Rubidium carbonate

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.

Names
IUPAC name
Rubidium carbonate
Identifiers
  • 584-09-8 Y
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.008.666
RTECS number
  • FG0650000
  • InChI=1S/CH2O3.2Rb/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2 Y
    Key: WPFGFHJALYCVMO-UHFFFAOYSA-L Y
  • InChI=1/CH2O3.2Rb/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
    Key: WPFGFHJALYCVMO-NUQVWONBAM
  • [Rb+].[Rb+].[O-]C([O-])=O
Properties
Rb2CO3
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
Hazards
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).
Y verify (what is YN ?)
Infobox references

Preparation

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

Uses

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]

References
  1. Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0-07-049439-8
  2. Chisholm, Hugh, ed. (1911). "Rubidium" . Encyclopædia Britannica. 23 (11th ed.). Cambridge University Press. p. 809.
  3. Canada Patents


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