22541-18-0

Basic information

• Product Name: europium(3+)
• CAS NO: 22541-18-0
• Molecular Formula: Eu
• Molecular Weight: 151.9624
• Mol File: 22541-18-0.mol
• Article Data: 19

Chemical Properties

• CAS DataBase Reference: europium(3+)(CAS DataBase Reference)
• NIST Chemistry Reference: europium(3+)(22541-18-0)
• EPA Substance Registry System: europium(3+)(22541-18-0)

Safety Data

• Hazardous Substances Data: 22541-18-0(Hazardous Substances Data)

Upstream product

• 7553-56-2 iodine 
• 16910-54-6 europium(II) 
• 7722-84-1 dihydrogen peroxide 
• 31011-67-3 pentaammine pyridine cobalt(III) cation 
• 71514-37-9 {Eu_.cntnd.2.2.1}⁽³⁺⁾ 
• 65013-29-8 Eu⁽³⁺⁾*4,7,13,16,21-pentaoxa-1,10-diazabicyclo{8.8.5}tricosane cryptand 
• 7647-01-0 hydrogenchloride 
• 128703-72-0 Eu⁽³⁺⁾*C₁₂H₂₆O₄N₂={Eu(C₁₂H₂₆O₄N₂)}⁽³⁺⁾ 

Downstream Products

• 16910-54-6 europium(II) 
• 19229-79-9 zinc(II) cation 
• 14362-44-8 iodide 
• 10097-32-2 bromide 
• 557762-94-4 [Eu(4-carboxy-5,8-11-tris(carboxymethyl)-1-phenyl-2-oxa-5,8,11-triazatridecan-13-oic acid-5H)]^(2-) 
• 22541-19-1 gadolinium(III) 
• 269053-96-5 P(C₆H₅)4⁽¹⁺⁾*[Eu(C₆H₅C(O)NP(O)(OCH(CH₃)2)2)4]^(1-)=[P(C₆H₅)4][Eu(C₆H₅C(O)NP(O)(OCH(CH₃)2)2)4] 

Relevant articles and documents

Europium(III) complexed by HPSEC size-fractions of a vertisol humic acid: Small differences evidenced by time-resolved luminescence spectroscopy

The size fractionation of a humic acid (HA) by high performance size exclusion chromatography (HPSEC) was used as a proxy for the filtration effect during HA transport through a porous medium with minimum specific chemical interactions. The modification of the Eu(III)-HA complexes' formation with the different size-fractions, as compared to the bulk HA, was studied in time-resolved luminescence spectroscopy (TRLS). Clear modifications in Eu(III)-HA complexes' structures were shown and related to the molecular characteristics of the separated size-fractions. The properties of most of size-fractions did not induce a major alteration of the affinity towards Eu(III). Only the most hydrophilic fractions eluted in the tail of the chromatographic peak, representing about 11% of total fractions-weight, gave some significantly different parameters. Using a simplistic complexation model, it was found that the available complexation sites decreased with the size reduction of humic fractions.

Energy transfer in the chemiluminescent system: Eu(II)/(III)-N3--H2O2

Chemiluminescence (CL) in the systems containing Eu(II), Eu(III) ions and hydrogen peroxide has been investigated. Earlier results show that these systems are sources of excited Eu(III) ions and singlet oxygen generated in the recombination reactions of the hydroxyl radicals which originate from hydrogen peroxide decomposition. The excited Eu(III) ions undergo radiative deactivation. The addition of azide ions (N3-) to the Eu(II)/(III)-H2O2 system causes a significant increase in the chemiluminescence intensity and yield as a result of the energy transfer process from the dimers of singlet oxygen to Eu(III) ions. Taking into account the kinetic and spectral data obtained from the systems studied, the scheme of processes is proposed, and the quantum yield of chemiluminescence is estimated using the CL standard system: luminol-haemin-H2O2.

Resonance light scattering properties of Eu3+ in gold colloid

Gold colloidal containing rare-earth ions Eu3+ were prepared at room temperature. Fluorescence spectra and resonance light scattering (RLS) spectra of Eu3+ ions and gold colloid containing Eu3+ were measured. For solution

Dissociation kinetics of macrocyclic trivalent lanthanide complexes of 1-oxa-4,7,10-triazacyclododecane-4,10-diacetic acid (H2ODO2A)

The dissociation rates of LnODO2A+ complexes (ODO2A2- is the deprotonated dianion of the ligand H2ODO2A, 1-oxa-4,7,10-triazacyclododecane-4,10-diacetic acid) are all faster than those of the corresponding LnDO2A+/sup

Liquid-liquid solvent extraction of rare earths from chloride medium with sec-nonylphenoxy acetic acid and its mixtures with neutral organophosphorus extractants

In the present study, sec-nonylphenoxy acetic acid (CA100) and its mixtures with four neutral organophosphorus extractants, tri-butyl-phosphate (TBP), 2-ethylhexyl phosphonic acid di-2-ethyl ester (DEHEHP), Cyanex923, and Cyanex925 have been applied to the extraction of rare earths. Results show that all the four mixing systems do not have evident synergistic effects on the extraction of rare earths. The different extraction effects have been considered to the separation of rare earths. The four mixtures may be applied to the separation of yttrium from some certain lanthanoids at proper mole fractions of CA100. Pleiades Publishing, Ltd., 2011.