Academic literature on the topic 'Solutions of lanthanide nitrates'

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Journal articles on the topic "Solutions of lanthanide nitrates"

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Keskinov, V. A., A. V. Kudrova, O. V. Valueva, and A. K. Pyartman. "Extaction of lanthanide (III) nitrates from aqueous solutions with n-octanol." Russian Journal of Applied Chemistry 77, no. 9 (2004): 1559–60. http://dx.doi.org/10.1007/s11167-005-0072-y.

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Kuz’micheva, Galina, Alexander Trigub, Alexander Rogachev, Andrey Dorokhov, and Elena Domoroshchina. "Physicochemical Characterization and Antimicrobial Properties of Lanthanide Nitrates in Dilute Aqueous Solutions." Molecules 29, no. 17 (2024): 4023. http://dx.doi.org/10.3390/molecules29174023.

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This work presents the results of studying dilute aqueous solutions of commercial Ln(NO3)3 · xH2O salts with Ln = Ce-Lu using X-ray diffraction (XRD), IR spectroscopy, X-ray absorption spectroscopy (XAS: EXAFS/XANES), and pH measurements. As a reference point, XRD and XAS measurements for characterized Ln(NO3)3 · xH2O microcrystalline powder samples were performed. The local structure of Ln-nitrate complexes in 20 mM Ln(NO3)3 · xH2O aqueous solution was studied under total external reflection conditions and EXAFS geometry was applied to obtain high-quality EXAFS data for solutions with low con
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Coles, Simon, Laura McCormick McPherson, Andrew Platt, and Kuldip Singh. "Solid State and Solution Structures of Lanthanide Nitrate Complexes of Tris-(1-napthylphosphine Oxide)." Molecules 29, no. 11 (2024): 2580. http://dx.doi.org/10.3390/molecules29112580.

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Coordination complexes of lanthanide metals with tris-1-naphthylphosphine oxide (Nap3PO, L) have not been previously reported in the literature. We describe here the formation of lanthanide(III) nitrate complexes Ln(NO3)3L4 (Ln = Eu to Lu) and the structures of [Ln(NO3)3L2]·2L (Ln = Eu, Dy, Ho, Er) and L. The core structure of the complexes is an eight-coordinate [Ln(NO3)3L2] with the third and fourth ligands H-bonded via their oxygen atoms to one of the naphthyl rings. The structures are compared with those of the analogous complexes of triphenylphosphine oxide and show that the Ln-O(P) bond
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Safiulina, Alfiya M., Alexey V. Lizunov, Evgenii I. Goryunov, and Valery K. Brel. "Extraction system based on N-diphenylphosphoryl- N’-n-octylurea for the separation of f- elements from multicomponent nitric acid solutions." Vestnik Тomskogo gosudarstvennogo universiteta. Khimiya, no. 35 (2024): 192–200. https://doi.org/10.17223/24135542/35/15.

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The extraction of actinides and lanthanides using phosphorylurea deriva-tives from nitric acid solutions in presence of the background of nitrates Fe(III), Ni(II), Cr(III), Zr(IV), etc. has been studied. The possibility of using N-diphenylphosphoryl-N'-n-octylurea for efficient extraction separation of actinides and lanthanides from SNF reprocessing solutions has been demonstrated. A basic technological scheme is proposed.
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M.F.M.EID. "Thermodynamic Stabilities of Lanthanides-2-Thiophenylhydrazodimedone Complexes in Dioxane-Water Media." Journal of Indian Chemical Society Vol. 74, Feb 1997 (1997): 97–102. https://doi.org/10.5281/zenodo.5875123.

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Chemistry Department. Faculty of Educations. Ain Shams University. Roxy, Cairo, Egypt <em>Manuscript received 30 January 1995, revised 12 July 1995, accepted 30 August 1995</em> The thermodynamic parameters for the formation of 1 : 1 and 1 : 2 complexes between lanthanide cations and 2-thiophenylhydrazodimedone(2-TPHD) have been determined by potentiometric titrations in 75% (v/v) dioxane-water solution of 0.1 <em>M</em> (KNO<sub>3</sub>) ionic strength. The stepwise Gibbs energies of metal complexes varied in the sequence, &Delta;<em>G</em><sub>1</sub> &gt; &Delta;<em>G</em><sub>2</sub> and t
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Bünzli, Jean-Claude G., and Catherine Mabillard. "FT-IR investigation of the interaction between dimethylsulphoxide (DMSO) and some lanthanide nitrates in acetonitrile solutions." Journal of the Less Common Metals 126 (December 1986): 379–88. http://dx.doi.org/10.1016/0022-5088(86)90326-7.

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A., S. GAHLAUT, CHATURVEDI BEENA, and C. SHARMA R. "Studies on Quaternary Complexes of some Rare Earth Metals." Journal of Indian Chemical Society Vol. 63, June 1986 (1986): 608–9. https://doi.org/10.5281/zenodo.6272222.

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Department of Chemistry, Agra University, Agra-282 004 <em>Manuscript received 23 September 1986, revised 25 March 1986,&nbsp;accepted 21&nbsp;</em>April <em>1986</em> Studies on Quaternary Complexes of some Rare Earth Metals.
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Belair, S., C. Lamouroux, M. Tabarant, A. Labet, C. Mariet, and P. Dannus. "Modeling of the Extraction of Lanthanide Nitrates from Aqueous Solutions Over a Wide Range of Activities by CMPO." Solvent Extraction and Ion Exchange 22, no. 5 (2004): 791–811. http://dx.doi.org/10.1081/sei-200035602.

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Pyartman, A. K., V. A. Keskinov, and A. V. Kudrova. "Extraction of Lanthanide(III) Nitrates from Aqueous Nitrate Solutions with Tri-n-butyl Phosphate in Hexane and Tetradecane (Two- and Three-Phase Systems)." Radiochemistry 47, no. 4 (2005): 382–86. http://dx.doi.org/10.1007/s11137-005-0106-6.

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Ohta, A., H. Kagi, H. Tsuno, and M. Nomura. "Coordination study of lanthanide and yttrium in aqueous nitrate solutions." Geochimica et Cosmochimica Acta 70, no. 18 (2006): A454. http://dx.doi.org/10.1016/j.gca.2006.06.914.

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Dissertations / Theses on the topic "Solutions of lanthanide nitrates"

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BONAL, CHRISTINE. "Etude thermodynamique de la complexation des cations lanthanide trivalents par les anions nitrate en solution aqueuse." Clermont-Ferrand 2, 1997. http://www.theses.fr/1997CLF21913.

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La microcalorimetrie a ete appliquee pour la premiere fois a l'etude de la complexation de toute la serie des cations lanthanide (a l'exception du promethium) par l'anion nitrate dans l'eau. Les valeurs d'enthalpie libre, d'enthalpie et d'entropie de complexation ont ete determinees a une force ionique donnee. Les enthalpies de formation des complexes lnno#3#2#+ ont egalement ete estimees en utilisant un modele base sur la comparaison des chaleurs de dilution des nitrates et des perchlorates de lanthanides dans l'eau donnees dans la litterature. Les grandeurs ainsi calculees sont en bon accord
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Gao, Chongxia 1963. "Activity coefficients of glycine, DL-serine and DL-valine in aqueous solutions containing nitrates at 298.15K." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=30244.

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Both an electrochemical and an isopiestic methods were used to measure the mean activity coefficients of amino acids in water-electrolyte-amino acid systems. The electrochemical method used an electrochemical cell with an anion and a cation ion selective electrodes, each measured versus a double junction reference electrode. The activity coefficients of the electrolyte were obtained from the e.m.f measurements for four systems at 298.15K. The amino acids were glycine, DL-serine and DL-valine and the electrolyte were KNO3 and NaNO3. The isopiestic method was applied to measure the activity of w
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Gao, Chongxia. "Activity coefficients of glycine, DL-serine and DL-valine in aqueous solutions containing nitrates at 298.15 K." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0032/MQ64220.pdf.

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Ruas, Alexandre. "Caractérisation de l'écart à l'idéalité de solutions concentrées de sels d'actinide et de lanthanide : contribution de la théorie BIMSA /." [Gif-sur-Yvette] : [CEA Saclay, Direction des systèmes d'information], 2006. http://catalogue.bnf.fr/ark:/12148/cb40993647x.

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Thèse de doctorat--Chimie--Paris 11, 2006.<br>BIMSA = binding mean sperical approximation. La couv. porte en plus : "Direction de l'énergie nucléaire" Bibliogr. p. 120-130. Résumé en français et en anglais.
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Qafsaoui, Wafaa. "Sensibilité du cuivre pur ou faiblement allié à la germination des piqûres dans des solutions tampons contenant des ions chlorures, sulfates ou nitrates." Toulouse, INPT, 1992. http://www.theses.fr/1992INPT054G.

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La sensibilite a la corrosion par piqures du cuivre pur ou faiblement allie dans des solutions tampons a ete determinee par analyse statistique des temps d'induction des piqures. Cette sensibilite est quantifiee par la vitesse de germination des piqures deduite des distributions des temps d'induction qui obeissent a une loi exponentielle. Quand le film passif n'a pas le temps d'evoluer pendant les essais (cas ou les temps d'induction sont courts), la resistance a la corrosion par piqures ne varie pas de facon significative avec le temps et la vitesse de germination des piqures est constante. P
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Hartridge, Adrian. "Lanthanide doped ceria thin films as possible counter electrode materials in electrochromic devices." Thesis, University of Warwick, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367148.

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CHARRIN, NICOLAS. "Contribution a la caracterisation de l'ecart a l'idealite des solutions concentrees d'electrolytes : application aux cas des nitrates de plutonium et uranium (iv)." Paris 6, 1999. http://www.theses.fr/1999PA066106.

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L'objectif de ce travail est d'etablir une base de donnees binaires, se rapportant aux coefficients d'activite des nitrates de plutonium et uranium (iv), qui permettra de rendre compte beaucoup plus scrupuleusement des effets de milieu dans les operations d'extraction liquide-liquide mises en jeu dans le retraitement des combustibles irradies. Le premier chapitre s'attache a etablir la problematique d'acquisition des donnees binaires d'actinides au degre d'oxydation (iv) qui est liee a deux caracteristiques de ce type d'electrolyte : ses proprietes radioactives, et ses proprietes physico-chimi
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Jacob, Jérome. "Modélisation et simulation dynamique de procédés de traitement des eaux de type biofiltre : traitement de systèmes d'équations différentielles partielles et algébriques (EDPA)." Toulouse, INPT, 1994. http://www.theses.fr/1994INPT038G.

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Le sujet de cette these concerne la simulation dynamique des biofiltres (procedes aux multiples avantages, de plus en plus utilises dans les stations d'epuration, vis a vis des procedes a boues activees). Dans la premiere partie de la these est elabore un modele dynamique general de biofiltre immerge, prenant en compte les aspects biologiques (elimination des pollutions carbonees et azotees, croissance de la biomasse), physiques (filtration des matieres en suspension) et hydrodynamiques (ecoulement liquide piston, colmatage du filtre). Le modele, concu sous une forme generale, peut etre utilis
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VIGOUROUX, CECILE. "Microdynamique des solutions : influence des espèces paramagnétiques sur la relaxation en RMN." Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10068.

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Ce travail concerne l'etude de differents systemes modeles en solution, representant les interactions inter- ou intramoleculaires. L'agent de perturbation est une espece paramagnetique. Nous utilisons le tempol (radical nitroxyde neutre), l'anion nitrosodisulfonate (radical nitroxyde charge) ou des cations lanthanide trivalents. La methode consiste a mesurer des taux de relaxation spin-reseau et des coefficients de diffusion translationnelle par resonance magnetique nucleaire, puis a elaborer un modele theorique ou les valeurs calculees sont les plus proches possibles des valeurs experimentale
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PEREIRA, ELAINE. "Desenvolvimento e validação de metodologia analítica para quantificação de urânio em compostos do ciclo do combustível nuclear por espectroscopia no infravermelho com transformada de Fourier (FTIR)." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26372.

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Submitted by Claudinei Pracidelli (cpracide@ipen.br) on 2016-06-22T11:26:33Z No. of bitstreams: 0<br>Made available in DSpace on 2016-06-22T11:26:33Z (GMT). No. of bitstreams: 0<br>Tese (Doutorado em Tecnologia Nuclear)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP
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Book chapters on the topic "Solutions of lanthanide nitrates"

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Gandotra, Karun, and B. S. Randhawa. "Mössbauer studies of nanosized ferrites prepared by the combustion of metal nitrates–oxalyl dihydrazide solutions." In ICAME 2007. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-78697-9_112.

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Chizhik, V. I., A. V. Rushai, V. V. Matveev, and N. R. Skrynnikov. "Lanthanide (III) Ions Coordination and Water Mobility in Aqueous Solutions: Solvent Nuclear Magnetic Relaxation Study." In 25th Congress Ampere on Magnetic Resonance and Related Phenomena. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-76072-3_109.

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Pettinari, Claudio, Andrei Drozdov, and Yuriy Belousov. "Luminescent Materials with Turn-on and Ratiometric Sensory Response Based on Coordination Compounds of Lanthanides." In Rare Earth Elements - Emerging Advances, Technology Utilization, and Resource Procurement [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.109189.

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Luminescent lanthanide complexes serve as a unique set of tools for creating sensory materials. The most significant types of sensory response in such materials are the turn-on/off response, when the analyte causes an increase or decrease in the emission intensity, respectively, as well as the ratiometric response, which manifests itself as a change in the ratio of luminescence intensities at different wavelengths. In this paper, we consider two of the most technologically advanced types of luminescent sensor materials based on lanthanide compounds—“turn on” and ratiometric sensors. The produc
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Ruas, Alexandre, Philippe Moisy, Jean-Pierre Simonin, Olivier Bernard, Jean-François Dufrêche, and Pierre Turq. "Lanthanide Salts Solutions: Representation Of Osmotic Coefficients Within the Binding Mean Spherical Approximation." In Recent Advances in Actinide Science. The Royal Society of Chemistry, 2006. http://dx.doi.org/10.1039/bk9780854046782-00584.

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Marzouk Trifi, Ikhlass, Beyram Trifi, and Lasâad Dammak. "Removal of Nitrate and Nitrite by Donnan Dialysis: Optimization According to Doehlert Design." In Recent Advances on Nitrification and Denitrification [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.112482.

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The removal of nitrate and nitrite simultaneously was investigated by Donnan dialysis (DD) using a Response Surface Methodology (RSM) approach. DD is a membrane process that consists of cross-ion exchange having the same electric charge through an ion-exchange membrane separating two solutions. In addition to being easy to handle, DD process is continuous, economical, requiring only few chemicals and low pumping energy. Statistical tools were applied to investigate the simultaneous removal of nitrates and nitrites by DD. The RSM is an efficient statistical strategy to design experiments, build
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Somya, Amita, and Amit Prakash Varshney. "Ion Exchange and Zeolites." In Advancements in Zeolites and Micro-Meso Porous Hierarchical Materials. IGI Global, 2025. https://doi.org/10.4018/979-8-3373-0320-8.ch005.

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Water pollution is a critical global issue requiring sustainable treatment methods. Ion exchange and zeolite-based processes are effective solutions due to their efficiency in pollutant removal and alignment with sustainability principles. This chapter explores their role in mitigating water pollution. Ion exchange is widely used for removing heavy metals, nitrates, and harmful ions due to its high selectivity and regenerability. Zeolites, naturally occurring aluminosilicate minerals, have a porous structure, large surface area, and high cation exchange capacity, making them ideal for water tr
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V. Kalinina, Marina, Daria A. Dyuskina, Irina G. Polyakova, Sergey V. Mjakin, Maxim Yu. Arsent’ev, and Olga A. Shilova. "Synthesis and Investigation of Ceramic Materials for Medium-Temperature Solid Oxide Fuel Cells." In Smart and Advanced Ceramics and Applications [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.105108.

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Finely dispersed (СeO2)1-x(Sm2O3)x (x = 0.02; 0.05; 0.10); La1-xSrxNiO3, La1-xSrxCoO3 and La1-xSrxFe0.7Ni0.3O3 (x = 0.30; 0.40) mesoporous xerogel powders are synthesized by co-crystallization of the corresponding nitrates with ultrasonic processing and used to obtain nanoscale ceramic materials with cubic fluorite-like, orthorhombic, and perovskite-like tetragonal crystal structure, respectively, with CSR ∼ 64–81 nm (1300°C). Physicochemical characterization of the obtained ceramics revealed that (СeO2)1-x(Sm2O3)x features with open porosity 2–6%, while for La1-xSrxNiO3, La1-xSrxCoO3, and La1
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Conference papers on the topic "Solutions of lanthanide nitrates"

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Mickalonis, J. I. "Corrosion of Steel in Simulated Nuclear Waste Solutions." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94117.

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Abstract Processing of inhibited nuclear waste to forms for long-term storage will cause waste tank environments to have dynamic conditions. During processing compositional changes in the waste may produce a corrosive environment for the plain carbon steel tanks. Large concentrations of nitrates which corrode steel are contained in the waste. Nitrite and hydroxides are added to inhibit any corrosion. Concentration changes of nitrate and nitrite were investigated to identify corrosion regimes that may occur during processing. Corrosion testing was performed with cyclic potentiodynamic polarizat
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Bodescu, Gheorghe A., Romina G. Daraban, Norbert B. Mih�ly, et al. "Control of the WWTP Water Line Using Traditional and Model Predictive Approaches." In The 35th European Symposium on Computer Aided Process Engineering. PSE Press, 2025. https://doi.org/10.69997/sct.175378.

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Wastewater treatment and resources recovery from large wastewater flowrates of the municipalities and circular bio-based economy ask for efficient control solutions. The paper presents solutions for operating the wastewater treatment plant, based on advanced process control methods aimed to merge the benefits of the cooperation between the lower-level regulatory control loops and the upper-level model predictive control strategy. The lower-level is designed to regulate the nitrification in the aerated bioreactors by controlling the Dissolved Oxygen or the ammonia concentration and to control t
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Smuleac, Laura, Florin Imbrea, Adrian Smuleac, Raul Pascalau, and Radu Bertici. "THE INFLUENCE OF AGRICULTURAL ACTIVITIES ON THE QUALITY OF UNDERGROUND WATER IN THE CENTRAL AREA OF THE BANAT PLAIN UNDER THE CONDITIONS OF ADAPTATION TO CLIMATE CHANGE." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024v/3.2/s11.16.

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In the context of global climate change, groundwater is not only a vital source for human survival, but also a strategic resource for the sustainable development of local and global economies. The protection and effective management of these resources must be top priorities for everyone involved in environmental planning and management. The purpose of this work is to monitor the quality of groundwater from two water drillings located in the south of Timisoara and four water drillings in the west of the locality. The samples were taken in the year 2023 and were subjected to several analyzes (pH
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Anderko, A., N. Sridhar, C. S. Brossia, and G. Tormoen. "Modeling Localized Corrosion in Complex Process Environments in the Presence of Inhibitors." In CORROSION 2006. NACE International, 2006. https://doi.org/10.5006/c2006-06215.

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Abstract A recently developed methodology for predicting the long-term occurrence of localized corrosion has been applied to systems containing chlorides and various inorganic inhibitors. The key element of this methodology is the computation of the repassivation potential using a mechanistic model that considers competitive processes at the metal – salt film – solution interface in the limit of repassivation. A database of repassivation potentials has been established for type 316L stainless steel in contact with a large number of solutions that combine chlorides with hydroxides, molybdates,
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Anderko, Andre, Narasi Sridhar, Marta A. Jakab, and Garth Tormoen. "Modeling the Combined Effect of Chlorides and Oxyanions on Localized Corrosion." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08272.

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Abstract Repassivation potentials of stainless steels and nickel-base alloys have been investigated in aqueous environments containing chloride ions as aggressive species and selected oxyanions as inhibitive species. An extensive database of repassivation potentials has been established for six alloys (UNS N06600, N06690, S31254, S32205, UNS S41425, and S31603) in contact with solutions that combine chlorides with hydroxides, molybdates, vanadates, sulfates, and nitrates at various concentrations and temperatures. This database has been used to validate and calibrate a previously developed mec
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Sumyanova, Tsagana B., Nataliya E. Borisova, Darya Y. Volkova, and Roman Pankov. "Study of the complexation reactions between dichloro-substituted 1,10-phenanthroline-2,9-dicarboxamide and lanthanide nitrates." In Laser Physics, Photonic Technologies, and Molecular Modeling, edited by Vladimir L. Derbov. SPIE, 2021. http://dx.doi.org/10.1117/12.2590745.

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Chen, Jin, Xuegang Liu, Yanchao Zhang, Qian’ge He, and Jianchen Wang. "Solids Formation Behavior of Simulated High-Level Liquid Waste During Long-Term Storage." In 18th International Conference on Nuclear Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/icone18-29590.

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High-level liquid waste (HLLW) generated from reprocessing process contains actinides, lanthanides, fission products (FP) and a significant amount of nitrate ion. The partitioning and transmutation concept has been introduced for reducing the long-term hazards of HLLW. Several chemical separation processes mainly based on solvent extraction methods have been proposed to treat HLLW. However, solids consisting mainly Mo and Zr are known to form in HLLW during its long-term storage, Solid formations influence the composition of HLLW and the downstream solvent extraction process. To understand the
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Smirnova, K. V., D. A. Shutov, A. N. Ivanov, and V. V. Rybkin. "Plasma-solution synthesis of a solid phase from solutions of iron and cobalt nitrates of various concentrations." In 8th International Congress on Energy Fluxes and Radiation Effects. Crossref, 2022. http://dx.doi.org/10.56761/efre2022.n1-o-046701.

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The solution of the fundamental problem of the physicochemical interaction of plasma with solutions of transition metal salts has practical applications in the field of creating new materials and purifying water from heavy metal ions. Plasma-solution synthesis has established itself as a simple and effective method for obtaining ultrafine materials with new properties. The formation of precipitation under the action of atmospheric pressure glow discharge on an iron and cobalt nitrates solution, which was the anode, was studied. It turned out that the rate of formation increases with an increas
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Moisy, Ph. "Contribution to the Characterization of Deviations from Ideality of Concentrated Electrolyte Solutions: The Case of Tetravalent Actinide Nitrates." In PLUTONIUM FUTURES - THE SCIENCE: Third Topical Conference on Plutonium and Actinides. AIP, 2003. http://dx.doi.org/10.1063/1.1594624.

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Ilgen, Anastasia. "Vibrational properties of water confined in mesoporous silica and lanthanide adsorption in silica and alumina nanopores." In Proposed for presentation at the Gordon Research Conference "Water and Aqueous Solutions" held July 24-29, 2022 in Holderness, NH. US DOE, 2022. http://dx.doi.org/10.2172/2006380.

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Reports on the topic "Solutions of lanthanide nitrates"

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Gogolski, Jarrod, Tracy Rudisill, and Robert Lascola, Jr. Direct Extraction of Lanthanide Oxides and Nitrates in Tributyl Phosphate. Office of Scientific and Technical Information (OSTI), 2023. http://dx.doi.org/10.2172/2202376.

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