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Top-quality cesium for research & industry
High-purity cesium & compounds for research, development, and analytics. Reliable delivery, consulting, and custom solutions.
High-purity cesium for your applications
Cesium products in many forms
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Physical Properties
Melting Point
28.4°C
Boiling Point
671.0°C
Frequently Asked Questions
Our FAQs provide you with a quick overview of important topics related to our product range. If you have any further questions, we will of course also be happy to assist you personally.
Purchasing / Sales
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Why is ChemPur the right partner for cesium?
We see ourselves not just as a supplier, but as a partner for research and industry. With our wide range of cesium compounds and metal in various purities and forms, we cover both standard requirements and highly specialized applications. Our portfolio ranges from basic grades to ultra-high-purity products with purities up to 99.999%, enabling reproducible results. Additionally, you benefit from our ISO 9001:2015 certification, an international dealer network, and a reliable supply chain. We support you with technical advice and customized solutions, especially for complex requirements. As a family-run company, we stand for short decision-making paths, personal support, and long-term cooperation.
In what forms is cesium available?
We offer cesium in various forms to optimally support a wide range of applications. In addition to classic chemical compounds, we also offer cesium as a metal – particularly in ampoule form for safe handling of reactive substances.
Furthermore, our range includes numerous compound forms such as acetates, carbonates, halides, nitrates, and sulfates. This variety allows you to specifically select the appropriate form for your application – whether for synthesis processes, analytics, or material development. Depending on your needs, different container sizes are available, from small laboratory quantities to larger units. Upon request, we also realize custom forms or specifications tailored exactly to your requirements.
Which cesium compounds do we carry?
Our range includes a wide spectrum of cesium compounds for various applications. These include, among others, cesium acetate, cesium carbonate, cesium chloride, cesium bromide, cesium iodide, cesium fluoride, as well as cesium sulfate and cesium nitrate. The portfolio is complemented by specialized compounds such as cesium hydrogen carbonate.
These products are available in different purity grades – from 99% to ultra-high-purity grades with up to 99.999%. This allows us to cover both standard applications and highly sensitive research processes. Through the combination of variety, purity, and availability, we enable you to make a precise selection of the suitable cesium compound for your specific application in research, development, or industrial production.
What is cesium used for in chemistry?
Cesium plays an important role in various chemical and technological applications. In organic chemistry, it is used, for example, as a base, such as in the form of cesium carbonate, to efficiently control reactions. In analytics, cesium compounds like cesium chloride or cesium sulfate are used in density gradients or separation processes, among others. Furthermore, halides such as cesium iodide are used in optical materials or scintillation detectors. Cesium is also used in materials research, electronics, and specialized processes. Due to its unique chemical properties, it is a versatile component of modern research and development projects.
What are the advantages of high-purity cesium products?
High-purity cesium products are crucial for precise and reproducible results in research and industry. Impurities can influence chemical reactions or distort measurement results – especially in sensitive applications such as analytics or material development.
With purities up to 99.999%, our products provide a reliable basis for demanding processes. This is particularly important in the development of new materials, in catalysis, or in high-precision measurement methods. Moreover, high-purity materials increase process reliability and reduce the risk of unwanted side reactions. Thus, you benefit in the long term from more stable results and more efficient workflows in your projects.
Is cesium also available as a metal?
Yes, cesium is also available from us as a metal. Due to its high reactivity, we supply cesium metal in ampoule form to ensure safe storage and handling. The metal products offered reach purities of up to ≥ 99.985% and are available in various quantities, for example from 1 g to 25 g. This form is particularly suitable for applications with the highest purity requirements as well as for special research and development processes. Through our experience in handling sensitive materials, we ensure that you receive cesium metal reliably and safely.
Which industries primarily use cesium?
Cesium is used in numerous industries – especially wherever the highest purity, precise properties, and reliable results are crucial. These primarily include universities, research institutes, and R&D departments in companies that use cesium specifically for synthesis, analytics, and material development.
Cesium is also relevant in electronics, optics, or specialty chemicals, for example in detectors, optical materials, or specialized chemical processes. In the chemical industry, cesium is also specifically used in catalysis and development processes. The key is not only the availability of the material but the correct selection of compound, purity, and form. This is exactly where we support you: With our wide range, technical expertise, and personal advice, we help you find the optimal cesium solution for your application – reliable, efficient, and tailored to your needs.