Results 161 to 170 of about 336,737 (201)

Plasma‐induced precipitation of metal ions in aqueous solutions

Journal of Chemical Technology & Biotechnology, 2019
AbstractBACKGROUNDThis work focuses on removing metal ions (Fe3+, Cu2+, and Zn2+) from aqueous solutions and real wastewater by underwater plasma.RESULTSResults show that the joint presence of Fe3+, Cu2+, and Zn2+ are needed for effective precipitation of these ions from aqueous solutions.
Anna Khlyustova, Nikolay Sirotkin, Valery Titov   +2 more
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EXTRACTION OF HEAVY METAL IONS FROM AQUEOUS SOLUTIONS

2020
In this work, model cobalt aqueous solutions were investigated using anionic surfactants and isoamyl alcohol as the organic phase. The regularities of solvent sublation of Co2 + ions from aqueous solutions are investigated and the following rational conditions of the purification process are revealed: surfactant sodium dodecyl sulfate; pH 10-10.5; the ...
Obushenko, T., Tolstopalova, N., Chyrieva, M.   +2 more
openaire   +1 more source

Removal of Heavy Metal Ions by Photoelectrodeposition in Aqueous Solutions

ECS Meeting Abstracts, 2014
In order to remove hazardous heavy metal ions dissolved in an aqueous environment, the photoelectrodeposition effect on the removal of Pb(II), Cu(II), Cd(II), and Zn(II) ions has been investigated for the (CeO2)1-X(Ln2O3)X (Ln = La, Sm, Gd) photocatalyst oxide particles combined with fine α-FeOOH particles.
Kazunori Sato, Yuhei Hoshi, Jirachaya Ayawanna, Teoh WahTzu, Nobuo Saito, Yasunobu Inoue, Hiroshi Nishiyama   +6 more
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Complexation of polymethacrylopiperidide with transition metal ions in aqueous solution

European Polymer Journal, 1984
Abstract The interactions of polymethacrylopiperidide with Cu2+, Ni2+, Co2+ and Fe3+ ions have been investigated by potentiometric and conductometric titration, ESR and u.v. spectroscopy, viscometry and sedimentation. The average number of ligands coordinating with the central metal ions and the stability constants of polymeric metal complexes were ...
E.A. Bekturov, S.E. Kudaibergenov, G.M. Zhaimina   +2 more
openaire   +1 more source

Behavior of Some Transition-Metal Ions in Aqueous Solution

The Chemical Educator, 2003
In recent decades, qualitative analysis in the curriculum has declined due to the expansion of instrumental analytical chemistry; however, it should not be forgotten that the principles of qualitative analysis are the basis of the development of several instrumental analytical techniques.
M. Valme García-Moreno, Dolores Bellido-Milla, Remedios Castro   +2 more
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The formation of weak complexes by metal ions in aqueous solutions

Russian Chemical Reviews, 1991
The modern approaches to the determination of the composition and the stepwise stability constants of weak metal complexes (Kn = 0.1–5.0) with ionic and molecular ligands in aqueous solutions are discussed. The difficulties in the unambiguous separation of the effects of the medium from those of the short-range specific interaction, described by ...
V E Mironov, V A Fedorov, I D Isaev
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Metal ions biosorption from dilute aqueous solution

International Journal of Environment and Pollution, 2008
Biosorption, using non-living biomass (mostly suspended), is briefly reviewed in this paper as applied to toxic metal ions removal, with particular focus on the kinetics and engineering considerations of the process. Several diverse kinetic models were successful in fitting the experimental data.
K.A. Matis, A.I. Zouboulis, N.K. Lazaridis, Th.D. Karapantsios   +3 more
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The interaction of piroxicam with some metal ions in aqueous solution

Thermochimica Acta, 1989
Abstract The interaction of various metal ions, such as Co(II), Cu(II), La(III), Ce(III), Y(III) and Al(III), with piroxicam in aqueous solution has been studied by spectroscopic methods. The interaction of the metal ions with HMBDC (4-hydroxy-2-methyl-1,2λ-benzothiazine-1,1-dioxide-3-methyl-carboxylate) has also been studied for comparison.
Sock Sung Yun, Hyoung Nae Choi, Jun Gill Kang, Minjoong Yoon, Sung Nak Choi   +4 more
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REACTIONS OF IONS IN AQUEOUS SOLUTION WITH GLASS AND METAL SURFACES

Journal of the American Chemical Society, 1948
J W, HENSLEY, A O, LONG, J E, WILLARD
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Association of nitrate ion with metal cations in aqueous solution

2010
Ion association in aqueous solutions of varied concentrations of LiNO3, NaNO3, Ca(NO3)2, Sr(NO3)2, Ba(NO3)2, Mn(NO3)2, Co(NO3)2, Ni(NO3)2, Cu(NO3)2, Zn(NO3)2 and Cd(NO3)2 was studied by means of UV spectrometry. The formation and the number of spectrally active species in the investigated electrolyte systems were detected by principal component ...
Gvozdić, Vlatka, Tomišić, Vladislav, Butorac, Vjekoslav, Simeon, Vladimir   +3 more
openaire   +1 more source