Europium(III) nitrate

Europium(III) nitrate
Names
IUPAC name
Europium trinitrate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.333 Edit this at Wikidata
  • InChI=1S/Eu.3NO3.6H2O/c;3*2-1(3)4;;;;;;/h;;;;6*1H2/q+3;3*-1;;;;;;
    Key: JVYYYCWKSSSCEI-UHFFFAOYSA-N
  • [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.O.O.[Eu+3]
Properties
Eu(NO3)3
Molar mass 337.985 g/mol
446.081 g/mol (hexahydrate)
Melting point 65[1] °C (149 °F; 338 K) (hexahydrate) decomposes
Soluble
Hazards
GHS labelling:
GHS03: OxidizingGHS07: Exclamation mark
Warning
H272, H315, H319, H335
P210, P220, P221, P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P405, P501
Related compounds
Other anions
 Europium(III) phosphate
Europium(III) arsenate
Other cations
 Samarium(III) nitrate
Gadolinium(III) nitrate
Related compounds
 Europium(II) nitrate
Europium(III) oxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Europium(III) nitrate hexahydrate under fluorescent lamp (left) and UV light (right).

Europium(III) nitrate is an inorganic compound with the formula Eu(NO3)3·x(H2O). The hexahydrate is a common salt. It forms colorless hygroscopic crystals.

Preparation

The salt is usually obtained by dissolving europium(III) oxide (Eu2O3) in nitric acid produces europium(III) nitrate.[2]

Eu2O3 + 6 HNO3 → 2 Eu(NO3)3 + 3 H2O

Structure

Like all trinitates of the lanthanides, dilute (<0.01 M) solutions of consists of the aquo complex [Eu(H2O)x]3+ where x = 8 or 9. At higher concentrations, the binding of nitrate to Eu is observed.[3]

Complexes

Europium(III) nitrate reacts with anions and other Lewis bases to form complexes. For example, with 1,3,5-trimesic acid, europium metal-organic framework, a coordination polymer, under hydrothermal conditions.[4]

References

  1. ^ Melnikov, P.; Arkhangelsky, I. V.; Nascimento, V. A.; De Oliveira, L. C. S.; Silva, A. F.; Zanoni, L. Z. (2017). "Thermal properties of europium nitrate hexahydrate Eu(NO3)3·6H2O" (PDF). Journal of Thermal Analysis and Calorimetry. 128 (3): 1353–1358. doi:10.1007/s10973-016-6047-9. S2CID 99674207.
  2. ^ Odent, Guy; Charetteur, Elisabeth; Duperray, Marie H. Crystallization, radiocrystallographic characterization, and infrared absorption spectra of hexahydrates and pentahydrates of nitrates and lanthanides. Revue de Chimie Minerale, 1975. 12 (1): 17-23.
  3. ^ Yatsenko, Alexandr V.; Gloriozov, Igor P.; Zhokhova, Nelly I.; Paseshnichenko, Ksenia A.; Aslanov, Leonid A.; Ustynyuk, Yuri A. (2021). "Structure of lanthanide nitrates in solution and in the solid state: DFT modelling of hydration effects". Journal of Molecular Liquids. 323. doi:10.1016/j.molliq.2020.115005.
  4. ^ Habimana, Fabien; Huo, Yanxia; Jiang, Sai; Ji, Shengfu. Synthesis of europium metal-organic framework (Eu-MOF) and its performance in adsorptive desulfurization. Adsorption, 2016. 22 (8): 1147-1155. DOI:10.1007/s10450-016-9838-1.