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Title: | The solution chemistry of the copper (II) - ammonia thiosulfate aqueous system | Authors: | Povar, Igor Ubaldini, Stefano Lupascu, Tudor Spinu, Oxana Pintilie, Boris |
Keywords: | Ammonia;Copper (II);Leaching;Thermodynamics;Thiosulfate | Issue Date: | 2018 | Publisher: | National Research and Development Institute for Industrial Ecology ECOIND | Abstract: | The paper presents a new thermodynamic approach to studying mixed ligand complex formation reactions in multicomponent two-phase systems “solid phase saturated aqueous solution” under real conditions. The quintessence of developed approach consists in the thermodynamic analysis of concurrent reactions in the system Cu (II)-NH3-S2O32--H2O under real conditions on the basis of the introduced notion of the generalized reaction equation. The formation of mixed ligand complex species Cu(OH) i (NH3 ) j (S2O3 ) k is characterized by certain peculiarities in the behavior of studied two-phase heterogeneous systems. The new feature is to focus on the chemical description of the overall process of complex formation consisting of a series of concurrent reactions, where the nature and ratio of the concentrations of chemical species, formed in such reactions, depend on the ratio of the concentrations of the metal Cu2+ and ligands, temperature and other factors (thermodynamic parameters). |
Description: | International Symposium "The Environment and the Industry", 20-21 September 2018, Bucharest, Romania, pp. 162-169 |
URI: | 10.21698/simi.2018.fp20 http://hdl.handle.net/123456789/1238 |
ISSN: | L:1843-5831 (online); 2457-8371 |
Appears in Collections: | SIMI 2018 |
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