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Wyszukujesz frazę "copper chloride" wg kryterium: Temat

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Synthesis and characterization of copper(II) complex of 3-methyl-2,6-diphenylpiperidin-4-one oxime
    Autorzy:
    Thirunarayanan, G.
    Lakshmanan, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1076144.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Complexation
    Copper chloride
    Piperidine-4-one
    Piperidine-4-oneoxime
    UV and IR spectra
    Opis:
    A novel six membered heterocyclic oxime namely 3-methyl-2,6-diphenylpiperidin-4-oneoxime was prepared from the condensation of 3-methyl-2,6-diphenylpiperidin-4-one and hydroxylamine hydrochloride. The obtained oxime was characterized by their physical, analytical and spectroscopic data. This oxime was utilized as ligand for preparation of the copper complex. The oxime belongs to bidentate ligand nature. The copper complex of this oxime was prepared by the conventional heating of ethanolic solution of this oxime and copper chloride pentahydrate. The obtained copper complex was analyzed by their physical constants, analytical, pH measurements, UV and IR spectral data. These physicochemical analysis results confirmed, the structure of the complex was octahedral.
    Źródło:
    World Scientific News; 2019, 116; 102-114
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Induction of Micronuclei in Mice Bone Marrow Cells by Cobalt and Copper Chlorides
    Autorzy:
    Goc Rasgele, P.
    Kekecoglu, M.
    Gokalp Muranli, F. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/204945.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    chlorek kobaltu
    chlorek miedzi
    metale ciężkie
    test mikrojąderkowy
    mysz
    cobalt chloride
    copper chloride
    heavy metal
    mice
    micronucleus assay
    Opis:
    The aim of our research was to investigate the genotoxic effects of cobalt chloride and copper chloride in mouse bone marrow cells using the micronucleus (MN) assay. The three different concentrations of cobalt chloride (11.2, 22.5 and 45 mg kg-1) and copper chloride (1.17, 2.35 and 4.70 mg kg-1) were injected intraperitoneally to mice for 24 and 48 hours. It was observed that both of these heavy metals induced a signifi cant increase in frequency of micronucleated polychromatic erythrocytes (MNPCE) at different concentrations in mice for 24 and 48 hours when compared with the control. Furthermore, the signifi cant reduction for the polychromatic erythrocyte/normochromatic erythrocyte (PCE/NCE) ratio which is indicative of bone marrow cytotoxicity was observed in bone marrow cells which were treated with copper chloride at all concentrations for 24 and 48 hours. No reduction of the PCE/NCE ratio was observed both 24 and 48 hours after all the doses of cobalt chloride tested as compared to the negative control. These results lead us to the conclusion that copper chloride may have genotoxic and cytotoxic properties due to induction in the frequency of MN and a reduction in PCE/NCE ratio in bone marrow cells of mice, whereas cobalt chloride induced only genotoxic effect in mice bone marrow.
    Źródło:
    Archives of Environmental Protection; 2013, 39, 1; 75-82
    2083-4772
    2083-4810
    Pojawia się w:
    Archives of Environmental Protection
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Chloride leaching of silver and lead from a solid residue after atmospheric leaching of flotation copper concentrates
    Autorzy:
    Chmielewski, T.
    Gibas, K.
    Borowski, K.
    Adamski, Z.
    Wozniak, B.
    Muszer, A,
    Powiązania:
    https://bibliotekanauki.pl/articles/109629.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    copper concentrate
    atmospheric leaching
    chloride leaching
    silver
    lead
    Opis:
    Recovery of silver and lead by means of chloride leaching of solid residue after atmospheric leaching of the copper concentrate from Lubin Concentrator (KGHM) was investigated. The effect of leaching temperature, chloride concentration, Fe(III) and oxygen presence, solid-to-liquid ratio and feed preleaching with NaOH on the silver and lead recovery was analyzed. Chloride leaching appeared to be very effective for recovery of lead, whereas satisfactory recovery of silver was observed after chemical pretreatment of the leaching feed with alkali solution of NaOH in order to liberate Ag entrapped in the jarosite structure. It was found that to achieve the satisfactory recovery of Ag and Pb leaching had to be performed in acidified 4 M chloride concentration at temperature of 90 oC. The presence of oxidants, that is O2 and iron(III) ions, was beneficial in the initial stage of the process. The maximum recovery of Ag and Pb was found for the solid-to-liquid ratio of 1:10 after 10 hours leaching.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2017, 53, 2; 893-907
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new cyclotriveratrylene derivative as turn-off fluorescent probe with quinoline appended arm for the selective and sensitive determination of Cu2+ ions
    Autorzy:
    Fernandes, Patrick F.
    Mishra, Divya R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030477.pdf
    Data publikacji:
    2020
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    8-quniolinesulfonyl chloride
    Fluorescence studies
    Sensors
    copper ions
    cyclotriveratrylene
    Opis:
    A novel supramolecular fluorescent molecular probe constructed on cyclotriveratrylene based derivative allied to 8-quinolinesulfonyl chloride (8QSC) was synthesized and used for the detection of copper ions among the various cations. Using 1H-NMR, 13C-NMR, and ESI-MS techniques the compound was successfully characterised. Furthermore the complexation behaviour of 8QSC-CTV with different cations were studied. A shift in the absorption spectra showed the detection of copper ion with the ligand 8QSC-CTV which concludes the strong binding interaction between the ligand and the cation. Furthermore the metal ion showed quenching in the emission spectra. The quantum yield of the metal complex was also studied. The stern volmer analysis concluded that the mechanism of fluorescence quenching is either purely dynamic or purely static.
    Źródło:
    World Scientific News; 2020, 144; 103-113
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Solvent extraction of copper(II) from chloride solutions using 1,1′-dialkyl-2,2′ bibenzimidazoles as extractants
    Autorzy:
    Mądrzak-Litwa, Iwona
    Borowiak-Resterna, Aleksandra
    Powiązania:
    https://bibliotekanauki.pl/articles/110851.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    copper
    solvent extraction
    metal removal
    chloride solution
    2,2′-bibenzimidazole
    Opis:
    The solvent extraction ability of 1,1′-dialkyl-2,2′-bibenzimidazoles (L) for the recovery of copper(II) ions from aqueous chloride solutions has been investigated. It was found that 1,1′-didecyl- 2,2′-bibenzimidazole is a useful extractant for the separation of copper(II) ions from both weakly and strongly acidic solutions. Copper(II) can be effectively stripped of organic solutions by a water or ammonia solution in a one-stage process. In low acidity media (pH feed > 1), the extraction percentage of Cu(II) increases with an increase in metal ions and chloride concentrations. Copper(II) ions are extracted as binuclear complexes (CuCl2) 2L2 (L = extractant). The constructed McCabe−Thiele diagram shows that the reduction of copper(II) ions concentration from 25 to approximately 5 g/dm3 in an aqueous feed is possible in two extraction stages. When [HCl] feed ≥ 1 M, (LH+)2(CuCl 4 2)L complex is formed. From the strongly acidic solutions ([HCl] = [LiCl] = 4 M), almost 100% of copper(II) ions can be removed by 1,1′-didecyl-2,2′-bibenzimidazole. Benzyl alcohol, used as an organic phase modifier, enables the selective extraction of copper(II) over zinc(II) ions from a weakly acidic chloride solution.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2019, 55, 5; 1165-1178
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Halit w poziomie eksploatacyjnym złóż rud miedzi na monoklinie przedsudeckiej – przykład współczesnej mineralizacji chlorkowej
    Halite in mine drifts in copper ore deposits over the Fore-Sudetic Homocline: an example of modern chloride mineralization
    Autorzy:
    Świerk, Mateusz
    Burliga, Stanisław
    Powiązania:
    https://bibliotekanauki.pl/articles/2191997.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Stowarzyszenie Górnictwa Solnego
    Tematy:
    halit
    minerał chlorkowy
    złoże rud miedzi
    monoklina przedsudecka
    halite
    chloride mineral
    copper ore
    Fore Sudetic Homocline
    Źródło:
    Przegląd Solny; 2022, 16; 168--170
    2300-9349
    Pojawia się w:
    Przegląd Solny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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