Praseodymium (III) nitrate

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Structural formula
Praseodymion 3 Nitration
General
Surname Praseodymium (III) nitrate
other names
  • Praseodymium nitrate
  • Praseodymium trinitrate
Molecular formula
  • Pr (NO 3 ) 3
  • Pr (NO 3 ) 3 · n H 2 O, n = 2; 5; 6
Brief description

light green solid (hexahydrate)

External identifiers / databases
CAS number
  • 10361-80-5 (anhydrous)
  • 14483-17-1 (pentahydrate)
  • 15878-77-0 (hexahydrate)
PubChem 498125
Wikidata Q82870366
properties
Molar mass
  • 326.92 g mol −1
  • 435.01 g mol −1 (hexahydrate)
Physical state

firmly

Melting point

≈56 ° C

solubility

soluble in water, 80 g l −1 (22 ° C) (hexahydrate)

safety instructions
GHS labeling of hazardous substances
03 - Oxidising 05 - Corrosive 07 - Warning 09 - Dangerous for the environment

danger

H and P phrases H: 272-302-315-318-319-335-400-410
P: 210-220-221-261-264-270-271-273-280-301 + 312-302 + 352-304 + 340-305 + 351 + 338-310-312-321-330-332 + 313-337 + 313-362Template: P-phrases / maintenance / more than 20 phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Praseodymium (III) nitrate (Pr (NO 3 ) 3 ) is a salt of the rare earth metal praseodymium with nitric acid .

presentation

Crystals of the hexahydrate can be grown from solutions of Pr 6 O 11 in dilute nitric acid.

properties

Praseodymium (III) nitrate (hexahydrate)

Praseodymium (III) nitrate forms green crystals as hexahydrate . It is stable under normal conditions. At elevated temperatures it gradually loses its water of crystallization , above 253 ° C the anhydrous form is retained. From approx. 310 ° C, decomposition to praseodymium oxide nitrate (PrONO 3 ) and nitrogen oxides takes place.

Individual evidence

  1. ^ A b F. J. Rey, J. Martín-Gil, A. Gonzáles, FJ Martín-Gil: Kinetic analysis of thermal decomposition of praseodymium (III) nitrate hexahydrate . In: Journal of thermal analysis . tape 35 , no. 3 , May 1, 1989, ISSN  1572-8943 , pp. 805-813 , doi : 10.1007 / BF02057236 .
  2. ↑ Sigma-Aldrich: Safety data sheet . Retrieved April 8, 2020 .
  3. ↑ a b c J. Newton Friend: 346. The nitrates of neodymium and praseodymium, and their solubilities in water . In: Journal of the Chemical Society (Resumed) . 1935, ISSN  0368-1769 , p. 1430 , doi : 10.1039 / jr9350001430 .
  4. ↑ a b PubChem: Praseodymium nitrate. Retrieved April 8, 2020 .