XXV.—Complex formation amongst the nitrates. Part I. The ternary system copper nitrate–cobalt nitrate–water

1927 ◽  
Vol 0 (0) ◽  
pp. 150-153 ◽  
Author(s):  
Kathleen Winifred Wilcox ◽  
Charles Reynolds Bailey
Keyword(s):  
Complex Formation ◽  
Ternary System ◽  
Copper Nitrate ◽  
Cobalt Nitrate

Ternary complexes of N-carboxymethylaminoacetohydroxamic acid

1981 ◽  
Vol 46 (5) ◽  
pp. 1107-1115 ◽  
Author(s):  
Rolf Karlíček ◽  
Miroslav Polášek ◽  
Vladimír Jokl
Keyword(s):  
Complex Formation ◽  
Ternary System ◽  
Binuclear Complex ◽  
Functional Group ◽  
Hydroxamic Acids ◽  
Ternary Complexes ◽  
Hydrogen Ions ◽  
Ligand Structure ◽  
Excess Copper

The formation of N-carboxymethylaminoacetohydroxamic acid complexes in solutions with excess copper(II) or iron(III) ions or both of them was studied. In the presence of Cu(II), the binuclear complex Cu2H-1L+ was identified; in the ternary system, the complex CuFeH-1L+ was found. This complex formation is necessarily associated with the ligand structure >N-CH2.CO-NHOH and with a new property of hydroxamic acids of this type - detachment of two hydrogen ions from one carbohydroxamic functional group.

Complex Formation in the Ternary System Tl(III)−CN-−Cl-in Aqueous Solution. A205Tl NMR Study

1996 ◽  
Vol 35 (24) ◽  
pp. 7074-7081 ◽  
Author(s):  
Katja E. Berg ◽  
Johan Blixt ◽  
Julius Glaser
Keyword(s):  
Aqueous Solution ◽  
Complex Formation ◽  
Ternary System ◽  
Nmr Study

scholarly journals Activated Carbon-Spinels Composites for Waste Water Treatment

Metals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1070
Author(s):  
Ernesto de la Torre ◽  
Ana Lozada ◽  
Maricarmen Adatty ◽  
Sebastián Gámez
Keyword(s):  
Activated Carbon ◽  
Active Carbon ◽  
Waste Water Treatment ◽  
Copper Nitrate ◽  
Cobalt Nitrate ◽  
Precipitation Method ◽  
Molar Ratio ◽  
Copper Ferrite ◽  
Cyanide Oxidation ◽  
Two Phases

Nowadays, mining effluents have several contaminants that produce great damage to the environment, cyanide chief among them. Ferrites synthesized from transition metals have oxidative properties that can be used for cyanide oxidation due to their low solubility. In this study, cobalt and copper ferrites were synthesized via the precipitation method, using cobalt nitrate, copper nitrate, and iron nitrate as precursors in a molar ratio of Co or Cu:Fe = 1:2 and NaOH as the precipitating agent. The synthesized ferrites were impregnated in specific areas on active carbon. These composites were characterized using X-Ray Diffraction (XRD) and Scanning Electron Spectroscopy (SEM). The XRD results revealed a cubic spinel structure of ferrites with a single phase of cobalt ferrite and two phases (copper ferrite and copper oxides) for copper. The CoFe2O4 impregnated on active carbon reached a cyanide oxidation of 98% after 8 h of agitation; the composite could be recycled five times with an 18% decrease in the catalytic activity. In cobalt ferrites, a greater dissolution of iron than cobalt was obtained. In the case of copper ferrite, however, the copper dissolution was higher. These results confirm that ferrites and activated carbon composites are a novel alternative for cyanide treatment in mining effluents.

Complex formation in the ternary system Mg(II)-CO2-H2O

1977 ◽  
Vol 41 (9) ◽  
pp. 1193-1200 ◽  
Author(s):  
Walter Riesen ◽  
Heinz Gamsjäger ◽  
Paul W. Schindler
Keyword(s):  
Complex Formation ◽  
Ternary System

scholarly journals On the Action of Metallic (and other) Salts on Carbonate of Lime

1892 ◽  
Vol 18 ◽  
pp. 52-54 ◽  
Author(s):  
Robert Irvine ◽  
W. S. Anderson
Keyword(s):  
Copper Nitrate ◽  
Cobalt Nitrate ◽  
Iron Chloride ◽  
Lead Chloride ◽  
Mercury Chloride ◽  
Chromium Nitrate ◽  
Manganese Sulphate ◽  
Silver Phosphate ◽  
The Past ◽  
Marine Station

It is well known that pseudomorphic changes take place with many minerals. These changes may be either by alteration or displacement. In the case of carbonate of lime they are generally of the former order.Among other work conducted at the Marine Station, Granton, during the past year, a number of experiments were instituted with the view of showing how far carbonate of lime was influenced in this direction by metallic and other salts.Corals, preferably the more porous and soft varieties, were selected for this purpose, and these were exposed to the action of solutions of the following salts:–Chloride of manganese, sulphate of iron, chloride of zinc, chloride of chromium, nitrate of nickel, nitrate of cobalt, nitrate of copper, nitrate of lead, chloride of mercury, chloride of tin, nitrate of silver, phosphate of ammonia.

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