Stability of gold complex based on mercaptotriazole in acid and neutral media
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2018
Authors
Dimitrijević, Silvana
Rajčić-Vujasinović, Mirjana M.
Dimitrijević, Stevan

Trumić, Biserka
Ivanović, A.
Article (Published version)

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Show full item recordAbstract
Stability of the gold complex based on mercaptotriazole in two acid electrolytes with different pH values and in a neutral medium was investigated in this work. Investigation was performed by visual monitoring and electrochemical characterization of the electrolytes in a period of one year or until first visible signs of complex decomposition. Electrochemical characterization of the gold complex based on mercaptotriazole was performed by open circuit potential measurement, cycling voltammetry method and by recording the polarization curves. The pH values of the electrolytes were measured before and after each electrochemical experiment. These tests were performed at different starting pH values: 2, 4 and 7 at optimal concentration of gold in the electrolyte of 2.5 g/dm(3). For electrolytes with pH values of four and seven, the first visible signs of the complex decomposition appeared tree months after synthesis. Electrolyte with pH value of two was visually stable for a period of one y...ear.
Keywords:
stability / gold complex / mercaptotriazole / non-cyanide gold electrolyte / electrochemical characterizationSource:
Bulgarian Chemical Communications, 2018, 50, 1, 50-57Funding / projects:
- Development of technologies for recycling of precisious, rare and associated metals from solid waste in Serbia to high purity products (RS-34024)
- Innovative synergy of by-products, waste minimization and clean technologies in metallurgy (RS-34033)
Institution/Community
Inovacioni centarTY - JOUR AU - Dimitrijević, Silvana AU - Rajčić-Vujasinović, Mirjana M. AU - Dimitrijević, Stevan AU - Trumić, Biserka AU - Ivanović, A. PY - 2018 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3794 AB - Stability of the gold complex based on mercaptotriazole in two acid electrolytes with different pH values and in a neutral medium was investigated in this work. Investigation was performed by visual monitoring and electrochemical characterization of the electrolytes in a period of one year or until first visible signs of complex decomposition. Electrochemical characterization of the gold complex based on mercaptotriazole was performed by open circuit potential measurement, cycling voltammetry method and by recording the polarization curves. The pH values of the electrolytes were measured before and after each electrochemical experiment. These tests were performed at different starting pH values: 2, 4 and 7 at optimal concentration of gold in the electrolyte of 2.5 g/dm(3). For electrolytes with pH values of four and seven, the first visible signs of the complex decomposition appeared tree months after synthesis. Electrolyte with pH value of two was visually stable for a period of one year. T2 - Bulgarian Chemical Communications T1 - Stability of gold complex based on mercaptotriazole in acid and neutral media EP - 57 IS - 1 SP - 50 VL - 50 UR - https://hdl.handle.net/21.15107/rcub_technorep_3794 ER -
@article{ author = "Dimitrijević, Silvana and Rajčić-Vujasinović, Mirjana M. and Dimitrijević, Stevan and Trumić, Biserka and Ivanović, A.", year = "2018", abstract = "Stability of the gold complex based on mercaptotriazole in two acid electrolytes with different pH values and in a neutral medium was investigated in this work. Investigation was performed by visual monitoring and electrochemical characterization of the electrolytes in a period of one year or until first visible signs of complex decomposition. Electrochemical characterization of the gold complex based on mercaptotriazole was performed by open circuit potential measurement, cycling voltammetry method and by recording the polarization curves. The pH values of the electrolytes were measured before and after each electrochemical experiment. These tests were performed at different starting pH values: 2, 4 and 7 at optimal concentration of gold in the electrolyte of 2.5 g/dm(3). For electrolytes with pH values of four and seven, the first visible signs of the complex decomposition appeared tree months after synthesis. Electrolyte with pH value of two was visually stable for a period of one year.", journal = "Bulgarian Chemical Communications", title = "Stability of gold complex based on mercaptotriazole in acid and neutral media", pages = "57-50", number = "1", volume = "50", url = "https://hdl.handle.net/21.15107/rcub_technorep_3794" }
Dimitrijević, S., Rajčić-Vujasinović, M. M., Dimitrijević, S., Trumić, B.,& Ivanović, A.. (2018). Stability of gold complex based on mercaptotriazole in acid and neutral media. in Bulgarian Chemical Communications, 50(1), 50-57. https://hdl.handle.net/21.15107/rcub_technorep_3794
Dimitrijević S, Rajčić-Vujasinović MM, Dimitrijević S, Trumić B, Ivanović A. Stability of gold complex based on mercaptotriazole in acid and neutral media. in Bulgarian Chemical Communications. 2018;50(1):50-57. https://hdl.handle.net/21.15107/rcub_technorep_3794 .
Dimitrijević, Silvana, Rajčić-Vujasinović, Mirjana M., Dimitrijević, Stevan, Trumić, Biserka, Ivanović, A., "Stability of gold complex based on mercaptotriazole in acid and neutral media" in Bulgarian Chemical Communications, 50, no. 1 (2018):50-57, https://hdl.handle.net/21.15107/rcub_technorep_3794 .