Log in

Relevant bibliographies by topics / Stock; solution of copper(II) / Journal articles

To see the other types of publications on this topic, follow the link: Stock; solution of copper(II).

Journal articles on the topic 'Stock; solution of copper(II)'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Stock; solution of copper(II).'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

A., SARKAR, K. THOKDAR T., K. PARIA P., and K. MAJUMDAR S. "Extraction and Spectrophotometric Determination of Copper with 4-Nitrosoresorcinol in Presence of Pyridine and Substituted Pyridines." Journal of Indian Chemical Society Vol. 65, Oct 1988 (1988): 742–43. https://doi.org/10.5281/zenodo.6106739.

Full text

Abstract:

Department of Chemistry, North Bengal University, Darjeeling-734 430 <em>Manuscript received 11 June 1987, revised 22 February 1988, accepted 18 July 1988</em> Extraction and Spectrophotometric Determination of Copper with 4-Nitrosoresorcinol in Presence of Pyridine and Substituted Pyridines.

APA, Harvard, Vancouver, ISO, and other styles

2

Guevara Amatón, Karla Victoria, Pedro Couceiro, Hesner Coto Fuentes, et al. "Microanalyser Prototype for On-Line Monitoring of Copper(II) Ion in Mining Industrial Processes." Sensors 19, no. 15 (2019): 3382. http://dx.doi.org/10.3390/s19153382.

Full text

Abstract:

A microanalyzer prototype for copper(II) ion monitoring in mining industrial processes is presented. The microanalyzer is designed as an assembly of different modules, each module being responsible for a unit operation. In order to optimize the industrial processes, the microanalyzer can automate all sample management, signal processing, and mathematical calculations and wirelessly transfer data to a control room. The determination of copper(II) ion is done using a colorimetric reaction and the microanalyser performs autocalibration by in situ dilution of a stock solution, matching the higher

APA, Harvard, Vancouver, ISO, and other styles

3

RAM, N. PATEL, and B. PANDEYA KRISHNA. "X-Band Electron Paramagnetic Resonance Spectra of Amino Acid-Copper(II) and Amino Acid-Copper(II)-lmidazole Systems." Journal of Indian Chemical Society Vol. 75, Jan 1998 (1998): 1–3. https://doi.org/10.5281/zenodo.5912970.

Full text

Abstract:

Department of Chemistry, A. P. S. University, Rewa- 486 003 <em>Manuscript received 19 March 1996, revised 20 September 1996, accepted 10 January 1997</em> The binary complexes with amino acids and ternary complexes with amino acids and imidazole of Cu<sup>II</sup> have been studied through epr spectral studies at different pH values. The complexes show superhyperline lines on the \(g_\bot\) features in accordance to the number of nitrogens coordinated to copper.

APA, Harvard, Vancouver, ISO, and other styles

4

V., Krishna Reddy, Thippaiah J, Kesava Rao C., Raveendra Reddy P., and Sreenivasulu Reddy T. "2,4-Dihydroxybenzophenone benzoic hydrazone for spectrophotometric determination of copper(II) and iron(III) in soil and cement." Journal of Indian Chemical Society Vol. 76, May 1999 (1999): 275–76. https://doi.org/10.5281/zenodo.5851958.

Full text

Abstract:

Department of Chemistry, Sri Krishnadevaraya University, Anantapur-515 003, India <em>Manuscript received 23 May 1997, revised 28 December 1998, accepted 4 February 1999</em> 2,4-Dihydroxybenzophenone benzoic hydrazone (<strong>DHBPBH)</strong> is employed as an analytical reagent for the spectrophotometric determination of copper and iron. The reagent forms 1 : 1 greenish yellow coloured complex with copper(II) at pH 4.0 and λ<sub>max</sub> 380 nm (E 1.55 x 10<sup>4</sup> dm<sup>3</sup> mol<sup>-1</sup> cm<sup>-1</sup>); Sandell's sensitivity 0.004 µg cm<sup>-2</sup>, and Bee

APA, Harvard, Vancouver, ISO, and other styles

5

M., Sivasankaran Nair, Kalalakshmi G., and Sankaranarayana Pillai M. "Mixed ligand complex formation of copper(II) with 2,5-diaminovaleric acid and some amino acids." Journal of Indian Chemical Society Vol. 76, Jun 1999 (1999): 310–11. https://doi.org/10.5281/zenodo.5852299.

Full text

Abstract:

Department of Chemistry, Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli-627 012, India Department of Chemistry, S. T. Hindu College, Nagercoil-629 002, India <em>Manuscript received 18 August 1998, revised 20 January 1999, accepted 16 February 1999</em> The stability and structure of the mixed ligand complexes formed by <strong>Cu<sup>ll</sup> </strong>with DL-2,5-diaminovaleric acid (dava) as ligand (<strong>A</strong>) and DL-2-aminobutanoic acid (2aba), DL-3-aminobutanoic acid (3aba), DL-4-aminobutanoic acid (4aba) and DL-4-amino-3- hydroxybutanoic acid (abba) as ligands (<st

APA, Harvard, Vancouver, ISO, and other styles

6

Takahashi, Kohtaro, Naoya Yamada, Daichi Kumagai, et al. "Effect of alkyl substituents: 5,15-bis(trimethylsilylethynyl)- vs. 5,15-bis(triisopropylsilylethynyl)-tetrabenzoporphyrins and their metal complexes." Journal of Porphyrins and Phthalocyanines 19, no. 01-03 (2015): 465–78. http://dx.doi.org/10.1142/s1088424615500388.

Full text

Abstract:

The copper(II), nickel(II), etc. complexes of 5,15-bis(trimethylsilylethynyl)tetrabenzoporphyrin ( TMS - H 2 BP ) and 5,15-bis(triisopropylsilylethynyl)tetrabenzoporphyrin ( TIPS - H 2 BP ) have been prepared from the corresponding bicycle[2.2.2]octadiene(BCOD)-fused precursors by the retro-Diels–Alder reaction. X-ray diffraction (XRD) analyses show that TMS - H 2 BP and its metal complexes of zinc(II) ( TMS - ZnBP ) and copper(II) ( TMS - CuBP ) adopt flat molecular conformations and form herringbone-type packing structures in the single crystalline state. TIPS - H 2 BP and the zinc(II) and c

APA, Harvard, Vancouver, ISO, and other styles

7

Šimunková, Miriama, Zuzana Barbieriková, Milan Mazúr, et al. "Interaction of Redox-Active Copper(II) with Catecholamines: A Combined Spectroscopic and Theoretical Study." Inorganics 11, no. 5 (2023): 208. http://dx.doi.org/10.3390/inorganics11050208.

Full text

Abstract:

In this work, attention is focused on the non-essential amino acid L-Tyrosine (TYR) hydroxylated to L-DOPA, which is the precursor to the neurotransmitters dopamine, noradrenaline (norepinephrine; NE) and adrenaline (epinephrine; EP) known as catecholamines and their interactions with redox-active Cu(II). Catecholamines have multiple functions in biological systems, including the regulation of the central nervous system, and free (unbound) redox metal ions are present in many diseases with disturbed metal homeostasis. The interaction between catecholamines and Cu(II) has been studied by means

APA, Harvard, Vancouver, ISO, and other styles

8

Aroua, Lotfi M., Reham Ali, Abuzar E. A. E. Albadri, Sabri Messaoudi, Fahad M. Alminderej, and Sayed M. Saleh. "A New, Extremely Sensitive, Turn-Off Optical Sensor Utilizing Schiff Base for Fast Detection of Cu(II)." Biosensors 13, no. 3 (2023): 359. http://dx.doi.org/10.3390/bios13030359.

Full text

Abstract:

Throughout this research, a unique optical sensor for detecting one of the most dangerous heavy metal ions, Cu(II), was designed and developed. The (4-mercaptophenyl) iminomethylphenyl naphthalenyl carbamate (MNC) sensor probe was effectively prepared. The Schiff base of the sensor shows a “turn-off” state with excellent sensitivity to Cu(II) ions. This innovative fluorescent chemosensor possesses distinctive optical features with a substantial Stocks shift (about 114 nm). In addition, MNC has remarkable selectivity for Cu(II) relative to other cations. Density functional theory (DFT) and the

APA, Harvard, Vancouver, ISO, and other styles

9

Kozlova, Marina M., Artem E. Bobylev, Larisa N. Maskaeva, Vyacheslav F. Markov, and Maxim I. Smolnikov. "Catalytic oxidation of cation exchanger KU-2×8 with an aqueous solution of hydrogen peroxide." Butlerov Communications 58, no. 5 (2019): 54–61. http://dx.doi.org/10.37952/roi-jbc-01/19-58-5-54.

Full text

Abstract:

During the operation of nuclear power plants, spent ion-exchange resins are formed, which are heterogeneous radioactive low-level waste in the form of particles from a cross-linked organic polymer. Such resins may not always be regenerated. Therefore, the disposal of spent ion exchange resins is currently one of the primary problems at nuclear power plants. Conventional technologies for the processing of waste resins are relatively expensive. In addition, there are difficulties with transportation and storage of waste, and the disposal of spent ion exchange resins is a complex process. In the

APA, Harvard, Vancouver, ISO, and other styles

10

Gómez-Coca, Raquel B., Larisa E. Kapinos, Antonín Holý, Rosario A. Vilaplana, Francisco González-Vílchez, and Helmut Sigel. "Ternary Copper(II) Complexes in Solution[1,2] Formed With 8-Aza Derivatives of the Antiviral Nucleotide Analogue 9-[2-(Phosphonomethoxy)Ethyl]Adenine (PMEA)." Metal-Based Drugs 7, no. 6 (2000): 313–24. http://dx.doi.org/10.1155/mbd.2000.313.

Full text

Abstract:

The stability constants of the mixed-ligand complexes formed between Cu(Arm)2+, where Arm= 2,2'-bipyridine (Bpy) or 1,10-phenanthroline (Phen), and the dianions of 9-[2-(phosphonomethoxy)ethyl]-8-azaadenine (9,8aPMEA) and 8-[2-(phosphonomethoxy)ethyl]-8-azaadenine (8,8aPMEA) (both also abbreviated as PA2-) were determined by potentiometric pH titrations in aqueous solution (25 °C; I = 0.1 M, NaNO3). All four ternary Cu(Arm)(PA) complexes are considerably more stable than corresponding Cu(Arm)(R-PO3) species, where R-PO32− represents a phosph(on)ate ligand with a group R that is unable to parti

APA, Harvard, Vancouver, ISO, and other styles

11

Kumar, Subodh, R. N. Patel, P. V. Khadikar, and K. B. PAndeya. "Synthetic, spectral and solution studies on imidazolate-bridged copper(II)-copper(II) and copper(II)-zinc(II) complexes." Journal of Chemical Sciences 113, no. 1 (2001): 21–27. http://dx.doi.org/10.1007/bf02708548.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Kononova, Olga, Marina Kuznetsova, Alexey Mel’nikov, Nataliya Karplyakova, and Yury Kononov. "Sorption recovery of copper (II) and zinc (II) from chloride aqueous solutions." Journal of the Serbian Chemical Society 79, no. 8 (2014): 1037–49. http://dx.doi.org/10.2298/jsc130911033k.

Full text

Abstract:

The present investigation is devoted to simultaneous sorption recovery of copper (II) and zinc (II) ions on some commercial anion exchangers with different physical-chemical properties. The initial concentrations of zinc and copper were 1-3 mmol L-1 and the recovery was carried out in 0.01 M and 2 M hydrochloric acid solutions. It was shown that the investigated anion exchangers possess good sorption and kinetic properties. After the recovery of copper and zinc from strong acidic solutions, their selective elution was carried out by means of 2 M hydrochloric acid solution (zinc recovery) and 2

APA, Harvard, Vancouver, ISO, and other styles

13

Ram, N. Patel, P. Patel Ayodhya, and B. Pandeya Krishna. "Synthesis, magnetic and spectral properties of binuclear imidazolate bridged copper(II)-copper(II) and copper(II)-zinc(II) complexes." Journal of Indian Chemical Society Vol. 78, Jan 2001 (2001): 6–8. https://doi.org/10.5281/zenodo.5846016.

Full text

Abstract:

Department of Chemistry, A P. S. University, Rewa-486 003, India <em>Manuscript received 1 November 1999, revised 17 April 2000. accepted 26 August 2000</em> Two new binuclear imidazolate bridged complexes, [(PAN)Cu(im)Cu(PAN)] (ClO<sub>4</sub>)<sub>2</sub> and [(PAN)Cu(im)Zn(PAN)](ClO<sub>4</sub>)<sub>2</sub> (PAN =1. (2-pyridylazo)-2-naphthol, im = imidazolate) have been prepared. Room temperature magnetic susceptibility of [(PAN)Cu(im)Cu(PAN)] (ClO<sub>4</sub>)<sub>2</sub> (reveals the presence of intramolecular antiferromagnetic interactions through the imidazolate bridge. X

APA, Harvard, Vancouver, ISO, and other styles

14

Comba, P., and P. Hilfenhaus. "Solution structures of dinuclear copper(II) complexes." Journal of Inorganic Biochemistry 59, no. 2-3 (1995): 692. http://dx.doi.org/10.1016/0162-0134(95)97780-t.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Feng, Tao, Jie Wang, Fan Zhang, and Xiaowen Shi. "Removal of copper(II) from an aqueous solution with copper(II)-imprinted chitosan microspheres." Journal of Applied Polymer Science 128, no. 6 (2012): 3631–38. http://dx.doi.org/10.1002/app.38406.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Zollfrank, Cordt, Manfred Stoll, and Gerd Wegener. "Cellulose-II single crystals from dilute copper-(II) ethylenediamine solution." Macromolecular Chemistry and Physics 200, no. 8 (1999): 1908–11. http://dx.doi.org/10.1002/(sici)1521-3935(19990801)200:8<1908::aid-macp1908>3.0.co;2-q.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Xing, Wei, Man Lee, and Seung Choi. "Separation of Ag(I) by Ion Exchange and Cementation from a Raffinate Containing Ag(I), Ni(II) and Zn(II) and Traces of Cu(II) and Sn(II)." Processes 6, no. 8 (2018): 112. http://dx.doi.org/10.3390/pr6080112.

Full text

Abstract:

Ion exchange and cementation experiments were done to separate silver(I) from a raffinate containing silver(I), nickel(II), and zinc(II) and small amounts of copper(II) and tin(II). The raffinate resulted from the recovery of gold(III), tin(II) and copper(II) by solvent extraction from a leaching solution of anode slime. Ion exchange with anionic resins was not effective in separating silver(I) because tin(II) and zinc(II) were selectively adsorbed into the anionic resins. It was possible to separate silver(I) by cementation with copper sheet. Treatment of the cemented silver with nitric acid

APA, Harvard, Vancouver, ISO, and other styles

18

Billetter, Heinrich, Ingo Pantenburg, and Uwe Ruschewitz. "Copper(II) chlorofumarate trihydrate." Acta Crystallographica Section E Structure Reports Online 62, no. 4 (2006): m881—m883. http://dx.doi.org/10.1107/s1600536806010750.

Full text

Abstract:

Blue crystals of the title compound, poly[[[diaquacopper(II)]-μ3-chlorofumarato] monohydrate], {[Cu(OOC–CH=CCl–COO)(H2O)2]·H2O} n , crystallized unexpectedly from an aqueous solution containing acetylenedicarboxylic acid and CuCl2. Each copper cation is coordinated by five O atoms – three from three fumarate anions and two from two water molecules – in the form of a distorted square pyramid. All atoms of the asymmetric unit, except a carboxylate oxygen and the coordinated water molecule, lie on a mirror plane. These units are connected by the bifunctional anions to form ribbons along [001]. Th

APA, Harvard, Vancouver, ISO, and other styles

19

Oliynyk, L. P. "Study of complex formation copper (II) ions with polyacrylic acid." Chemistry, Technology and Application of Substances 6, no. 1 (2023): 1–7. http://dx.doi.org/10.23939/ctas2023.01.001.

Full text

Abstract:

The process of interaction of copper ions with polyacrylic acid is investigated in this paper.It is shown that complexes are formed by the interaction of polyacrylic acid with copper ions (II) in a wide range of pH.At pH <4 the precipitate of complexes falls, the pH of the solution increases, water-soluble copper complexes (II) with polyacrylic acid are formed.The solubility of such complexes depends on the number of ionized carboxyl groups of the macromolecule.At low concentrations of copper ions (II) in the mixture, complexes associated with two carboxyl groups of polyacids are formed.At

APA, Harvard, Vancouver, ISO, and other styles

20

Boyarskih, Ekaterina P., Ludmila A. Brusnitsina, Elena I. Stepanovskih, and Tatiana A. Alekseeva. "Optimization of copper ammonium etching composition solutions in the production of printed circuit boards." Butlerov Communications 61, no. 3 (2020): 36–42. http://dx.doi.org/10.37952/roi-jbc-01/20-61-3-36.

Full text

Abstract:

Etching in the production of printed circuit boards is the process of chemical destruction of metal (mainly copper) as a result of the action of liquid or gaseous etchers on the areas of the surface of the workpiece unprotected by a protective mask (etching resist). Copper foil etching is used to form a conductive pattern of PCB by removing copper from unprotected etching resist areas. This is one of the main operations of manufacturing the PCB, since a pattern of printed elements is formed on it. During the etching process, unprotected copper from the printed circuit board by means of an oxid

APA, Harvard, Vancouver, ISO, and other styles

21

Samadov, A. S., I. G. Gorichev, G. Z. Kaziev, E. F. Faizullozoda, and A. F. Stepnova. "Copper(II) Complexation with Thiosemicarbazide in Aqueous Solution." Russian Journal of Physical Chemistry A 95, no. 9 (2021): 1841–45. http://dx.doi.org/10.1134/s0036024421090223.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Oliynyk, L. P., О. І. Makota, ,. Z. M. Komarenska, and S. I. Gerasimchuk. "RESEARCH OF COMPLEX FORMATION OF POLYETHYLENIMINE WITH COPPER (II), NICKEL (II), COBALT (II) IONS." Chemistry, Technology and Application of Substances 5, no. 2 (2022): 16–23. http://dx.doi.org/10.23939/ctas2022.02.016.

Full text

Abstract:

There is described the influence of polyethylenimine globule structure on complexation with copper (II), nickel (II) and cobalt (II) ions. There are determined the values of the coordination number with the change of the pH of the solution for the complexes of ethylenediamine, diethylenetriamine and polyethylenimine with metal ions. It is investigated that the complexation of these metal ions with low molecular weight amines passes through three stages and with PEI through two stages. It is shown that the content of free nitrogen atoms in PEI, which do not react with metal ions, increases with

APA, Harvard, Vancouver, ISO, and other styles

23

Radzyminska-Lenarcik, Elzbieta, Kamila Maslowska, and Wlodzimierz Urbaniak. "Removal of Copper (II), Zinc (II), Cobalt (II), and Nickel (II) Ions by PIMs Doped 2-Alkylimidazoles." Membranes 12, no. 1 (2021): 16. http://dx.doi.org/10.3390/membranes12010016.

Full text

Abstract:

Polymer inclusion membranes (PIMs) are an attractive approach to the separation of metals from an aqueous solution. This study is concerned with the use of 2-alkylimidazoles (alkyl = methyl, ethyl, propyl, butyl) as ion carriers in PIMs. It investigates the separation of copper (II), zinc (II), cobalt (II), and nickel (II) from aqueous solutions with the use of polymer inclusion membranes. PIMs are formed by casting a solution containing a carrier (extractant), a plasticizer (o-NPPE), and a base polymer such as cellulose triacetate (CTA) to form a thin, flexible, and stable film. The topics di

APA, Harvard, Vancouver, ISO, and other styles

24

Spiegler, C., B. Spiess, G. J. Goetz-Grandmont, and D. C. Povey. "Copper(II) and zinc(II) complexes of betaxolol in methanolic solution." Inorganica Chimica Acta 196, no. 2 (1992): 171–75. http://dx.doi.org/10.1016/s0020-1693(00)86120-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Sharrock, Patrick, and Milan Melník. "Copper(II) acetates: from dimer to monomer." Canadian Journal of Chemistry 63, no. 1 (1985): 52–56. http://dx.doi.org/10.1139/v85-009.

Full text

Abstract:

The epr spectra at various frequencies of copper(II) acetate anhydrous, monohydrate, monoacetic acid, and water – acetic acid adduct are presented and analysed. The presence of copper hyperfine splittings in the solid state epr spectra of this series of compounds is discussed. The frozen solution spectrum of copper(II) acetate in acetic acid solution containing ~2% water shows an exceptional resolution of [Formula: see text] hyperfine of 24 G. This is attributed to a key intermediate which explains the monomer–dimer dissociation mechanism. The influence of distortions on the structures of thes

APA, Harvard, Vancouver, ISO, and other styles

26

Al-Shukry, Abbas H., Zain E. Mansor, and Nada A. Abd Al Hussein Al -Hussein. "Simultaneous Determination of Iron and Copper in Aqueous Solution Using Spectrophotometry." Journal Port Science Research 7, no. 1 (2024): 15–21. http://dx.doi.org/10.36371/port.2024.1.3.

Full text

Abstract:

Iron and copper mixtures were quantitatively determined in aqueous solutions for the first time using the analytical method in this approach with the aid of T60U Spectrophotometer. The method is so simple, fast, economic, and can be carried out easily on a bench. The absorbencies for iron, copper and iron-copper mixtures in aqueous solution were measured using T60U adopted with UVWin6 software UV -VIS Spectrometer (pg instruments United Kingdom) by filling two 5 ml quartz cells of dimensions 1*1*5 cm, the first is filled with the blank solution which is a solution containing all the constituen

APA, Harvard, Vancouver, ISO, and other styles

27

Madiabu, Mohammad Jihad, Joko Untung, Imas Solihat, and Andi Muhammad Ichzan. "Equilibrium and Kinetic Study of Removal Copper(II) from Aqueous Solution Using Chicken Eggshells: Low Cost Sorbent." Molekul 16, no. 1 (2021): 28. http://dx.doi.org/10.20884/1.jm.2021.16.1.658.

Full text

Abstract:

The research aims to investigate feasibility eggshells as potential adsorbent to remove copper(II) ions from aqueous solution. Eggshells powder was characterized using X-ray diffraction, scanning electron microscopy, and Fourier transform infrared spectroscopy. Effect of copper(II) initial concentration, adsorbent dosage, and contact time have conducted. The optimum adsorption condition obtained when 0.7 g eggshells applied to 50 mg/L copper(II) solution for 50 minutes. The maximum percentage of copper(II) removal was exceeded more than 85%. Langmuir and Freundlich isotherm model were applied

APA, Harvard, Vancouver, ISO, and other styles

28

Pastukhova, Nadezhda N., Marina A. Shumilova, Feodor F. Chausov, Irina S. Kazantseva, Dmitriy K. Zhirov, and Igor K. Averkiev. "Physico-chemical patterns of precipitation of copper hydroxo compounds from waste acidic copper plating electrolytes." Himičeskaâ fizika i mezoskopiâ 26, no. 4 (2024): 557–66. https://doi.org/10.62669/17270227.2024.4.48.

Full text

Abstract:

Spent electrolytes, generated in large quantities in galvanic production, on the one hand, are classified as hazardous pollutants of hazard classes I and II; on the other hand, they are secondary sources for obtaining many non-ferrous metals. The aim of the present work is to study the physico-chemical patterns of the formation of copper(II) hydroxo compounds during the treatment of a spent acidic copper plating electrolyte with alkaline precipitants to obtain easily separated precipitates that can be easily and completely processed into sought-after products. It is established that during the

APA, Harvard, Vancouver, ISO, and other styles

29

Osvath, P., NF Curtis, and DC Weatherburn. "Copper(II) and Nickel(II) Complexes of Pentaaza Macrocyclic Ligands." Australian Journal of Chemistry 40, no. 2 (1987): 347. http://dx.doi.org/10.1071/ch9870347.

Full text

Abstract:

The preparations of the pentaazamacrocyclic ligands 1,4,7,10,13-pentaazacyclopentadecane, cpad , l,4,7,l0,13-pentaazacyclohexadecane, ched , l,4,7,l0,14-pentaazacycloheptadecane, chad , 1,4,7,11,14-pentaazacycloheptadecane, cnad , 1,4,7,11,15-pentaazacyclooctadecane, cnad , 1,4,8,11,15-pentaazacyclooctadecane, cnad , 1,4,8,12,16-pentaazacyclononadecane, cnad , and 1,5,9,13,17-pentaazacycloeicosane, ceic , as well as the new linear pentaamine N-(3-aminopropy1)- N'-[3-[(3-aminopropyl)amino] propyl ]propane-1,3-diamine, tpah , are described. Copper(II) and nickel(II) complexes of the above ligand

APA, Harvard, Vancouver, ISO, and other styles

30

BIPIN, B. MAHAPATRA, and PANDA DEBENDRA. "Anionic Mixed Ligand Complexes of Cobalt(II) and Copper(II)." Journal of Indian Chemical Society Vol. 63, Sep 1986 (1986): 792–93. https://doi.org/10.5281/zenodo.6298460.

Full text

Abstract:

Department of Chemistry, G. M. College, Sambalpur-768 004 <em>Manuscript received 13 December 1982, revised 6 June 1986, accepted 18 June 1986</em> Anionic mixed ligand complexes of the compositions [ LH<sub>2</sub>[MCI<sub>4</sub>L<em>'</em><sub>2</sub>]. where LH - 2,6-lutidinium cation, L' - pyridine, piperidine for Co<sup><em>II</em></sup> and quinaldine, -\(\gamma\)- and \(\beta\)-picoline for Cu<em><sup>II</sup></em> ; [LH]<sub>2</sub>[MCl<sub>4</sub>L-L], where L-L -1,10-phenanthroline, 2.2'-bipyridyl for Co<em><sup>Il</sup></em> and 1,10-phenanthroline.

APA, Harvard, Vancouver, ISO, and other styles

31

Wakita, Hisanobu, Toshio Yamaguchi, Hirohiko Adachi, Manabu Fujiwara, and Seiichi Yamashita. "A Xanes Study of Square Copper(II) Complexes." Advances in X-ray Analysis 35, B (1991): 1115–20. http://dx.doi.org/10.1154/s0376030800013380.

Full text

Abstract:

AbstractThe XANES (X-ray absorption near edge structure) spectra of copper(II) ions in solid state and in solution of the square-planar copper(II) complexes with tetraaza macrocycles were measured. The peaks in the measured XANES spectra shifted to lower energy side with increasing the electron density of central copper(II) ions. The molecular orbital calculations for the complexes were carried out by the DV-Xα method, and the theoretical XANES spectra were estimated. The clear chemical shift obtained by this XANES study is evaluated and leads to a new concept of π-back donation between the co

APA, Harvard, Vancouver, ISO, and other styles

32

Tobin, Sean, John Cassidy, Kevin Kurian, and Anthony Betts. "Analysis of copper(." Australian Journal of Chemistry 75, no. 10 (2022): 835–38. http://dx.doi.org/10.1071/ch22164.

Full text

Abstract:

In deionised water, ascorbic acid (AH−), through oxidation by oxygen in the presence of copper(ii), was found to degrade with zero-order kinetics. The magnitude of the reaction rate varied directly with the copper(ii) concentration. At a higher pH (7.4), the same reaction was found to be pseudo-first order. Once again, the magnitude of the rate increased linearly with copper(ii) concentration at a micromolar level. Dissolved oxygen levels, in excess AH− and trace copper(ii), displayed similar kinetics under both conditions. Monitoring of either AH− levels or dissolved oxygen concentration was

APA, Harvard, Vancouver, ISO, and other styles

33

Marchiò, Luciano, Nicola Marchetti, Corrado Atzeri, Valentina Borghesani, Maurizio Remelli, and Matteo Tegoni. "The peculiar behavior of Picha in the formation of metallacrown complexes with Cu(ii), Ni(ii) and Zn(ii) in aqueous solution." Dalton Transactions 44, no. 7 (2015): 3237–50. http://dx.doi.org/10.1039/c4dt03264k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Ingle, Pradnya K., Chandrakanth Gadipelly, and Virendra K. Rathod. "Sorption of copper (II) from aqueous solution ontoArachis hypogaeahusk." Desalination and Water Treatment 55, no. 2 (2014): 401–9. http://dx.doi.org/10.1080/19443994.2014.914446.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Labuda, Ján, Mária Van Íčková, Vitaly V. Pavlishchuk, Konstantin B. Yatsimirskii, Mariana I. Mitewa, and Panayot R. Bontchev. "Stereochemistry of Copper(II) Complexes with Hexacyclen in Solution." Journal of Coordination Chemistry 22, no. 2 (1990): 115–20. http://dx.doi.org/10.1080/00958979009410034.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Gündoğan, Recep, Bilal Acemioğlu, and Mehmet Hakkı Alma. "Copper (II) adsorption from aqueous solution by herbaceous peat." Journal of Colloid and Interface Science 269, no. 2 (2004): 303–9. http://dx.doi.org/10.1016/s0021-9797(03)00762-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Bernhardt, Paul V., Peter Comba, Trevor W. Hambley, Salah S. Massoud, and Sandra Stebler. "Determination of solution structures of binuclear copper(II) complexes." Inorganic Chemistry 31, no. 12 (1992): 2644–51. http://dx.doi.org/10.1021/ic00038a061.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Valenzuela, María Luisa, and Carlos Díaz. "Copper (II) Ions into Polyphosphazenes: Solid-Like Solution Behavior." Journal of Inorganic and Organometallic Polymers and Materials 20, no. 2 (2010): 306–12. http://dx.doi.org/10.1007/s10904-010-9338-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Öncel, M. S. "Adsorption of copper(II) from aqueous solution by Beidellite." Environmental Geology 55, no. 8 (2007): 1767–75. http://dx.doi.org/10.1007/s00254-007-1127-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Andrianirinaharivelo, Samoela L., and M. Bolte. "Photochemical behaviour of copper(II) nitrilotriacetate in aqueous solution." Journal of Photochemistry and Photobiology A: Chemistry 73, no. 3 (1993): 213–16. http://dx.doi.org/10.1016/1010-6030(93)90007-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Ho, Y. S., and G. McKay. "Sorption of Copper(II) from Aqueous Solution by Peat." Water, Air, & Soil Pollution 158, no. 1 (2004): 77–97. http://dx.doi.org/10.1023/b:wate.0000044830.63767.a3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Lan, Xiaobing, Jun Chen, Yang Xie, et al. "Investigation on the Removal Performances of Heavy Metal Copper (II) Ions from Aqueous Solutions Using Hydrate-Based Method." Molecules 28, no. 2 (2023): 469. http://dx.doi.org/10.3390/molecules28020469.

Full text

Abstract:

Since heavy metal ion-contaminated water pollutionis becoming a serious threat to human and aquatic lives, new methods for highly efficient removal of heavy metal ions from wastewater are important to tackle environmental problems and sustainable development. In this work, we investigate the removal performances of heavy metal copper (II) ions from aqueous solutions using a gas hydrate-based method. Efficient removal of heavy metal copper (II) ions from wastewater via a methane hydrate process was demonstrated. The influence of the temperature, hydration time, copper (II) ions concentration, a

APA, Harvard, Vancouver, ISO, and other styles

43

Shokooh Saljooghi, Amir, Hadi Amiri Rudbari, Francesco Nicolò, Maliheh Zahmati та Fatemeh Delavar Mendi. "[(Pyridine-2,6-dicarboxylato)copper(II)]-μ-(pyridine-2,6-dicarboxylato)-[bis(ethylenediamine)copper(II)]-μ-(pyridine-2,6-dicarboxylato)-[(pyridine-2,6-dicarboxylato)copper(II)] ethylenediamine monosolvate tetrahydrate". Acta Crystallographica Section E Structure Reports Online 68, № 6 (2012): m830—m831. http://dx.doi.org/10.1107/s1600536812022039.

Full text

Abstract:

The title compound, [Cu3(C7H3NO4)4(C2H8N2)2]·C2H8N2·4H2O, was obtained by the reaction of copper(II) acetate dihydrate with pyridine-2,6-dicarboxylic acid (H2dipic) and ethylenediamine (en) in an aqueous solution. All of the CuII atoms in the trinuclear centrosymmetric title complex are six-coordinated in a distorted octahedral geometry with N2O4 and N4O2 environments for the outer and central CuII atoms, respectively. Various interactions, including numerous O—H...O and C—H...O hydrogen bonds and C—O...π stacking of the pyridine and carboxylate groups [O...centroid distances = 3.669 (2) and 3

APA, Harvard, Vancouver, ISO, and other styles

44

Minnich, M. M., M. B. McBride, and R. L. Chaney. "Copper Activity in Soil Solution: II. Relation to Copper Accumulation in Young Snapbeans." Soil Science Society of America Journal 51, no. 3 (1987): 573–78. http://dx.doi.org/10.2136/sssaj1987.03615995005100030004x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Kahn, M. Arsala, and Yousaf Iqbal Khattak. "Adsorption of copper from copper sulfate solution on carbon black “Spheron 9”—II." Carbon 30, no. 7 (1992): 957–60. http://dx.doi.org/10.1016/0008-6223(92)90121-c.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Essebaai, Hanane, Ilham Ismi, Ahmed Lebkiri, Said Marzak, and El Housseine Rifi. "Kinetic and Thermodynamic Study of Adsorption of Copper (II) Ion on Moroccan Clay." Mediterranean Journal of Chemistry 9, no. 2 (2019): 102–15. http://dx.doi.org/10.13171/mjc92190909510he.

Full text

Abstract:

Highly efficient low-cost adsorbent was applied for copper (II) ions uptake from aqueous solution. Characteristics of natural adsorbent were established using scanning X-ray diffraction (XRD), X-ray fluorescence, electron microscope (SEM) and Fourier Transform Infra-Red (FTIR). Various physicochemical parameters such as contact time, initial copper(II) ions concentration, adsorbent dosage, pH of copper (II) ions solution and temperature were investigated. The result showed that the adsorption of copper (II) ions by natural clay was favorable at pH=5,5. The adsorption was found to increase with

APA, Harvard, Vancouver, ISO, and other styles

47

Milosavljevic, Milutin, Ljiljana Babicev, Svetlana Belosevic, et al. "Innovative environmentally friendly technology for copper(II) hydroxide production." Chemical Industry 72, no. 6 (2018): 363–70. http://dx.doi.org/10.2298/hemind180630023m.

Full text

Abstract:

The innovative laboratory procedure for the synthesis of copper(II) hydroxide in the form of the aqueous suspension was developed. The reaction mechanism consists of the reaction between copper(II) sulphate pentahydrate and sodium carbonate by successive ion exchange of carbonate ions with the hydroxide ones in a multistep process. Production of copper(II) carbonate and sodium sulphate by reacting of copper(II) sulphate with sodium carbonate was followed by addition of sodium hydroxide solution whereby the product, copper(II) hydroxide, was obtained by releasing an equimolar amount of sodium c

APA, Harvard, Vancouver, ISO, and other styles

48

Demyan, V., V. Mikhailenko, and I. Zhukova. "Electrochemical method of obtaining copper (II) oxide powders in alkaline electrolyte." Journal of Physics: Conference Series 2131, no. 4 (2021): 042021. http://dx.doi.org/10.1088/1742-6596/2131/4/042021.

Full text

Abstract:

Abstract Within the framework of these studies, an electrochemical method for the synthesis of highly dispersed powders of copper compounds in aqueous solutions of alkalis is presented. The factors influencing the rate of production of nanoscale copper (II) oxide particles are determined. It is shown that during the anodic oxidation of copper by direct current, the speed of highly dispersed powders formation depends on current density, the nature of alkali cation, and the concentration of electrolyte solution. The mass loss of copper electrodes in NaOH solution is higher than in solutions of p

APA, Harvard, Vancouver, ISO, and other styles

49

Hmood, A. Y., and T. E. Jassim. "Adsorption of copper(II) and lead(II) ions from aqueous solutions by porcellanite." Mesopotamian Journal of Marine Sciences 28, no. 2 (2022): 109–20. http://dx.doi.org/10.58629/mjms.v28i2.144.

Full text

Abstract:

This work is concerned with one of the applications of adsorption behavior from aqueous solution. It deals with the adsorption of copper (II) and lead (II) ions on the surface of porcellanite, which is locally available in Iraq. The purpose of this study is to search for surfaces that are highly applicable for copper (II) and lead (II) ions adsorption to treat the pollution of aqueous solution in nature. The different variables affecting the adsorption capacity of the porcellanite such as contact time, initial metal ion concentration in the feed solution, pH of the medium and temperature, were

APA, Harvard, Vancouver, ISO, and other styles

50

Rajkovic, Milos. "Complexometric determination, Part II: Complexometric determination of Cu2+-ions." Chemical Industry 56, no. 10 (2002): 429–35. http://dx.doi.org/10.2298/hemind0210429r.

Full text

Abstract:

A copper-selective electrode of the coated wire type based on sulphidized copper wire was applied successfully for determining Cu(II) ions by complexometric titration with the disodium salt of EDTA (complexon III). By the formation of internal complex compounds with the Cu(II) ion, the copper concentration in the solution decreases, and all this is followed by a change of potential of the indicator system Cu-DWISE (or Cu-EDWISE)/SCE. At the terminal point of titration, when all the Cu(II) ions are already utilized for the formation of the complex with EDTA, there occurs a steep rise of potenti

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!