Rubidium carbonate

Rubidium carbonate Basic information
Physical Properties Uses Preparation
Product Name:Rubidium carbonate
Synonyms:Carbonicacid,dirubidiumsalt;dirubidiumcarbonate;dirubidiummonocarbonate;RUBIDIUM CARBONATE;Rubidium carbonate, 99.8% metals basis;RUBIDIUM CARBONATE (99%-RB);RUBIDIUM CARBONATE (99.8+%-RB);Rubidiumcarbonate;99.99%
CAS:584-09-8
MF:CH3O3Rb
MW:148.5
EINECS:209-530-9
Product Categories:Chemical Synthesis;Inorganic BasesMetal and Ceramic Science;Rubidium Salts;Salts;Synthetic Reagents;metal carbonate
Mol File:584-09-8.mol
Rubidium carbonate Structure
Rubidium carbonate Chemical Properties
Melting point 837 °C
Boiling point decomposes at 740℃ [KIR82]
storage temp. Store below +30°C.
solubility 4500g/l
form Powder
color White
PH11.7 (50g/l, H2O, 20℃)
Water Solubility soluble
Sensitive Hygroscopic
InChIKeyWPFGFHJALYCVMO-UHFFFAOYSA-L
CAS DataBase Reference584-09-8(CAS DataBase Reference)
EPA Substance Registry SystemCarbonic acid, dirubidium salt (584-09-8)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26-36/37/39-37/39
WGK Germany 2
RTECS FG0650000
3-10
TSCA Yes
HS Code 2836 99 17
ToxicityLD50 orally in Rabbit: 2625 mg/kg
MSDS Information
ProviderLanguage
Rubidium carbonate English
SigmaAldrich English
ACROS English
ALFA English
Rubidium carbonate Usage And Synthesis
Physical PropertiesColorless crystals or white powder; monoclinic structure; very hygroscopic; melts at 837°C; decomposes above 900°C; very soluble in water.
UsesRubidium carbonate is used in special glass and in fiber optics. It enhances stability and durability of glass, reducing its conductivity. It also is used in the preparation of Rb metal and other rubidium salts.
PreparationRubidium carbonate is an intermediate in recovery of rubidium from lepidolite. The mineral, on prolonged heating with concentrated sulfuric acid, converts to alums.
The mixed alum solution, on treatment with ammonia or potassium carbonate, forms carbonates of potassium, rubidium and cesium. Rubidium carbonate is separated from other alkali metal carbonates by fractional crystallization (see Rubidium)
The carbonate salt also may be obtained by passing carbon dioxide through a solution of rubidium hydroxide in a fluorocarbon or nickel container. The solution is evaporated to yield the product carbonate.
Also, the salt may be prepared by adding ammonium carbonate to a solution of rubidium hydroxide. The solution is evaporated to dryness to expel ammonia.


DescriptionRubidium carbonate is a white powder or colorless crystal with a monoclinic crystal structure. Its chemical formula is Rb2CO3. Rubidium is often sold as rubidium carbonate The chemical properties of rubidium carbonate are stable. Rubidium carbonate is very hygroscopic, soluble in water, and insoluble in alcohol. It can be converted to other rubidium compounds by heating or by reacting with acids. Rubidium carbonate is used in the preparation of rubidium metal, other rubidium salts,and rubidium single crystals. It is also used as a specific glass additives, catalysts, analytical reagents and others. For example, rubidium carbonate can be incorporated into the metal oxide electron transport layers, which can improve the lifetime of quantum-dot light emitting diodes[1]. It can also exist as an alkaline in the high-temperature nucleophile synthesis of a semi-crystalline, aromatic poly(ether ketone)[2].
Chemical PropertiesWhite powder.Extremely hygroscopic; soluble in water. Dissociates above 900C.
UsesSpecial glass formulations.
UsesRubidium carbonate is used as a raw materials for preparation of rubidium metal and various rubidium salts, for the manufacturing of special glass, for the manufacturing of high energy density micro cells and crystal scintillation counters. It is also used as a part of a catalyst for preparing short-chain alcohols from feed gas.
HazardStrong irritant to tissue.
References[1] Yujin Lee, Hyo-Min Kim, Jeonggi Kim, Jin Jang, Remarkable lifetime improvement of quantum-dot light emitting diodes by incorporating rubidium carbonate in metal-oxide electron transport layers, Journal of Materials Chemistry C, 2019, 7, 10082-10091.
[2] Kate JC Lim, Paul Cross, Peter Mills, Howard M Colquhoun, Controlled variation of monomer sequence distribution in the synthesis of aromatic poly(ether ketone)s, 2016, 28.
Rubidium carbonate Preparation Products And Raw materials
Rubidium hydroxide RUBIDIUM HYDROXIDE HYDRATE Calcium carbonate Carbonate Ethylene carbonate Potassium carbonate Lithium carbonate Rubidium carbonate Polycarbonate RUBIDIUM Sodium bicarbonate RUBIDIUM FORMATE HYDRATE RUBIDIUM BICARBONATE Dimethyl carbonate POLY(BISPHENOL A CARBONATE) Ammonium bicarbonate RUBIDIUM CARBONATE (RB2CO3) 99.9% 25G Sodium carbonate

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