
| Exact Mass | 149.90819161 |
| Monoisotopic Mass | 149.90819161 |
| Topological Polar Surface Area | 1 |
| Heavy Atom Count | 2 |
| Melting Point | 522 °F (NIOSH, 2024) |
|---|---|
| Melting Point | 342.3 °C |
| Melting Point | MP: 272.3 °C |
| Melting Point | 272 °C |
| Melting Point | 522 °F |
| Melting Point | 315 °C |
| Solubility | 395 % at 59 °F (NIOSH, 2024) |
| Solubility | 300 g/100 g water at 30 °C |
| Solubility | (59 °F): 395% |
| Density | 3.68 g/cu cm |
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
| Reported hazard statements | H302 (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]
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.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
中文页面: 一水氢氧化铯