Tags
Viewed products
Cesium Hydroxide (chemical formula...
Cesium Sulfate (chemical formula...
HP2140
New product
Cesium Hydroxide (chemical formula CsOH) is an inorganic compound soluble in water, alcohol, and ether. It is the basic material for preparing various cesium salts. Heeger Materials is a professional supplier and manufacturer of high-quality Cesium Hydroxide, offering competitive prices and customized solutions to meet specific requirements.
In Stock
Warning: Last items in stock!
Availability date:
| Density | 3.68 g/cm3 |
| Melting Piont | 272 ℃ |
| Molecular Formula | CsOH |
| Appearance | White Crystalline Powder |
| Molecular Weight | 149.91 g/mol |
| Purity | 99.0%| 99.5%| 99.9% |
| CAS | 21351-79-1 |
| Boiling Point | NA |
Cesium Hydroxide (CsOH) is a white crystalline powder. It is easily hygroscopic and soluble in water, alcohol, and ether. It can be used in glass, ceramics, pharmaceutical intermediates, etc.

Cesium Hydroxide | CsOH | CAS 21351-79-1 belongs to the cesium salts range and is selected for controlled chemical identity, assay, hydrate state, trace impurities and packaging appropriate for reactive or moisture-sensitive salts. It is commonly used in catalysts, scintillation and optical materials, specialty glass, laboratory synthesis, electronic materials and chemical research. When requesting a quote, confirm chemical formula, assay or purity, anhydrous or hydrate form, trace impurity and moisture limits, storage condition, documentation, packaging and quantity.
For material comparison or adjacent product forms, browse cesium salts, lithium salts and rubidium salts.
What information is needed to source Cesium Hydroxide | CsOH | CAS 21351-79-1? Please confirm the required purity, hydrate or anhydrous form, impurity and moisture limits, quantity, packaging, storage conditions, documentation and intended use for Cesium Hydroxide | CsOH | CAS 21351-79-1.
Chemical Composition | Content | |||
CsOH (%, ≥) | 99.0 | 99.5 | 99.9 | |
Impurities | Li | 0.001 | 0.001 | 0.0005 |
K | 0.1 | 0.05 | 0.005 | |
Na | 0.02 | 0.01 | 0.001 | |
Ca | 0.005 | 0.005 | 0.001 | |
Mg | 0.001 | 0.001 | 0.0005 | |
Fe | 0.001 | 0.0005 | 0.0005 | |
Al | 0.005 | 0.005 | 0.001 | |
SiO2 | 0.005 | 0.005 | 0.002 | |
Rb | 0.5 | 0.2 | 0.005 | |
Heavy Metal (Pb) | 0.01 | 0.0005 | 0.005 | |
Cesium Hydroxide (CsOH) should be stored in a sealed container in a dry and cool place, unexposed to air for an extended period. HM offers a 2-ply PE inner layer and an outer aluminum-plastic vacuum-sealed packaging including 100g/bag, 500g/bag, 1kg/bag, and 25kg/drum, or customized according to specific requirements.

Heeger Materials Inc., a professional supplier, and manufacturer of high-quality Cesium Group Salts including Cesium Hydroxide (CsOH), leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.
Heeger Materials Inc. was established in 2016 in Colorado, USA. We are a specialized supplier of premium-grade metals, alloys, ceramics, powders, and various other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.
Heeger Materials respects your privacy, and we will NOT sell or provide your personal data to other third parties, or allow them to use your personal data for their own purposes. However, we would like to send you information from time to time by mail or email about our products and special offers in addition to the interest categories you've selected above. Read our Privacy Policy