Statements (54)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:chemical_compound
|
| gptkbp:bfsLayer |
5
|
| gptkbp:bfsParent |
gptkb:Mendeleev's_Periodic_Table
gptkb:Philae's_APXS |
| gptkbp:category |
lanthanide
|
| gptkbp:color |
silvery metallic
|
| gptkbp:discovered_by |
gptkb:Carl_Auer_von_Welsbach
|
| gptkbp:electronegativity |
[ Xe] 6s² 4f³
|
| https://www.w3.org/2000/01/rdf-schema#label |
praseodymium
|
| gptkbp:isotopes |
59
Pr-141 Pr-143 |
| gptkbp:mass |
140.907 g·mol−1
|
| gptkbp:melting_point |
3,233 ° C
931 ° C |
| gptkbp:occurs_in |
found in minerals such as monazite and bastnäsite
|
| gptkbp:population |
6.77 g/cm³
|
| gptkbp:products |
gptkb:praseodymium(III)_oxide
gptkb:praseodymium(IV)_oxide gptkb:praseodymium_chloride praseodymium acetate praseodymium arsenate praseodymium borate praseodymium bromide praseodymium carbonate praseodymium chromate praseodymium citrate praseodymium fluoride praseodymium hydroxide praseodymium iodide praseodymium molybdate praseodymium nitrate praseodymium oxalate praseodymium phosphide praseodymium phosphinate praseodymium phosphonate praseodymium selenate praseodymium silicate praseodymium sulfate praseodymium sulfide praseodymium tartrate praseodymium tellurate praseodymium thiocyanate praseodymium tungstate praseodymium vanadate |
| gptkbp:side_effect |
toxic in large amounts
|
| gptkbp:social_structure |
+3, +4
|
| gptkbp:symbol |
Pr
|
| gptkbp:uses |
gptkb:beer
glass coloring manufacturing of magnets |
| gptkbp:was_a_response_to |
reacts with water
reacts with oxygen |
| gptkbp:year_created |
1885
|