Europium (III) nitrate

Crystal structure
	No drawing available
General
Surname	Europium (III) nitrate
other names	Europium trinitrate
Ratio formula	Eu (NO 3 ) 3
Brief description	colorless solid (pentahydrate and hexahydrate)
External identifiers / databases
EC number	233-380-3
ECHA InfoCard	100.030.333
Wikidata	Q15628213
properties
Molar mass	Eu [NO 3 ] 3 : 337.99 g · mol −1 ; Eu [NO 3 ] 3 ∙ 6H 2 O: 446.08 g · mol −1 ;
Physical state	firmly
density	3.35 g cm −3
Melting point	317 ° C ( decomposition )
solubility	soluble in water (hexahydrate)
safety instructions
H and P phrases	H: 272-315-319-335
	P: 220-261-305 + 351 + 338
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Europium (III) nitrate (Eu [NO ₃ ] ₃ ) is an inorganic salt made from europium and nitric acid . The hexa hydrate (Eu [NO ₃ ] ₃ ∙ 6H ₂ O) is the most common form which colorless hygroscopic crystals forms.

Extraction and presentation

Europium sesquioxide (Eu ₂ O ₃ ) is dissolved in nitric acid and then concentrated to dryness.

${\ displaystyle {\ ce {Eu2O3 + 6 HNO3 -> 2 Eu [NO3] 3 + 3 H2O}}}$

properties

The anhydrous europium (III) nitrate crystallizes in the Tb [NO ₃ ] ₃ type, monoclinically in the space group P 2 ₁ / c (space group no. 14) with the lattice parameters a = 1109.4 (1), b = 618 , 50 (8), c = 975.2 (1) pm , β = 93.034 (9) ° with four formula units per unit cell . Europium (III) nitrate begins to decompose at 317 ° C , which takes place in three steps to form europium sesquioxide. Template: room group / 14

First step (301–362 ° C):

{\ displaystyle {\ ce {2 Eu [NO3] 3 -> 2 EuO [NO3] + 4 NO2 + O2}}}

Second step (428–461 ° C):

{\ displaystyle {\ ce {6 EuO [NO3] -> 2 EuO [NO3] * Eu2O3 + 4 NO2 + O2}}}

Third step (575–600 ° C):

{\ displaystyle {\ ce {4 EuO [NO3] * Eu2O3 -> 6 Eu2O3 + 4 NO2 + O2}}}

The hexahydrate turns into a clear liquid at around 65 ° C (similar to other nitrate hexahydrates). This liquid begins to boil at around 112 ° C and immediately smells of gaseous nitric acid.

use

Europium (III) nitrate can react with 1,3,5-tricarboxybenzene (trimesic acid, TMA) and forms a europium metal-organic framework (Eu-MOF). Europium (III) nitrate can also be used to obtain EuPO ₄ ∙ nH ₂ O nanotubes . It is also used in the synthesis of light-emitting nanomaterials.

Individual evidence

↑ ^a ^b ^c Datasheet Europium (III) nitrate pentahydrate, 99.9% trace metals basis from Sigma-Aldrich , accessed on June 6, 2020 ( PDF ).
^ ^A ^b Robert A. Lewis: Hawley's Condensed Chemical Dictionary . John Wiley & Sons, 2016, ISBN 978-1-119-26784-3 , pp. 601 ( limited preview in Google Book search).
↑ ^a ^b Christina Heinrichs: Synthesis and characterization of anhydrous rare earth metal nitrates, acetates and oxyacetates . 1st edition. Publishing house Dr. Hut, Munich 2013, p. 1-243 .
↑ ^a ^b B. N. Ivanov-Emin, Yu N. Medvedev: The thermal decomposition of anhydrous lanthanide nitrates . In: Russian Journal of Inorganic Chemistry . tape 35 , no. 2 , 1990, p. 168-170 .
↑ Odent, Guy; Charetteur, Elisabeth; Duperray, Marie H .: Crystallization, radiocrystallographic characterization, and infrared absorption spectra of hexahydrates and pentahydrates of nitrates and lanthanides . In: Revue de Chimie Minerale . tape 12 , no. 1 , 1975, p. 17-23 .
↑ P. Melnikov, IV Arkhangelsky u. a .: Thermal properties of europium nitrate hexahydrate Eu (NO3) 3-6H2O. In: Journal of Thermal Analysis and Calorimetry. 128, 2017, p. 1353, doi : 10.1007 / s10973-016-6047-9 .
↑ Habimana, Fabien; Huo, Yanxia; Jiang, Sai; Ji, Shengfu: Synthesis of europium metal-organic framework (Eu-MOF) and its performance in adsorptive desulfurization . In: Adsorption . tape 22 , no. 8 , 2016, p. 1147-1155 , doi : 10.1007 / s10450-016-9838-1 .
↑ Tanase, Stefania; Mittelmeijer-Hazeleger, Marjo C .; Rothenberg, Gadi; Mathoniere, Corine; Jubera, Veronique; Smits, Jan MM; de Gelder, Rene: A facile building-block synthesis of multifunctional lanthanide MOFs . In: Journal of Materials Chemistry . tape 21 , no. 39 , 2011, ISSN 0959-9428 , p. 15544-15551 , doi : 10.1039 / c1jm12789f .
↑ Chitta Ranjan Patra, Gabashvili Alexandra, Sujata Patra, David Solomon Jacob, Aharon thoughts, Asher Landau, Yossi Gofer: Microwave approach for the synthesis of rhabdophane-typelanthanide orthophosphate (Ln = La, Ce, Nd, Sm, Eu, Gdand Tb) nanorods under solvothermal conditions . In: New J. Chem. Band 29 , 2005, pp. 733-739 , doi : 10.1039 / b415693e .
↑ Data sheet Europium (III) nitrate hexahydrate, REacton®, 99.9% (REO) from AlfaAesar, accessed on June 6, 2020 ( PDF )(JavaScript required) .

[Sigma-1] Datasheet Europium (III) nitrate pentahydrate, 99.9% trace metals basis from Sigma-Aldrich , accessed on June 6, 2020 ( PDF ).

[Robert_A._Lewis-2] A ^b Robert A. Lewis: Hawley's Condensed Chemical Dictionary . John Wiley & Sons, 2016, ISBN 978-1-119-26784-3 , pp. 601 ( limited preview in Google Book search).

[Heinrichs-3] Christina Heinrichs: Synthesis and characterization of anhydrous rare earth metal nitrates, acetates and oxyacetates . 1st edition. Publishing house Dr. Hut, Munich 2013, p. 1-243 .

[:0-4] B. N. Ivanov-Emin, Yu N. Medvedev: The thermal decomposition of anhydrous lanthanide nitrates . In: Russian Journal of Inorganic Chemistry . tape 35 , no. 2 , 1990, p. 168-170 .

[5] Odent, Guy; Charetteur, Elisabeth; Duperray, Marie H .: Crystallization, radiocrystallographic characterization, and infrared absorption spectra of hexahydrates and pentahydrates of nitrates and lanthanides . In: Revue de Chimie Minerale . tape 12 , no. 1 , 1975, p. 17-23 .

[DOI10.1007/s10973-016-6047-9-6] P. Melnikov, IV Arkhangelsky u. a .: Thermal properties of europium nitrate hexahydrate Eu (NO3) 3-6H2O. In: Journal of Thermal Analysis and Calorimetry. 128, 2017, p. 1353, doi : 10.1007 / s10973-016-6047-9 .

[7] Habimana, Fabien; Huo, Yanxia; Jiang, Sai; Ji, Shengfu: Synthesis of europium metal-organic framework (Eu-MOF) and its performance in adsorptive desulfurization . In: Adsorption . tape 22 , no. 8 , 2016, p. 1147-1155 , doi : 10.1007 / s10450-016-9838-1 .

[8] Tanase, Stefania; Mittelmeijer-Hazeleger, Marjo C .; Rothenberg, Gadi; Mathoniere, Corine; Jubera, Veronique; Smits, Jan MM; de Gelder, Rene: A facile building-block synthesis of multifunctional lanthanide MOFs . In: Journal of Materials Chemistry . tape 21 , no. 39 , 2011, ISSN 0959-9428 , p. 15544-15551 , doi : 10.1039 / c1jm12789f .

[9] Chitta Ranjan Patra, Gabashvili Alexandra, Sujata Patra, David Solomon Jacob, Aharon thoughts, Asher Landau, Yossi Gofer: Microwave approach for the synthesis of rhabdophane-typelanthanide orthophosphate (Ln = La, Ce, Nd, Sm, Eu, Gdand Tb) nanorods under solvothermal conditions . In: New J. Chem. Band 29 , 2005, pp. 733-739 , doi : 10.1039 / b415693e .

[Alfa-10] Data sheet Europium (III) nitrate hexahydrate, REacton®, 99.9% (REO) from AlfaAesar, accessed on June 6, 2020 ( PDF )(JavaScript required) .