Rubidium

Base Information

• Chemical Name: Rubidium
• CAS No.: 7440-17-7
• Molecular Formula: Rb
• Molecular Weight: 755.342
• Hs Code.: 2805199090
• European Community (EC) Number: 231-126-6
• UN Number: 1423
• UNII: MLT4718TJW
• DSSTox Substance ID: DTXSID4064686
• Wikipedia: Rubidium
• Wikidata: Q895
• NCI Thesaurus Code: C95191
• ChEMBL ID: CHEMBL1201326
• Mol file: 7440-17-7.mol

Synonyms:Rubidium

Chemical Property of Rubidium

Chemical Property:

• Melting Point: 38-39oC(lit.)
• Boiling Point: °Cat760mmHg
• Flash Point: °C
• PSA: 0.00000
• Density: g/cm³
• LogP: 0.11250
• Sensitive.: moisture sensitive
• Water Solubility.: soluble in acids and alcohol [HAW93]
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 84.91178974
• Heavy Atom Count: 1
• Complexity: 0
• Transport DOT Label: Dangerous When Wet

Purity/Quality:

98% ^*data from raw suppliers

Rubidium (99.9+%) (prescored ampoule) ^*data from reagent suppliers

Safty Information:

• Pictogram(s): Reacts vigorously with air and water, must be stored under kerosene or similar liquid, dangerous fire and explosion risk. Metal causes serious skin burns.
• Hazard Codes: Xi,C,F
• Statements: 36/37/38-36/38-34-14/15
• Safety Statements: 26-36/37/39-43-45-36

MSDS Files:

SDS file from LookChem

Useful:

• Chemical Classes: Metals -> Elements, Metallic
• Canonical SMILES: [Rb]
• Recent ClinicalTrials: A Study Comparing Rituximab/Bendamustin(RB) Alternating With Rituximab/Bendamustin/Cytarabin(RBAC) With RB Therapy in Elderly Patients With Mentle Cell Lymphoma
• Physical Properties: Silvery-white metal; body-centered cubic crystals; ductile; soft and very light (the fourth lightest metallic element); Mohs hardness 0.3; density 1.522 g/cm3 at 18°C; melts at 39.3°C; density of the liquid metal 1.472 g/mL at 39°C; vaporizes at 689°C producing a blue vapor; vapor pressure 1 torr at 294°C and 10 torr at 387°C; electrical resistivity 11.6 microhm-cm at 0°C and 13.1 mirohm-cm at 25°C; viscosity 0.484 centipoise at 100°C; magnetic susceptibility 0.09×10–6 cgs units at 18°C; thermal neutron absorption cross section 0.73 barns; reacts violently with water.
• Uses: Rubidium metal and its salts have very few commercial applications. They are used in research involving magnetohydrodynamics and thermoionic experiments. Rubidium is used in photocells. The metal also is a getter of oxygen in vacuum tubes. The beta-emitter rubidium –87 is used to determine age of some rocks and minerals. Radioisotopes of rubidium have been used as radioactive tracers to trace the flow of blood in the body. The iodide salt treats goiters. Rubidium salts are in pharmaceuticals as soporifics, sedatives, and for treating epilepsy. Because rubidium is a much larger atom than lithium or sodium, it gives up its outer valence electron easily, thus becoming a positive ion (oxidation state = Ru+). Rubidium forms numerous compounds, but only a few are useful. One of the main uses for rubidium is as a getter in vacuum tubes used in early radios, TVs, and cathode-ray tubes. When rubidium gas is placed in sealed glass cells along with an inert gas, it becomes a rubidium-gas cell clock. Because of the consistent and exact frequency (vibrations) of it atoms, it is a very accurate timekeeper. Rubidium and selenium are used in the manufacture of photoelectric cells, sometimes called electric eyes. Rubidium is a very caustic alkali (base) with a high pH value that makes it an excellent reducing agent (highly electropositive) in industry and chemical laboratories. A unique use is its ability to locate brain tumors. It is a weak radioisotope able to attach itself to diseased tissue rather than healthy tissue, thus making detection possible.
• Physical properties: Rubidium is a silvery-white lightweight solid at room temperature, but it melts at just 38.89°C (102°F), which is just over the human body's normal temperature. It's boiling point is 686°C, it's density is 1.532 g/cm3, and it has an oxidation state of +1.

Technology Process of Rubidium

There total 1 articles about Rubidium which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

monensin(1-) ion → C36H61O11(1-)*Rb(1+) (7440-17-7)

Guidance literature:

With rubidium ion; In ethanol; at 25 ℃; Rate constant;

DOI:10.1021/ja00332a035

Refernces