Promethium(III) chloride

Promethium(III) chloride is a chemical compound of promethium and chlorine with the formula PmCl3. It is an ionic, water soluble, crystalline salt that glows in the dark with a pale blue or green light due to promethium's intense radioactivity.

Promethium(III) chloride

Glowing powder mixture of promethium(III) chloride and zinc sulfide

Crystal structure
Names
Other names
Promethium chloride; Promethium trichloride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.034.004
EC Number
  • 237-420-0
  • InChI=1S/3ClH.Pm/h3*1H;/q;;;+3/p-3
    Key: KAKNBYVEBALXNX-UHFFFAOYSA-K
  • [Cl-].[Cl-].[Cl-].[Pm+3]
Properties
Cl3Pm
Molar mass 251 g·mol−1
Density 4.19 g/cm3 (calc., XRD)
Melting point 655 °C (1,211 °F; 928 K)
Structure
Trigonal, hP8
P63/m, No. 176
Related compounds
Other anions
Promethium(III) oxide
Other cations
Neodymium(III) chloride, Samarium(III) chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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