Results 31 to 40 of about 448,504 (204)
Removal of quaternary ammonium compounds in ion exchange process [PDF]
E3S Web of Conferences, 2019 The study attempted to evaluate the effectiveness of ion exchange process in cationic surfactant (benzalkonium chloride, BAC) removal from model solutions.
Klimonda Aleksandra, Kowalska Izabela
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Research on the efficiency of filter media / Filtravimo užpildų efektyvumo tyrimai
Mokslas: Lietuvos Ateitis, 2013 The main problems of ground water for drinking purposes in Lithuania include the increased concentration of iron, ammonium and manganese compounds. Organic compounds have the main impact on removing iron, ammonium and manganese compounds. The coagulation
Ramunė Albrektienė +2 more
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Potential uptake of dissolved organic matter by seagrasses and macroalgae [PDF]
, 2011 Dissolved organic nitrogen (DON) acts as a large reservoir of fixed nitrogen. Whereas DON utilization is common in the microbial community, little is known about utilization by macrophytes.
Bouma, Tjeerd J. +8 more
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Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2023 In this paper, a computer quantum-chemical simulation of the interaction of selenium nanoparticles with quaternary ammonium compounds was carried out, in which models of molecular complexes, electron density distribution, as well as higher populated and ...
A.V. Blinov +6 more
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Computation of liquid-liquid equilibria and phase stabilities: implications for RH-dependent gas/particle partitioning of organic-inorganic aerosols [PDF]
, 2010 Semivolatile organic and inorganic aerosol species partition between the gas and aerosol particle phases to maintain thermodynamic equilibrium. Liquid-liquid phase separation into an organic-rich and an aqueous electrolyte phase can occur in the aerosol ...
Marcolli, C. +3 more
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Organic Materials, 2022 Among the 1,3,5-trisubstituted 2,4,6-triethylbenzenes bearing pyrazolyl groups, the compounds with 3,5-dimethylpyrazolyl moieties were found to be effective receptors for ammonium ions (NH4 +).
Felix Fuhrmann +2 more
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Effect of operational parameters and Pd/In catalyst in the reduction of nitrate using copper electrode [PDF]
, 2017 Water with high concentration of nitrate may cause damage to health and to the environment. This study investigated how concentration, current density, flow, pH, the use of Pd/In catalyst and operating mode (constant current density and constant cell ...
Beltrame, Thiago Favarini +5 more
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Synthesis of some biologically active 2,4’-bipyridine-5-carbonitriles carrying the 4-hydroxyphenylthio moiety [PDF]
Journal of the Serbian Chemical Society, 2009 A series of new 4-aryl-2’-[(4-hydroxyphenyl)thio]-6oxo-1,6-dihydro-2,4’-bipyridine-5-carbonitriles (3a–k) and 6-amino-4aryl-2’-[(4-hydroxyphenyl)thio]-2,4’-bipyridine-5-carbonitriles (4a–h) were synthesized from 4-hydroxythiophenol (1). The reaction of 4-
T. KARABASANAGOUDA +2 more
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Pentazole and Ammonium Pentazolate: Crystalline Hydro-Nitrogens at High Pressure
, 2017 Two new crystalline compounds, pentazole (N_{5}H) and ammonium pentazolate (NH_{4})(N_{5}), both featuring cyclo-{\rm N_{5}^{-}} are discovered using first principles evolutionary search of the nitrogen-rich portion of the hydro-nitrogen binary phase ...
Oleynik, Ivan I., Steele, Brad A.
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Molbank, 2023 The synthesis of the title compounds was performed from (-)-cis-myrtanic and (-)-myrtenic acids. The compounds obtained were characterized using 1H- and 13C-NMR, IR, and high-resolution mass spectrometry.
Ilmir R. Gilfanov +10 more
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