Molekula
Cesium
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Certificate of Analysis with every batch
Cesium is a soft, silvery-gold alkali metal with high reactivity, used in specialized applications such as atomic clocks, photoelectric cells, and research in quantum technologies. It is available in high purity and is supplied in sealed containers to prevent reaction with air or moisture. CAS: 7440-46-2, Molecular formula: Cs, Molecular weight: 132.91, Storage: Ambient, Signal word: Danger. Molekula supplies cesium from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
This substance is available from Molekula on enquiry. Full specification, Safety Data Sheet and Certificate of Analysis documentation are provided with your quotation once our team confirms the grade and pack size you need.
Overview
- SKU
- 90027999
- CAS Number
- 7440-46-2
- IUPAC Name
- cesium
- Molecular Formula
- Cs
- Molecular Weight
- 132.91
- Exact Mass
- 132.9055
- SMILES
- [Cs]
- InChIKey
- TVFDJXOCXUVLDH-UHFFFAOYSA-N
- InChI
- InChI=1S/Cs
- PubChem CID
- 5354618
Synonyms
- Caesium
- Caesium 133
- caesium atom
- cesio
- Cesium atom
- Cesium element
- CESIUM METAL
- Cesium-133
- Cesium, elemental
- Zaesium
Literature values
Published physical properties of the substance, not batch specifications.
- Appearance
- Liquid (slightly above room temperature)
- Melting Point
- 29 °C
- Boiling Point
- 685 °C
- Vapour Pressure
- 1.5 × 10⁻⁶ mmHg at 25 °C (solid)
Source: PubChem CID 5354618 (HSDB)
See the other grade of CAS 7440-46-2 →
Frequently asked questions
What is cesium used for?
Cesium is primarily used in atomic clocks, photoelectric cells, and specialized industrial applications due to its high reactivity and low work function.
What is the chemical formula and molecular weight of cesium?
The chemical formula is Cs, and the molecular weight is 132.91 g/mol.
How should cesium be stored?
Cesium should be stored at ambient temperature, typically under inert conditions such as in mineral oil or sealed containers to prevent reaction with air or moisture.
What grade of cesium does Molekula supply?
Molekula supplies cesium in high purity grade, suitable for research and specialized industrial applications.
Can Molekula supply cesium in bulk?
Yes, Molekula can supply cesium in bulk quantities; please contact our sales team for specific volume and pricing details.
What documentation comes with a cesium order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with regulatory standards.
Related products
Molekula has supplied fine chemicals and biochemicals since 1999, and its facilities are ISO 9001:2015 and ISO 14001:2015 certified. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.