Rubidium carbonate

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Rubidium carbonate
IUPAC name
Rubidium carbonate
3D model (Jmol)
ECHA InfoCard 100.008.666
RTECS number FG0650000
Molar mass 230.945 g/mol
Appearance White powder,
very hygroscopic
Melting point 837 °C (1,539 °F; 1,110 K)[1]
Boiling point 900 °C (1,650 °F; 1,170 K) (decomposes)
Very soluble
−75.4·10−6 cm3/mol
Main hazards Irritant
Flash point Non-flammable
Related compounds
Other cations
Lithium carbonate
Sodium carbonate
Potassium carbonate
Caesium carbonate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Rubidium carbonate, Rb2CO3, is a convenient compound of rubidium; it is stable, not particularly reactive, and readily soluble in water, and is the form in which rubidium is usually sold.


It can be prepared by adding ammonium carbonate to rubidium hydroxide.[2]


It is used in some kinds of glass-making by enhancing stability and durability as well as reducing its conductivity. It is also used as a part of a catalyst for preparing short-chain alcohols from feed gas.[3]


  1. ^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0-07-049439-8
  2. ^
  3. ^ Canada Patents