Radium chloride

Radium chloride is an inorganic compound with the chemical formula RaCl2. It is a radium salt of hydrogen chloride. It was the first radium compound isolated in a pure state. Marie Curie and André-Louis Debierne used it in their original separation of radium from barium. The first preparation of radium metal was by the electrolysis of a solution of this salt using a mercury cathode.

Radium chloride

An ampoule containing radium chloride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.020
EC Number
  • 233-035-7
UNII
  • InChI=1S/2ClH.Ra/h2*1H;/q;;+2/p-2 Y
    Key: RWRDJVNMSZYMDV-UHFFFAOYSA-L Y
  • InChI=1/2ClH.Ra/h2*1H;/q;;+2/p-2
    Key: RWRDJVNMSZYMDV-NUQVWONBAG
  • Cl[Ra]Cl
Properties
RaCl2
Molar mass 296.094 g/mol
Appearance Colorless solid, glows blue-green
Density 4.9 g/cm3
Melting point 900 °C (1,650 °F; 1,170 K)
245 g/L (20 °C)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 radioactive, highly toxic, corrosive
GHS labelling:
H300, H310, H330, H350, H370, H373, H410
NFPA 704 (fire diamond)
4
0
1
Related compounds
Other anions
 Radium bromide
Other cations
 Beryllium chloride
Magnesium chloride
Calcium chloride
Strontium chloride
Barium chloride
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
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