Rubidium
Rubidium (CAS: 7440-17-7, Formula: Rb, Molar Mass: 85.47 g/mol) is a soft, silvery-white alkali metal known for its extreme reactivity. It is one of the most electropositive elements. Rubidium finds use in the development of specialised atomic clocks, in caesium chloride density gradient separation, and as a catalyst in chemical synthesis. Its unique properties also lend themselves to applications in materials science and electronics.
Atomic Clocks
Rubidium is employed in the construction of highly accurate atomic clocks. Its specific atomic transition frequency allows for precise timekeeping, essential for navigation systems and scientific research.
Chemical Synthesis
As a highly reactive alkali metal, Rubidium can serve as a catalyst or reagent in various organic and inorganic synthesis pathways. Its electron-donating properties are valuable in specific chemical transformations.
Materials Science
Rubidium and its compounds are investigated for their unique optical and electronic properties. This includes research into solid-state physics and the development of new materials for specialised applications.
Density Gradient Separation
Rubidium salts are utilised in density gradient centrifugation, particularly for separating biological molecules such as DNA and proteins based on their buoyant density.
| Molecular weight | 85.47 |
|---|---|
| Empirical formula | Rb |
| Assay | 99.6% trace metals basis |
| Form | ingot |
| Boiling point | 686 °C(lit.) |
| Density | 1.53 g/mL at 25 °C(lit.) |
| Impurities tested | 0.2-0.4% Cs |
| Melting point | 38-39 °C(lit.) |
Hazard statements
- H260In contact with water releases flammable gases
- H314Causes severe skin burns and eye damage
Precautionary statements
- P223Do not allow contact with water
- P231Handle under inert gas
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P370In case of fire
- P422
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 1423 4.3 / PGI |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 14/15-34 |
| Safety statements (S) | 26-36/37/39-43-45 |
| Supplemental hazards | Reacts violently with water. |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Packaging | pkg of Packaged in: Breakseal Ampule |
|---|---|
| Resistivity | 11.0 μΩ-cm, 20°C |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Rubidium primarily used for?
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Rubidium is primarily used in specialised atomic clocks, as a catalyst or reagent in chemical synthesis, and in materials science research due to its unique physical and chemical properties.
What are the CAS number and formula for Rubidium?
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The CAS number for Rubidium is 7440-17-7 and its chemical formula is Rb.
What grade and purity does Tech Serve Solutions supply for Rubidium?
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Tech Serve Solutions supplies Rubidium with an assay of 99.6% on a trace metals basis. This product is not represented as USP, BP, or EP grade.
How should Rubidium be handled safely?
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Rubidium is a highly reactive metal that reacts violently with water, releasing flammable hydrogen gas and causing burns. It must be handled under an inert atmosphere or oil, and appropriate personal protective equipment, including eye protection, gloves, and respiratory protection, must be worn. Refer to the Safety Data Sheet for full handling procedures.
How is Rubidium packaged and shipped?
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Rubidium is supplied in breakseal ampules, packaged to ensure safe handling and transport. Consult our shipping department for international export regulations and details.
How can I request a quote or sample for Rubidium?
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To request a quote or sample of Rubidium, please contact our sales team via the website or phone with your specific requirements.
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