584-09-8 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.
Check Digit Verification of cas no
The CAS Registry Mumber 584-09-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,8 and 4 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 584-09:
(5*5)+(4*8)+(3*4)+(2*0)+(1*9)=78
78 % 10 = 8
So 584-09-8 is a valid CAS Registry Number.
InChI:InChI=1/CH2O3.2Rb/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2