Results 31 to 40 of about 6,284,359 (297)

Kinetics and Equilibrium Studies on the Sorption of Manganese(II) and Nickel(II) onto Kaolinite and Bentonite

open access: yesE-Journal of Chemistry, 2011
The sorption of manganese(II) and nickel(II) onto two adsorbents, kaolinite and bentonite from aqueous solution was studied in batch mode. Effect of pH, contact time, adsorbent dose, and initial metal ion concentration on adsorption was investigated ...
B. Sathyanarayana, K. Seshaiah
doaj   +1 more source

Adsorption of Nickel Ions From Aqueaus Solution Using Natural Clay

open access: yesمجلة النهرين للعلوم الهندسية, 2018
The adsorption characteristics of Nickel (II) onto Iraqi Bentonite clay from aqueous solution have been investigated with respect to changes in pH of solution, adsorbent dosage, contact time and temperature of the solution. The maximum removal efficiency
Mohammed Jaafar Ali Al-atabe   +1 more
doaj   +1 more source

Hydrothermal synthesis of copper (II) and Nickel (II) nano complexes with unsymmetric tetradentate Schiff base ligand. New precursors for preparation of copper (II) and nickel (II) oxides nano-particles [PDF]

open access: yesNanochemistry Research, 2018
Two new nano particles of copper (II) and nickel (II) complexes, [Cu(cd5Clsalen)] (1) and [Ni(cd5Clsalen)] (2) with unsymmetrical tetradentate Schiff base ligand cd5Clsalen={methyl-2-[N-[2-(2-hydroxy-5-choloro-2phenyl) methylidynetrilo]ethyl}amino-1 ...
Mohammad Jaafar Soltanianfard   +3 more
doaj   +1 more source

Electrochemical oxidation of binary copper-nickel alloys in cryolite melts [PDF]

open access: yes, 2007
Anodic oxidation of copper, nickel and two copper-nickel alloys was studied in cryolite melts at 1000°C. In an oxide-free melt, anodic dissolution of each material was observed, and the dissolution potential increases with the content of copper.
Palau, Patrice   +5 more
core   +1 more source

Efficiency Study of Nickel (II) and Cadmium (II) Biosorption by Powder of Waste Activated Sludge from Aqueous Solutions [PDF]

open access: yesسلامت و محیط, 2011
"n "n "nBackground and Objective: Nickel (II) and cadmium (II) are important in environmental pollutant. Biosorption of heavy metals can be an effective process for the removal and recovery of heavy metal ions from aqueous solutions because of the ...
A.A Ebrahimi, R Fouladi fard
doaj  

Syntheses and Spectroscopic Characterization on New [O–3-phenyl-1-propyl-(4-methoxyphenyl)dithiophosphonato] Ni(II), Cd(II) and Hg(II) Complexes

open access: yesJournal of the Turkish Chemical Society, Section A: Chemistry, 2018
In this study, four new dithiophosphonic acid complexes, namely, trans-bis-[O–3-phenyl-1-propyl-(4-methoxyphenyl) dithiophosphonato] nickel (II), {Bis-pyridine-bis-(O–3–phenylpropyl (4-methoxyphenyl) dithiophosphonato]} nickel (II), bis-{bis-( O–3-phenyl-
Ertuğrul Gazi Sağlam, Ahmet EBİNÇ
doaj   +1 more source

Colorimetric Estimation of Ni(II) Ions in Aqueous Solution

open access: yesE-Journal of Chemistry, 2009
A rapid and accurate colorimetric method has been proposed for the estimation of nickel(II) in aqueous solution. It is found that nickel(II) ions have maximum absorbance at 393 nm in distilled water and in aqueous sucrose solution (0.3 mol dm-3). In both
S. Mathpal, N. D. Kandpal
doaj   +1 more source

Nickel (II) monothiocarbamates [PDF]

open access: yesInorganic and Nuclear Chemistry Letters, 1972
Contains fulltext : 143080.pdf (Publisher’s version ) (Open Access)
openaire   +2 more sources

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

The role of miR‐335‐5p in the redifferentiation of BRAF p.V600E thyroid cancers

open access: yesMolecular Oncology, EarlyView.
The BRAF p.V600E mutation promotes thyroid cancer dedifferentiation and radioiodine resistance. Using a network approach, we identified miR‐335‐5p as a key regulator of BRAF‐mutated thyroid tumors. Restoring miR‐335‐5p increased thyroid‐specific gene expression and iodine uptake in cells and organoids.
Valeria Pecce   +11 more
wiley   +1 more source

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