Europium(III) nitrate

{{chembox

| Verifiedfields =

| Watchedfields =

| verifiedrevid =

| Name = Europium(III) nitrate

| ImageFile = Europium nitrate.jpg

| IUPACName = Europium trinitrate

|Section1={{Chembox Identifiers

| CASNo = 10138-01-9

| CASNo_Comment = (anhydrous)

| CASNo_Ref = {{cascite|correct|CAS}}

| CASNo2 = 10031-53-5

| CASNo2_Comment = (hexahydrate)

| CASNo2_Ref = {{cascite|correct|CAS}}

| PubChem = 54604362

| PubChem_Comment = (anhydrous)

| PubChem2 = 202256

| PubChem2_Comment = (hexahydrate)

| ChemSpiderID = 23353

| ChemSpiderID_Comment = (anhydrous)

| ChemSpiderID2 = 175150

| ChemSpiderID2_Comment = (hexahydrate)

| InChI=1S/Eu.3NO3.6H2O/c;3*2-1(3)4;;;;;;/h;;;;6*1H2/q+3;3*-1;;;;;;

| InChIKey = JVYYYCWKSSSCEI-UHFFFAOYSA-N

| SMILES = [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.O.O.[Eu+3]

}}

|Section2={{Chembox Properties

| Formula = Eu(NO3)3

| MolarMass = 337.985 g/mol
446.081 g/mol (hexahydrate)

| Solubility = Soluble

| MeltingPtC = 65{{cite journal | url=https://link.springer.com/content/pdf/10.1007/s10973-016-6047-9.pdf | doi=10.1007/s10973-016-6047-9 | title=Thermal properties of europium nitrate hexahydrate Eu(NO3)3·6H2O | date=2017 | last1=Melnikov | first1=P. | last2=Arkhangelsky | first2=I. V. | last3=Nascimento | first3=V. A. | last4=De Oliveira | first4=L. C. S. | last5=Silva | first5=A. F. | last6=Zanoni | first6=L. Z. | journal=Journal of Thermal Analysis and Calorimetry | volume=128 | issue=3 | pages=1353–1358 | s2cid=99674207 }}

| MeltingPt_notes = (hexahydrate) decomposes

}}

|Section4={{Chembox Structure

| Coordination =

| CrystalStruct =

| SpaceGroup =

}}

|Section6={{Chembox Hazards

| GHSPictograms = {{GHS03}}{{GHS07}}

| GHSSignalWord = Warning

| HPhrases = {{H-phrases|272|315|319|335}}

| PPhrases = {{P-phrases|210|220|221|261|264|271|280|302+352|304+340|305+351+338|312|321|332+313|337+313|362|370+378|403+233|405|501}}

}}

|Section8={{Chembox Related

| OtherAnions = Europium(III) phosphate
Europium(III) arsenate

| OtherCations = Samarium(III) nitrate
Gadolinium(III) nitrate

| OtherCompounds = Europium(II) nitrate
Europium(III) oxide

}}

}}

File:Europium nitrate UV comparison.jpg

Europium(III) nitrate is an inorganic compound with the formula {{chem2|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.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.

: Eu2O3 + 6 HNO3 → 2 Eu(NO3)3 + 3 H2O

Structure

Like all trinitrates of the lanthanides, dilute (<0.01 M) solutions of consists of the aquo complex {{chem2|[Eu(H2O)_{x}](3+)}} where x = 8 or 9. At higher concentrations, the binding of nitrate to Eu is observed.{{cite journal |doi=10.1016/j.molliq.2020.115005 |title=Structure of lanthanide nitrates in solution and in the solid state: DFT modelling of hydration effects |date=2021 |last1=Yatsenko |first1=Alexandr V. |last2=Gloriozov |first2=Igor P. |last3=Zhokhova |first3=Nelly I. |last4=Paseshnichenko |first4=Ksenia A. |last5=Aslanov |first5=Leonid A. |last6=Ustynyuk |first6=Yuri A. |journal=Journal of Molecular Liquids |volume=323 }}

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.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.

References

{{reflist}}

{{Europium compounds}}

{{Nitrates}}

Category:Europium(III) compounds

category:nitrates