Praseodymium(III) chloride
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| Names | |||
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| IUPAC name
Praseodymium(III) chloride | |||
| Other names
Praseodymium chloride; praseodymium trichloride | |||
| Identifiers | |||
3D model (JSmol) |
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| ECHA InfoCard | 100.030.710 | ||
PubChem CID |
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| UNII | |||
CompTox Dashboard (EPA) |
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| Properties | |||
| PrCl3 | |||
| Molar mass | 247.24 g/mol (anhydrous) 373.77 g/mol (heptahydrate) | ||
| Appearance | blue-green solid (anhydrous) light green solid (heptahydrate) | ||
| Density | 4.02 g/cm3 (anhydrous) 2.250 g/cm3 (heptahydrate) | ||
| Melting point | 786 °C (1,447 °F; 1,059 K) | ||
| Boiling point | 1,710 °C (3,110 °F; 1,980 K) | ||
| 104.0 g/100 ml (13 °C) | |||
| +44.5·10−6 cm3/mol | |||
| Structure | |||
| hexagonal (UCl3 type), hP8 | |||
| P63/m, No. 176 | |||
| Tricapped trigonal prismatic (nine-coordinate) | |||
| Hazards | |||
| Occupational safety and health (OHS/OSH): | |||
Main hazards |
Irritant | ||
| Related compounds | |||
Other anions |
Praseodymium(III) oxide, Praseodymium(III) fluoride Praseodymium bromide praseodymium iodide | ||
Other cations |
Cerium(III) chloride Neodymium(III) chloride | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |||
Praseodymium(III) chloride is the inorganic compound with the formula PrCl3. Like other lanthanide trichlorides, it exists both in the anhydrous and hydrated forms. It is a blue-green solid that rapidly absorbs water on exposure to moist air to form a light green heptahydrate.