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Relevant bibliographies by topics / Aqueous Alkaline

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Academic literature on the topic 'Aqueous Alkaline'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "Aqueous Alkaline"

1

Liu, C., J. Liu, Y. Rong, N. Liang, and L. Rong. "Aqueous extraction of limonin from Citrus reticulate Blanco." Czech Journal of Food Sciences 30, No. 4 (2012): 364–68. http://dx.doi.org/10.17221/108/2011-cjfs.

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The replacement of organic solutions in the extraction of limonin from citrus seeds with an alkaline solution was investigated. This method was based on the reversible conversion of limonin to limonoate A-ring lactone via ring-opening of D-ring lactone at different pH values. The extraction conditions, optimised using Taguchi experimental design, were as follows: pH 11, temperature 70&deg;C, alkaline solution/seeds ratio 20:1 (v/w), ultrasonic power 800 W for 30 minutes. A yield of 7.5 mg/g (limonin/citrus seeds) of 98% pure limonin was obtained. &nbsp;

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S., C. HIREMATH, A. CHIMATADAR S., and R. RAJU J. "Oxidation of Dimethylamine by Diperioclatonickelate( IV) in Aqueous Alkaline Medium." Journal of Indian Chemical Society Vol. 72, Apr 1995 (1995): 253–56. https://doi.org/10.5281/zenodo.5902210.

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Department of Chemistry, Karnatak University. Dharwad-580 003 <em>Manuscript received 27 April 1993, revised 24 September 1993, accepted 2 December 1993</em> The title reaction is found to be first order in [DPN] (DPN, diperiodatonickelate(IV)) and fractional order both in [DMA] (DMA, diamethylamine) and [0H<sup>-</sup>]. Periodate causes retradation. Effects of added products, Jomc strength, dielectric constant and temperature on the oxidation kientics have been studied. MPN (monoperiodatonickelate(IV)) was found to be the active form of oxidant. A tentative mechanism with complex format

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North, Michael R., M. Alejandra Fleischer, and Thomas W. Swaddle. "Precipitation from alkaline aqueous aluminosilicate solutions." Canadian Journal of Chemistry 79, no. 1 (2001): 75–79. http://dx.doi.org/10.1139/v00-182.

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The longevity of metastable, highly alkaline Na and K aluminosilicate solutions has been examined over a wide range of Si/Al concentration ratios R (0.04 [Formula: see text] R [Formula: see text] 20) at 24°C and, in selected cases, at 50 and 75°C. In general, the longest solution lifetimes (tppt) (several weeks) were found at 24°C and for the highest alkalinities and (or) large R, but long tppt were also found for R = 1.0 at the lower alkalinities. Solution lifetimes generally shortened when the temperature was raised, but the opposite effect was observed with the smaller Al concentrations whe

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Bird, Robert W. "Aqueous alkaline cleaners: A better alternative." Metal Finishing 93, no. 3 (1995): 10–20. http://dx.doi.org/10.1016/0026-0576(95)93623-a.

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S., C. HIREMATH, A. CHIMATADAR S., and R. RAJU J. "Osmium(VIII)-catalysed Oxidation of Dimethylamine by Periodate in Aqueous Alkaline Medium." Journal of Indian Chemical Society Vol. 73, Jun 1996 (1996): 279–81. https://doi.org/10.5281/zenodo.5897683.

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Department of Chemistry, Arts and Science College, Jamkhandi Department of Chemistry, Karnatak University, Dharwad-580 003 <em>Manuscript received 9 February 1994, revised 9 August 1994, accepted 15 September 1994</em> Osmium(VIII)-catalysed Oxidation of Dimethylamine by Periodate in Aqueous Alkaline Medium.

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Guthrie, J. Peter, and John Cossar. "Alkaline cleavage of trihaloacetophenones." Canadian Journal of Chemistry 68, no. 9 (1990): 1640–42. http://dx.doi.org/10.1139/v90-255.

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Rate constants for haloform cleavage of trifluoro-, trichloro-, and tribromoacetophenone have been measured in aqueous solution; apparent second-order rate constants for reaction by the monoanion are in the ratio 1:5.3 × 1010:2.2 × 1013. Keywords: haloform cleavage, reactivity, trihalomethide leaving groups.

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Li, Dr Huan, and Dr Ling Zhao. "EFFECT OF ALKALINE CONDITIONS ON THE CATALYSIS AND KINETICS OF SODIUM BOROHYDRIDE HYDROLYSIS." International Journal of Research in Engineering 5, no. 3 (2025): 1–5. https://doi.org/10.55640/ijre-05-03-01.

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The hydrolysis of sodium borohydride (NaBH₄) is a significant reaction due to its potential applications in energy storage, fuel cells, and hydrogen production. This study investigates the kinetics of catalytic hydrolysis of sodium borohydride in both aqueous and aqueous-alkaline solutions. The reaction rates are measured under varying conditions of concentration, temperature, and pH to understand the impact of these variables on the overall rate of hydrogen production. Using a range of catalysts, including transition metal catalysts, the study also explores how the catalytic nature influences

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8

Nikonova, Natalya N., Tatyana V. Hurshkainen, Oksana G. Shevchenko, and Alexander V. Kuchin. "“Green technology” processing of pine (Pinus sylvestris L.) and larch (Larix sibirica Ledeb.) wood greenery to produce bioactive extracts." Holzforschung 76, no. 3 (2021): 276–84. http://dx.doi.org/10.1515/hf-2021-0122.

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Abstract In order to explore the extractives of conifers an effective and environmentally friendly method of extraction with aqueous-alkaline solution allowing to isolate up to 10.4% of extractive substances (ES) from pine wood greenery and up to 6.9% from larch wood greenery was investigated. The component fractional composition of aqueous-alkaline extracts was studied. The antioxidant fraction activity of neutral and acidic components isolated from the produced extracts was evaluated. It was found that these fractions have a high antioxidant activity, where the activity of larch extract comp

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Staun, Chris, Neetu Bansal, and James Vaughan. "Electrocrystallization and solubility of mercury in alkaline solution." Canadian Journal of Chemistry 96, no. 4 (2018): 385–93. http://dx.doi.org/10.1139/cjc-2017-0592.

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The chemical thermodynamics of mercury in aqueous sodium hydroxide solution has been investigated through electrochemical polarisation and solubility experiments. A review of thermodynamic data allowed determination of the Hg/HgO electrode potential. Cyclic voltammetry revealed a complex anodic reaction beginning with aqueous dissolution of elemental mercury and subsequent electrocrystallization of mercuric oxide. Cathodic sweeps showed dual reduction reactions, attributed to the presence of aqueous mercury and mercuric oxide. The solubility and hence activity of elemental mercury in sodium hy

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Liu, Qi Feng, Qi Wang, and Shao Hui Yan. "Modification of PVDF Membranes by Alkaline Treatment." Applied Mechanics and Materials 316-317 (April 2013): 1033–36. http://dx.doi.org/10.4028/www.scientific.net/amm.316-317.1033.

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Poly(vinylidene fluoride) (PVDF) powder was treated with aqueous sodium hydroxide to obtain partially defluorinated fluoropolymers with expected properties such as improved hydrophilicity and fouling resistance (used as membrane material). The effects of concentration of aqueous sodium hydroxide were investigated. The results showed that the membrane’s hydrophilicity increased with increase of the fraction of alkaline treated PVDF powder. The fouling potential also decreased with the increase of the fraction of alkaline treated PVDF powder.

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Dissertations / Theses on the topic "Aqueous Alkaline"

1

Kannangara, D. C. W. "Anodic zinc oxidation processes in aqueous alkaline and carbonate solutions." Thesis, University of Ottawa (Canada), 1985. http://hdl.handle.net/10393/4613.

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Xu, Zitong. "Removal of Heavy Metal Ions from Aqueous Solution by Alkaline Filtration." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40105.

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An innovative approach for the removal of heavy metal ions such as Pb2+ and Cd2+ from aqueous solution was evaluated. It was established that alkaline filtration, which is in essence the combination of alkaline precipitation and membrane filtration, could drastically increase both the efficiency and completeness of Pb2+ or Cd2+ ions removal, producing water whose metal concentration satisfying drinking water standard from a simulation wastewater containing 5 ppm or more Pb2+ or Cd2+ ions. Filtration with three different membranes, including microfiltration (MF), ultrafiltration (UF), and nanof

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Jose, Amala Mary. "Alkaline aqueous reforming of cellulose to produce high puruty hydrogen without COx." Thèse, Université du Québec à Trois-Rivières, 2013. http://depot-e.uqtr.ca/7302/1/030619136.pdf.

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Zhou, Ting. "Electrodeposition of Molybdenum-Based Coatings from Aqueous Alkaline Solutions for Enhanced Corrosion Resistance." Thesis, University of North Texas, 2018. https://digital.library.unt.edu/ark:/67531/metadc1157641/.

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Zn-Mo coatings are very promising environment friendly anticorrosive coatings as replacement materials for cadmium and chromium (VI) based conversion layers. Electrodeposition has become a favorable technique in fabricating coatings due to its low cost, ease of use, and overall experimental control of coating quality. Very little research so far has been done for the electrodeposition of Zn-Mo coatings under alkaline conditions. In this work, Zn and Zn-Mo coatings were electrochemically deposited on stainless steel from an aqueous alkaline citrate solution. An organic compound, vanillin, was a

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Husar, Richard. "Investigation into the Formation of Nanoparticles of Tetravalent Neptunium in Slightly Alkaline Aqueous Solution." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-177381.

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Considering the worldwide growing discharge of minor actinides and the current need for geological disposal facilities for radioactive waste, this work provides a contribution to the safety case concerning Np transport if it would be released from deep repository sites and moving from alkaline cement conditions (near-field) to more neutral environmental conditions (far-field). The reducing conditions in a nuclear waste repository render neptunium tetravalent, which is assumed to be immobile in aqueous environment due to the low solubility solution of Np(IV). For tetravalent actinide nuclides,

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Mohomed, Naleem Mohomed Nawavi. "Molecular dynamics simulations of aqueous ion solutions." Diss., Kansas State University, 2017. http://hdl.handle.net/2097/35458.

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Doctor of Philosophy<br>Department of Chemistry<br>Paul Edward Smith<br>The activity and function of many macromolecules in cellular environments are coupled with the binding of ions such as alkaline earth metal ions and poly oxo anions. These ions are involved in the regulation of important processes such as protein crystallization, nucleic acid and protein stability, enzyme activity, and many others. The exact mechanism of ion specificity is still elusive. In principle, computer simulations can be used to help provide a molecular level understanding of the dynamics of hydrated ions and their

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Park, Hyeon. "Thermodynamics of sodium aluminosilicate formation in aqueous alkaline solutions relevant to closed-cycle kraft pulp mills." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0020/NQ46404.pdf.

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Siong, Victor [Verfasser]. "Research and optimizations of iron composites as negative electrode materials for aqueous alkaline batteries / Victor Siong." Ulm : Universität Ulm, 2019. http://d-nb.info/1183099711/34.

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Orpiszak, Martin. "Oxidation of cellulose to favour its dissolution in alkaline aqueous solution before regeneration into textile yarn." Thesis, KTH, Kemiteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296556.

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Detta examensarbete är en del av CelluFil-projektet och syftar till att optimera förhållandena för upplösning av cellulosa i vattenlösning av natriumhydroxid följd av regenering i form av ett garn. Tidigare arbeten har visa tatt cellulosa kan lösas i vattenlösning vid -10°C, men sådana förhållanden är inte tillämpliga i industriell skala. Målet med detta projekt är att arbeta vid rumstemperatur. För detta kommer karboxylgrupper att införas i cellulosakedjorna för att öka cellulosans lighet i ett alkaliskt vattenbaserat medium. Därefter kommer cellulosan att fällas ut igen i en sur lösning. Na

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zhang, peilun. "Zn Corrosion in Alkaline Aqueous Electrolytes: Effect of Electrolyte Composition on Corrosion Rate and Inhibitors to Suppress Corrosion." Case Western Reserve University School of Graduate Studies / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1618400150411797.

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Books on the topic "Aqueous Alkaline"

1

Irma, Lambert, Clever H. Lawrence, Einaga Hisahiko, and International Union of Pure and Applied Chemistry. Commission on Solubility Data., eds. Alkaline earth hydroxides in water and aqueous solutions. Pergamon, 1992.

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2

Loop, Caroline M. Aqueous and precipitate chemistry of coal mine drainage water in alkaline environments. Pennsylvania State University, Graduate School, 2003.

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3

Lehikoinen, Pertti. Hydrolytic decomposition of purine nucleosides in aqueous acid and alkali: Kinetics and mechanisms. Dept. of Chemistry and Biochemistry, University of Turku, 1986.

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4

Abbas, Ahsan Khalil. Radiation-electron spin resonance studies on alkali-metal hydroxide aqueous glasses at low temperatures. University of Salford, 1985.

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5

Alkaline Earth Hydroxides in Water and Aqueous Solutions. Elsevier, 1992. http://dx.doi.org/10.1016/c2009-0-00545-5.

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Clever, H. L., and I. Lambert. Alkaline Earth Hydroxides in Water and Aqueous Solutions. Elsevier Science & Technology Books, 2013.

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(Editor), I. Lambert, and H. L. Clever (Editor), eds. Alkaline Earth Hydroxides in Water and Aqueous Solutions (IUPAC Solubility Data Series). Pergamon, 1992.

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8

Kortenaar, Marnix Ten. Adsorption & Oxidation of Formaldehyde on Transition Metals Catalysts from Alkaline Aqueous Solutions. Delft Univ Pr, 2003.

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9

Bohnsack, G. The Solubility of Magnetite in Water & in Aqueous Solutions of Acid & Alkali. Taylor & Francis, 1988.

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10

Bridges, John C. Evolution of the Martian Crust. Oxford University Press, 2017. http://dx.doi.org/10.1093/acrefore/9780190647926.013.18.

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This is an advance summary of a forthcoming article in the Oxford Encyclopedia of Planetary Science. Please check back later for the full article.Mars, which has a tenth of the mass of Earth, has cooled as a single lithospheric plate. Current topography gravity maps and magnetic maps do not show signs of the plate tectonics processes that have shaped the Earth’s surface. Instead, Mars has been shaped by the effects of meteorite bombardment, igneous activity, and sedimentary—including aqueous—processes. Mars also contains enormous igneous centers—Tharsis and Elysium, with other shield volcanoes

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Book chapters on the topic "Aqueous Alkaline"

1

Wu, G., M. Heitz, and E. Chornet. "The Depolymerization of Lignin via Aqueous Alkaline Oxidation." In Advances in Thermochemical Biomass Conversion. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-011-1336-6_127.

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Dou, Aichun, Lei Yu, Mingru Su, and Yunjian Liu. "Dissolution Thermodynamics of Smithsonite in Alkaline Iminodiacetate Aqueous Solution." In Proceedings of the 3rd Pan American Materials Congress. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-52132-9_49.

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Hayashi, N., T. Ueno, H. Shiraishi, T. Nishida, M. Toriumi, and S. Nonogaki. "A Silicon-Containing Positive Photoresist Developable with Aqueous Alkaline Solution." In Polymers for High Technology. American Chemical Society, 1987. http://dx.doi.org/10.1021/bk-1987-0346.ch018.

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Nelson, David A. "Aqueous, Alkaline Liquefaction of Wood Fractions and Lignin Model Compounds." In Research in Thermochemical Biomass Conversion. Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2737-7_36.

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Cabelli, Diane E., and Virender K. Sharma. "Aqueous Ferrate(V) and Ferrate(IV) in Alkaline Medium: Generation and Reactivity." In Ferrates. American Chemical Society, 2008. http://dx.doi.org/10.1021/bk-2008-0985.ch010.

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Caullet, P., and J. L. Guth. "Observed and Calculated Silicate and Aluminosilicate Oligomer Concentrations in Alkaline Aqueous Solutions." In ACS Symposium Series. American Chemical Society, 1989. http://dx.doi.org/10.1021/bk-1989-0398.ch006.

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Videm, K. "The Anodic Behaviour of Iron and Steel in Very Alkaline Aqueous Solutions and in Cement Mortar." In Electrochemical Approach to Selected Corrosion and Corrosion Control Studies (EFC 28). CRC Press, 2024. http://dx.doi.org/10.1201/9781003580058-27.

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Shay, Gregory D. "Alkali-Swellable and Alkali-Soluble Thickener Technology." In Polymers in Aqueous Media. American Chemical Society, 1989. http://dx.doi.org/10.1021/ba-1989-0223.ch025.

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Toda, Haruhiko, Takeshi Chuma, Morihiro Saito, Jun Kuwano, and Hidenobu Shiroishi. "Oxygen Reduction Electrode Properties of the Ba(Ce, Gd, Ru)O_3-δOxides in Alkaline Aqueous Solution." In Electroceramics in Japan X. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-449-9.183.

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LeSota, S., E. W. Lewandowski, and E. J. Schaller. "Hydrophobically Modified Alkali-Soluble Emulsions as Thickeners for Exterior Latex Paints." In Polymers in Aqueous Media. American Chemical Society, 1989. http://dx.doi.org/10.1021/ba-1989-0223.ch028.

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Conference papers on the topic "Aqueous Alkaline"

1

Gill, J. S., and M. A. Yorke. "Calcium Carbonate Control in Highly Supersaturated Aqueous Environment." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94195.

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Abstract Inhibition of calcium carbonate becomes increasingly difficult with increasing calcium carbonate supersaturation. Scarcity of good quality water and tougher water discharge regulations are driving higher reuse of water, which leads to higher cycles in recirculating cooling tower water. In terms of the supersaturation, which is a ratio of the product of free scale forming ions to the equilibrium solubility product, the water treatment industry in the past was able to control calcium carbonate inhibition up to 100-120X calcite supersaturation. This paper reports chemical technology capa

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Appleby, A. J. "Corrosion in Low and High Temperature Fuel Cells - an Overview." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86079.

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Abstract Fuel cell anodes operate in a reducing atmosphere, whereas cathodes operate under strongly oxidizing conditions in difficult electrolytic environments. Electrochemical corrosion can limit the working cathode potential, hence fuel cell operating efficiency, as well as fuel cell lifetime. The four principal classes of electrolyte are aqueous alkali, aqueous acid, and two high-temperature CO2-rejecting systems: molten alkali carbonates (ca. 650°C) and solid oxide ionic conductors (1000°C). For the aqueous electrolytes, thermodynamically stable cathode materials include some of the noble

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Buchheit, R. G., F. D. Wall, G. E. Stoner, and J. P. Moran. "Stress Corrosion Cracking of Al-Li-Cu-Zr Alloy 2090 in Aqueous Cl− and Mixed CO32−/Cl− Environments." In CORROSION 1991. NACE International, 1991. https://doi.org/10.5006/c1991-91099.

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Abstract A comparison of the short-tranverse SCC behavior of 2090 in pH 5.5 Cl− and alkaline CO32−/Cl− solutions using a static load smooth bar SCC technique was made. In the alkaline CO32−/Cl− solutions, Ebr for the α-Al matrix phase was 0.130 V more positive than the Ebr of the subgrain boundary T1 phase. In this environment, stress corrosion cracking test specimens subjected to potentials in the window defined by the two breakaway potentials failed along an intersubgranular path in less than an hour. In the Cl− environment, the Ebr values for the two phases were nearly equal and this rapid

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Athanassopoulos, Evangelos, Stamatia Rokidi, and Petros G. Koutsoukos. "Barium Sulfate Crystal Growth and Inhibition: Implications of Molecular Structure on Scale Inhibition." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07460.

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Abstract Barium sulfate scale deposits are serious impediments in the gas and oil production industry, as they are tenaciously adhering on surfaces and they are hard to remove due to the independence of their solubility on pH. The practice most commonly applied is prevention of their formation using water soluble compounds acting as inhibitors which block active crystal growth sites. Blocking efficiency depends to a large extent on their molecular structure. In the present work we report on the kinetics of nucleation and crystal growth of Barium Sulfate from aqueous supersaturated solutions us

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Masuda, Seiya, Tetsushi Miyata, Hiroaki Idei, Shota Oi, and Hiroyuki Suzuki. "Photosensitive Aqueous Alkaline Developable Magnetic Material for Inductor and Balun Transformers in 3D Wafer-Level Packages." In 2024 IEEE 26th Electronics Packaging Technology Conference (EPTC). IEEE, 2024. https://doi.org/10.1109/eptc62800.2024.10909865.

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Lu, Baotong, Ke Wang, Xuemei Wan, and Jingli Luo. "Degradations of Mechanical Properties in Surface Layer and Erosion Resistance of Carbon Steel in Slurries with Different pH and Chemical Compositions." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10144.

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Abstract Effects of anodic dissolution in corrosive slurries with different chemical compositions and pHs on the in-situ surface mechanical properties and slurry erosion resistance of carbon steel are investigated. The experimental measurements indicate that the materials loss rate due to corrosion-enhanced erosion increases linearly with the logarithm of anodic current density. The in-situ nanoindentation shows that the presence of anodic current on surface reduces the surface hardness. Under the galvanostatic control, the erosion rates in acidic slurries are much higher than those in the neu

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Doja, Somi, Lukas Bichler, and Simon Fan. "Pitting Corrosion in AZ31 Magnesium Alloy in Potassium-based Electrolytes." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09779.

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Abstract AZ31 (UNS M11311) is popular wrought magnesium alloy used in many aerospace and automotive applications. However, its wider use is hindered by the paucity of information regarding its corrosion resistance in highly alkaline environments (pH &gt; 13). Of particular interest is pitting corrosion, which has been reported to cause rapid localized corrosion in aqueous environments. In this work, KOH-based electrolytes were used to study the corrosion behavior of AZ31 alloy in highly alkaline environment. The effect of dopants and exposure time on pit initiation was studied via scanning

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Pepenar, Ioan. "Electrochemical Behavior of the Prestressing Steel in Alkaline Electrolytes: Influence of Cement Type." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4145.

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Abstract The paper presents the study results on the electrochemical behavior of prestressing steel in aqueous suspensions of cements by using the potentiodynamic polarization technique. The electrochemical measurements were performed on two types of prestressing steel used as tendons for prestressed concrete. Six types of Portland cement recommended for use in prestressed concrete structures have been tested. The anodic potentiodynamic polarization curves of prestressing steel specimens in electrolyte solutions with pH of 12.56 to 12.76 were traced in the potential range of -1000 mV to +1000

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Videm, Ketil. "The Reliability of Electrochemical Techniques for Assessing Corrosion of Steel in Concrete." In CORROSION 1998. NACE International, 1998. https://doi.org/10.5006/c1998-98749.

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Abstract A large experimental program has been carried out with the reinforcement in a 16 years old, 840 m long bridge at the coast of Northern Norway, in alkaline solutions and in mortar slabs with and without chloride additions. The electrochemical techniques covered are: potential mapping with reference electrodes at the surface, corrosion potential monitoring with reference electrodes embedded in the concrete, potentiodynamic scans, potentiostatic polarization, galvanostatic pulse technique, AC-impedance spectroscopy and monitoring of electrochemical noise. The standard electrochemical tec

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Pepenar, Ioan. "Electrochemical Behavior of the Prestressing Steel in Alkaline Electrolytes: Influence of Chloride Ions." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09708.

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Abstract The paper presents the study on the electrochemical behavior of prestressing steel in alkaline electrolytes, with various levels of chloride concentration by using the cyclic potentiodynamic polarization technique. The electrochemical measurements were performed on two types of high-strength steel used as tendons for prestressed concrete: cold-drawn steel and thermally treated (quenched and tempered). The anodic potentiodynamic polarization curves of prestressing steel specimens in aqueous suspension of portland cement CEM I (pH = 12.7) with 0.0001…1.0 M [Cl-] were traced with a scan

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Reports on the topic "Aqueous Alkaline"

1

Crawford, C. L., and R. A. Peterson. Decomposition Studies of Triphenylboron, Diphenylborinic Acid and Phenylboric Acid in Aqueous Alkaline Solutions Containing Copper. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/626418.

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Hyder, M. L. The Role of Oxygen in the Copper-Catalyzed Decomposition of Phenylborates in Aqueous Alkaline Solutions. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/585000.

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3

Scherson, D., G. Chottiner, P. Herrara-Fierro, and Xuekun Xing. Spectroscopic studies of the passive film on alkali and alkaline earth metals in non-aqueous solvents: A surface science approach: Final report. Office of Scientific and Technical Information (OSTI), 1987. http://dx.doi.org/10.2172/5554162.

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Desbarats, A. J., and J. B. Percival. Hydrogeochemistry of mine tailings from a carbonatite-hosted Nb-REE deposit, Oka, Quebec, Canada. Natural Resources Canada/CMSS/Information Management, 2023. http://dx.doi.org/10.4095/331256.

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Abstract:

Environmental impacts associated with the mining of carbonatite deposits are an emerging concern due to the demand for critical metals. This study investigates the chemistry of tailings seepage at the former Saint Lawrence Columbium mine near Oka, Québec, Canada, which produced pyrochlore concentrate and ferroniobium from a carbonatite-hosted Nb-REE deposit. Its objectives are to characterize the mineralogy of the tailings and their pore water and effluent chemistries. Geochemical mass balance modeling, constrained by aqueous speciation modeling and mineralogy, is then used to identify reactio

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