Radium iodide

Radium iodide
Names
	Other names Radium diiodide
Identifiers
CAS Number	20610-52-0 ;
3D model (JSmol)	Interactive image;
	InChI InChI=1S/2HI.Ra/h2*1H;/q;;+2/p-2 Key: VIUODKCIIYIXHC-UHFFFAOYSA-L;
	SMILES [I-].[I-].[Ra+2];
Properties
Chemical formula	I2Ra
Molar mass	480 g·mol−1
Appearance	yellow solid
Density	5.83 g/cm3
Solubility in water	soluble
Related compounds
Related compounds	Radium bromide; Radium fluoride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Radium iodide is an inorganic compound of radium and iodide with the chemical formula RaI₂.^[1]^[2]

Synthesis

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

RaCO₃ + 2 HI → RaI₂ + H₂O + CO₂

^ ^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.
^ Donnay, Joseph Désiré Hubert (1978). Crystal Data: Inorganic compounds 1967-1969. National Bureau of Standards. p. 0-160. Retrieved 7 June 2023.