Promethium(III) chloride
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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.
Quick Facts Names, Identifiers ...
![]() Glowing powder mixture of promethium(III) chloride and zinc sulfide | |
![]() Crystal structure | |
Names | |
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Other names
Promethium chloride; Promethium trichloride | |
Identifiers | |
3D model (JSmol) |
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ChemSpider | |
ECHA InfoCard | 100.034.004 ![]() |
EC Number |
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PubChem CID |
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Properties | |
Cl3Pm | |
Molar mass | 251 g·mol−1 |
Density | 4.19 g/cm3 (calc., XRD)[1] |
Melting point | 655 °C (1,211 °F; 928 K)[2] |
Structure | |
Trigonal, hP8 | |
P63/m, No. 176[1] | |
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).
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