Radium iodide

Radium iodide
Names
Other names
Radium diiodide
Identifiers
3D model (JSmol)
  • InChI=1S/2HI.Ra/h2*1H;/q;;+2/p-2
    Key: VIUODKCIIYIXHC-UHFFFAOYSA-L
  • [I-].[I-].[Ra+2]
Properties
RaI2
Molar mass 480 g·mol−1
Appearance yellow solid
Density 5.83 g/cm3[1]
soluble
Related compounds
Other anions
Other cations
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Radium iodide is an inorganic compound of radium and iodine with the chemical formula RaI2.[1][2] It is the radium salt of hydrogen iodide, consisting of radium cations Ra2+ and iodide anions I−.

Synthesis

The salt is synthesized by the reaction of radium carbonate with hydroiodic acid:[1]

RaCO3 + 2 HI(aq) → RaI2 + H2O + CO2

References

  1. ^ a b c Weigel, F.; Trinkl, A. (1968). "Zur Kristallchemie des Radiums". Ract. 9: 36–41. doi:10.1524/ract.1968.9.1.36. S2CID 201843329.
  2. ^ Donnay, Joseph Désiré Hubert (1978). Crystal Data: Inorganic compounds 1967-1969. National Bureau of Standards. p. 0-160. Retrieved 7 June 2023.