584-09-8

Basic information

• 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 NO: 584-09-8
• Molecular Formula: CO3Rb2
• Molecular Weight: 230.94
• 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
• Article Data: 0

Chemical Properties

• Melting Point: 837 °C
• Boiling Point: 333.6 °C at 760 mmHg
• Flash Point: 169.8 °C
• Appearance: White/Powder
• Storage Temp.: Store below +30°C.
• Solubility: 4500g/l
• Water Solubility: soluble
• Sensitive: Hygroscopic
• CAS DataBase Reference: Rubidium carbonate(CAS DataBase Reference)
• NIST Chemistry Reference: Rubidium carbonate(584-09-8)
• EPA Substance Registry System: Rubidium carbonate(584-09-8)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36/37/39-37/39
• WGK Germany: 2
• RTECS: FG0650000
• F: 3-10
• TSCA: Yes
• Hazardous Substances Data: 584-09-8(Hazardous Substances Data)

Usage

Physical Properties

Colorless crystals or white powder; monoclinic structure; very hygroscopic; melts at 837°C; decomposes above 900°C; very soluble in water.

Uses

Different sources of media describe the Uses of 584-09-8 differently. You can refer to the following data:
1. Rubidium 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.
2. Special glass formulations.
3. Rubidium carbonate (Rb2O3) is used to make special types of glass.
4. Rubidium 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.

Preparation

Rubidium 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.

Chemical Properties

White powder.Extremely hygroscopic; soluble in water. Dissociates above 900C.

Hazard

Strong irritant to tissue.

InChI:InChI=1/CH2O3.2Rb/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2