Relevant bibliographies by topics / PH (potential of hydrogen)

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'PH (potential of hydrogen)'

Author: Grafiati
Published: 4 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "PH (potential of hydrogen)"

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Wu, Qingrong, Yu Fu, Wanying Yang, and Shouxin Liu. "A Temperature/pH Double-Responsive and Physical Double-Crosslinked Hydrogel Based on PLA and Histidine." Gels 8, no. 9 (2022): 570. http://dx.doi.org/10.3390/gels8090570.

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Hydrogel is a good drug carrier, widely used in the sustained-release aspect of tumor drugs, which can achieve the continuous release of drugs to the tumor sites. In this study, diethylene glycol monomethyl ether methacrylate (MEO2MA) and poly (ethylene glycol) methyl ether methacrylate (OEGMA) are temperature-sensitive monomers. N-Methacryloyl-L-Histidine (Mist) is pH sensitive monomer and ligand for metal coordination bond. The temperature-sensitive monomers and pH sensitive monomer with stereocomplex of modified polylactic acid (HEMA-PLLA30/PDLA30) were mixed, under 2,2’-azobis (2-methylpro
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Sudewa, Banu, and Febrian Hadiatna. "EVALUASI SENSOR FIT0348 SEBAGAI ALAT UKUR POTENTIAL OF HYDROGEN (PH) LARUTAN." Jurnal Elektro dan Telekomunikasi Terapan 4, no. 2 (2018): 570. http://dx.doi.org/10.25124/jett.v4i2.1129.

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Pada penelitian ini dilakukan Evaluasi pada sensor pH FIT0348 sebagai alat ukur pH berbasis mikrokontroler. Evaluasi ini dilakukan untuk mengetahui seberapa besar tingkat akurasi, ketidakpastian dalam kalibrasi dan kenaikan pH air. Perancangan dan Impelementasi prototype sistem pemantauan pH terdiri dari sensor pH FIT0348, mikrokontroler ATmega16A, rangkaian amplifier, personal computer. Pengujian dilakukan dengan cara melakukan kalibrasi, dan pemantauan derajat keasaman larutan selama 20 jam dengan interval pengambilan data 1 jam. Larutan yang menjadi objek pengujian adalah air mineral sebany
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Elvitigala, Kelum Chamara Manoj Lakmal, Wildan Mubarok, and Shinji Sakai. "Hydrogels with Ultrasound-Treated Hyaluronic Acid Regulate CD44-Mediated Angiogenic Potential of Human Vascular Endothelial Cells In Vitro." Biomolecules 14, no. 5 (2024): 604. http://dx.doi.org/10.3390/biom14050604.

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The development of hydrogels that allow vascular endothelial cells to form capillary-like networks is critical for advancing tissue engineering and drug discovery. In this study, we developed hydrogels composed of phenolated hyaluronic acid (HA-Ph) with an average molecular weight of 490–159 kDa via sonication in an aqueous solution. These hydrogels were synthesized by the horseradish peroxidase-catalyzed crosslinking of phenol moieties in the presence of hydrogen peroxide and phenolated gelatin. The sonication-degraded HA-Ph (198 kDa) significantly enhanced the migration ability of human umbi
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Dubashynskaya, Natallia V., Valentina A. Petrova, Dmitry P. Romanov, and Yury A. Skorik. "pH-Sensitive Drug Delivery System Based on Chitin Nanowhiskers–Sodium Alginate Polyelectrolyte Complex." Materials 15, no. 17 (2022): 5860. http://dx.doi.org/10.3390/ma15175860.

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Polyelectrolyte complexes (PECs), based on partially deacetylated chitin nanowhiskers (CNWs) and anionic polysaccharides, are characterized by their variability of properties (particle size, ζ-potential, and pH-sensitivity) depending on the preparation conditions, thereby allowing the development of polymeric nanoplatforms with a sustained release profile for active pharmaceutical substances. This study is focused on the development of hydrogels based on PECs of CNWs and sodium alginate (ALG) for potential vaginal administration that provide controlled pH-dependent antibiotic release in an aci
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Karidio Daouda I., Oumoul-Kairou, David Tsuanyo, Adjoumani Kouakou, and Benjamin Yao Kouassi. "Impact of hydrogen potential on anaerobic digestion of organic waste." E3S Web of Conferences 354 (2022): 03005. http://dx.doi.org/10.1051/e3sconf/202235403005.

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The world’s waste deposit has become more important due to the growth of the world economy and demography. Biomethanation is method of choice for the treatment of fermentable fractions of municipal waste. However, low methane yield due to operational issues and process instability prevent this technology from being widely applied. It shows that biogas is made up of approximately 50-70% CH4; 30-50% CO2 from traces of other gases. Solutions for improving CH4 production include controlling anaerobic digestion factors. These factors are essentially: the methanogenic potential, the carbon/nitrogen
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Sun, Ling, Shuo Sun, Yufen Li, et al. "Potential biomarkers predicting risk of pulmonary hypertension in congenital heart disease: the role of homocysteine and hydrogen sulfide." Chinese Medical Journal 127, no. 5 (2014): 893–99. http://dx.doi.org/10.3760/cma.j.issn.0366-6999.20132694.

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Background Pulmonary hypertension (PH) is a common complication of congenital heart disease (CHD). Although risk stratification is vital for prognosis and therapeutic guidance, the need for understanding the role of novel biomarkers cannot be overlooked. The aim of the present study was to investigate the changes of homocysteine and hydrogen sulfide levels and find potential biomarkers for early detection and treatment. Methods Between September 2012 and April 2013, we prospectively collected data on 158 pediatric patients with left to right shunt CHD at our institution. Standard right heart c
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Shrimali, Vinay Shrimali. "REVIEW RESEARCH PAPER: USE OF HYDROGEN FOR PREPARING HIGH PH ALKALINE WATER AND INNOVATIVE TECHNOLOGIES FOR INCREASING WATER PH." Revista o Universo Observável 1, no. 6 (2024): 2–4. https://doi.org/10.5281/zenodo.14010453.

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<em>Hydrogen, as an active element in water treatment, plays a significant role in the preparation of high pH alkaline water. The development of innovative technologies, such as electrolytic methods and hydrogen-rich water systems, provides methods for increasing water pH effectively. This research paper explores the scientific principles behind using hydrogen to create alkaline water, compares traditional and modern technologies, and highlights the potential benefits and applications of alkaline water, including health and industrial uses.</em>
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Viswanathan, V., and Nage Deepashri. "Influence of pH on Hydrogen Absorption in Duplex Stainless Steel." Advanced Materials Research 794 (September 2013): 592–97. http://dx.doi.org/10.4028/www.scientific.net/amr.794.592.

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With rising demands, oil and gas exploration of high-pressure high-temperature (HPHT) wells are increasing worldwide. Due to aggressiveness of HPHT environments, piping and equipments are constructed with high-strength corrosion resistant alloys (CRAs). Duplex stainless steel is one of the candidate alloys that offer high strength along with corrosion resistance. It possesses the advantages of both austenitic and ferritic stainless steels and hence, the name duplex or dual phase stainless steel. In order to control corrosion, cathodic protection is commonly being employed on the structures and
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Zagklis, Dimitris, Marina Papadionysiou, Konstantina Tsigkou, Panagiota Tsafrakidou, Constantina Zafiri, and Michael Kornaros. "Effect of pH on the Economic Potential of Dark Fermentation Products from Used Disposable Nappies and Expired Food Products." Applied Sciences 11, no. 9 (2021): 4099. http://dx.doi.org/10.3390/app11094099.

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Used disposable nappies constitute a waste stream that has no established treatment method. The purpose of this study was the assessment of the dark fermentation of used disposable nappies and expired food products under different pH values. The biodegradable part of the used disposable nappies was recovered and co-fermented with expired food products originating from supermarkets. The recoverable economic potential of the process was examined for different volatile fatty acids exploitation schemes and process pH values. The process pH strongly affected the products, with optimum hydrogen prod
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Soehardjono, Agoes, Faris Rizal Andardi, Wisnumurti, and Ari Wibowo. "Effect of potential of Hydrogen (pH) on compressive strength with variations in soaking concrete." Roads and Bridges – Drogi i Mosty 24, no. 2 (2025): 223–30. https://doi.org/10.7409/rabdim.025.011.

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The pH level plays a crucial role in the properties of concrete, including compressive strength, durability, and resistance to corrosion of reinforcement. The influence of pH still requires in-depth investigation to determine its effect on concrete strength under varying pH levels and immersion durations in seawater. The compressive strength test was carried out on a total of 540 concrete samples. The test specimens used in this study were cylindrical in shape, with a height of 30 cm and a diameter of 15 cm. The target compressive strengths in this research were 25 MPa, 35 MPa, and 45 MPa. The
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Dissertations / Theses on the topic "PH (potential of hydrogen)"

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Ye, Xuemin. "The effect of water pH on swimming performance, blood pH, red cell pH, ion concentrations and catecholamine concentrations in plasma, and gill potential in rainbow trout (Salmo gairdneri)." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26676.

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The effect of transferring fish from water at pH 7.0 to either more acid or more alkaline conditions was to reduce the maximum critical velocity of the fish. In water of pH 4.0, 5.0, and 10.0, the maximum critical velocity was only 54.5%, 66.5%, and 61% respectively of that recorded for fish in the water of pH 7.0. Thus, both acid and alkaline conditions in the water reduce the aerobic swimming capacity of trout. Exposure to acid conditions increased mucus secretion and this was associated with an increase in coughing and breathing frequency in resting fish. Coughing rate increased from 41/hr
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Pinto, Marcelo Mendes. ""Influência do pH de armazenamento no crescimento subcrítico de trincas de porcelanas odontológicas com diferentes microestruturas"." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/23/23140/tde-28082006-200019/.

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O objetivo do trabalho foi determinar o efeito do pH de armazenamento (pH 3,5; 7,0 e 10,0) nos parâmetros de crescimento subcrítico (n e ? f0) de duas porcelanas odontológicas com diferentes microestruturas (com e sem leucita). A hipótese testada foi a de que o pH do meio afeta os parâmetros de crescimento subcrítico dos dois materiais. Duas porcelanas feldspáticas foram avaliadas: 1) Ultropaline Dentina (UD), JenDental/Ucrânia; 2) Veneer Material 7 (VM7), Vita/Alemanha. A porcelana UD é composta de matriz vítrea com dispersão de partículas de segunda fase de leucita, enquanto a porcelana VM7
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Guimarães, João de Jesus. "Comportamento agronômico do lúpulo (Humulus lupulus L.) em cultivo protegido submetido a irrigações com diferentes faixas de pH da água na região de Botucatu-SP /." Botucatu, 2020. http://hdl.handle.net/11449/192238.

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Orientador: Rodrigo Máximo Sánchez-Román<br>Resumo: O cultivo de lúpulo (Humulus Lupulus L) exige um adequado fornecimento de água, principalmente na fase de desenvolvimento, o qual envolve a formação e crescimento dos ramos laterais, florescimento, formação das inflorescências e maturação dos cones. Sabendo da importância do fornecimento de água na fase de desenvolvimento, a irrigação passou a ser utilizada nas áreas de cultivo desde o século XIX. No contexto da irrigação, a qualidade da água é um fator importante e que, quando não se dá a devida atenção, pode causar efeitos deletérios no sis
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Jeřábek, Lukáš. "Analyzátor vodného roztoku." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217742.

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This work deals with issues of detection chlorine, measurement pH, atmospheric pressure and temperature. The general aim is to study of the problem, the choice appropriate sensors and methods for detection, create schematic diagram and implementation of the analyzer. An integral part of wireless communication with the computer, susceptible the storage of date and makes it possible to further evalution.
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Norbert, Waranakulaarachchiralalage D. J. A. "Metal complexes as potential pH sensors." Thesis, Queen's University Belfast, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.336008.

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Nyberg, Lindborg Kristina. "Phagolysosomal pH measurements in alveolar macrophages /." Stockholm, 2000. http://diss.kib.ki.se/2000/91-628-4512-8/.

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Barman, Dipti Narayan. "pH sensitive fluorescent sensors." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4972.

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Thesis (M.S.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on April 3, 2009) Includes bibliographical references.
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Gustavsson, John. "In-situ activated hydrogen evolution from pH-neutral electrolytes." Doctoral thesis, KTH, Tillämpad elektrokemi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-95369.

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The goal of this work was to better understand how molybdate and trivalent cations can be used as additives to pH neutral electrolytes to activate the Hydrogen Evolution Reaction (HER). Special emphasis was laid on the chlorate process and therefore also to some of the other effects that the additives may have in that particular process. Cathode films formed from the molybdate and trivalent cations have been investigated with electrochemical and surface analytical methods such as polarization curves, potential sweep, Electrochemical Impedance Spectroscopy (EIS), current efficiency measurements
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Matocha, Mark Andrew. "Spray carrier stability, plant mobility, and runoff potential of trifloxysulfuron." Thesis, [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1717.

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Koort, Eve. "Uncertainty estimation of potentiometrically measured pH and pK[subscript a] values /." Online version, 2006. http://dspace.utlib.ee/dspace/bitstream/10062/599/5/koorteve.pdf.

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Books on the topic "PH (potential of hydrogen)"

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F, Koch William, and Durst Richard A. 1937-, eds. Standardization of pH measurements. U.S. Dept. of Commerce, National Bureau of Standards, 1988.

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F, Koch William, and Durst Richard A. 1937-, eds. Standardization of pH measurements. U.S. Dept. of Commerce, National Bureau of Standards, 1988.

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Wu, Yung Chi. Standardization of pH measurements. National Bureau of Standards, 1988.

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Office, Minnesota State Energy, and Minnesota. Dept. of Commerce., eds. The hydrogen potential: Hydrogen technology and Minnesota opportunities. Minnesota Dept. of Commerce, 2008.

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McMillan, Gregory K. pH measurement and control. 2nd ed. Instrument Society of America, 1994.

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K, Kaila, and Ransom Bruce R, eds. pH and brain function. Wiley-Liss, 1998.

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Brookins, Douglas G. Eh-PH diagrams for geochemistry. Springer-Verlag, 1988.

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Busenberg, Eurybiades. pH measurement of low-conductivity waters. U.S. Geological Survey, 1987.

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Busenberg, Eurybiades. pH measurement of low-conductivity waters. U.S. Geological Survey, 1987.

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Degner, Ralf. PH-Messung: Der Leitfaden für Praktiker. Wiley-VCH, 2009.

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Book chapters on the topic "PH (potential of hydrogen)"

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Kouser, Rabia, Asif Husain, Mohd Irfan, Shahidul Islam Bhat, and Abdul Wahied Khan. "Ph-Responsive Nanocomposite Hydrogels and Their Potential Scope in the Biomedical Field." In Biocomposites. Apple Academic Press, 2023. http://dx.doi.org/10.1201/9781003408512-7.

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Bolar, Saikat, Subhasis Shit, Naresh Chandra Murmu, and Tapas Kuila. "3D Hierarchical V and N-codoped MoS2/rGO Composite as a Potential Electrode Material Towards Hydrogen Evolution Reaction in Acidic and Alkaline pH." In Tailored Functional Materials. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-2572-6_12.

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Wranglén, Gösta. "Potential-pH-Diagramme." In WFT Werkstoff-Forschung und -Technik. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82360-2_5.

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Wranglén, Gösta. "Potential-pH diagrams." In An Introduction to Corrosion and Protection of Metals. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-4850-1_4.

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Broom, Darren P. "Potential Storage Materials." In Hydrogen Storage Materials. Springer London, 2011. http://dx.doi.org/10.1007/978-0-85729-221-6_2.

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Spitzer, Kenneth W., and Richard D. Vaughan-Jones. "Regulation of Intracellular pH in Mammalian Cells." In The Sodium-Hydrogen Exchanger. Springer US, 2003. http://dx.doi.org/10.1007/978-1-4615-0427-6_1.

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Zoecklein, Bruce W., Kenneth C. Fugelsang, Barry H. Gump, and Fred S. Nury. "Hydrogen Ion (pH) and Fixed Acids." In Wine Analysis and Production. Springer US, 1999. http://dx.doi.org/10.1007/978-1-4757-6967-8_4.

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Zoecklein, Bruce W., Kenneth C. Fugelsang, Barry H. Gump, and Fred S. Nury. "Hydrogen Ion (pH) and Fixed Acids." In Wine Analysis and Production. Springer US, 1995. http://dx.doi.org/10.1007/978-1-4757-6978-4_4.

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Zoecklein, Bruce W., Kenneth C. Fugelsang, Barry H. Gump, and Fred S. Nury. "Hydrogen Ion (pH) and Fixed Acids." In Production Wine Analysis. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4615-8146-8_4.

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Nitsch, J., and C. Voigt. "Hydrogen’s Potential." In Hydrogen as an Energy Carrier. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-61561-0_11.

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Conference papers on the topic "PH (potential of hydrogen)"

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Bavarian, Behzad, Lisa Reiner, Pablo Santos, Guillermo Herrera, and Octavio Cervantes. "Hydrogen Embrittlement of Prestressed Concrete Cylinder Pipes." In CORROSION 2005. NACE International, 2005. https://doi.org/10.5006/c2005-05146.

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Abstract Extensive research was conducted on prestressed ASTM A648 Class II steel wire to identify the fracture morphology. Hydrogen embrittlement results when this prestressed steel wire, embedded in concrete cylinder pipe, is cathodically overprotected. From this study, a correlation was established between the environmental variables (pH, cathodic potential) and the type of failure. These experiments demonstrated that hydrogen embrittlement occurred in both environments (pH 2 and pH 12) and affected the fracture behavior of the wires. The wires subjected to cathodic potentials above –1.2 VS
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Li, R., and M. G. S. Ferreira. "Mechanism of Hydrogen Generation in the Stress Corrosion Crack." In CORROSION 1995. NACE International, 1995. https://doi.org/10.5006/c1995-95172.

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Abstract Based on the mass transport in the stress corrosion crack, a mathematical expression of potential distribution along the stress corrosion crack is deduced. From this mathematical expression and the E-pH diagram for H2O, a new mechanism for hydrogen generation in the stress corrosion crack i.e. H+ partial potential drop mechanism, is proposed. Following this mechanism, the relationship between hydrogen generation and affecting factors, such as current density of anodic dissolution inside the crack, pH value, partial resistivity of H+ ion, dimension of the crack and potential of the met
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Johnson, J. T., C. L. Durr, J. A. Beavers, and B. S. Delanty. "Effects of O2 and CO2 on Near-Neutral-pH Stress Corrosion Crack Propagation." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00356.

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Abstract The objective of the research described in this paper was to evaluate the influence of the composition of the sparging gas on the electrochemical corrosion kinetics, hydrogen permeation, and crack growth behavior of a line pipe steel in a simulated near-neutral-pH cracking electrolyte. A series of potentiodynamic polarization experiments, Devanathan/Stachurski type hydrogen permeation experiments, and cyclic loading tests were performed with varying levels of O2 and CO2. Tests revealed that increasing the level of CO2 increased the corrosion rate at the free corrosion potential, incre
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Silverman, David C., and Ari L. Silverman. "Potential-pH (Pourbaix) Diagrams as Aids for Screening Corrosion Inhibitors and Sequestering Agents." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07616.

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Abstract Potential-pH (Pourbaix) diagrams are used as road maps for aiding in predicting the most stable states of a metal, its corrosion products, and its associated ions in an aqueous solution. It is presented on plot of equilibrium potential vs. hydrogen ion activity. Organic ions including those of biological importance such as amino acids can affect the most thermodynamically stable states associated with the metal. This paper explores how potential-pH diagrams might be used as aids for screening such organic corrosion inhibitors and sequestering agents. The diagrams were generated using
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Ohnaka, N., and Y. Furutani. "Electrochemical Investigation of Hydrogen Absorption Mechanism in Type 304 Stainless Steel under Simulated Crevice-Like Water Chemistry Conditions." In CORROSION 1987. NACE International, 1987. https://doi.org/10.5006/c1987-87261.

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Abstract An investigation of the permeation rate of electrolytic hydrogen through a Type 304 stainless steel membrane using an electrochemical technique is described. The variation of the permeation rate with cathodic overpotential has been determined under simulated crevice- like water chemistry condition, or in acidic (0.005 M H2SO4 + 0.05 M Na2SO4), neutral (0.05 M Na2SO4) and alkaline (0.01 N NaOH + 0.05 M Na2SO4) solutions with deaeration. The electrochemical relationships between electrochemical parameters like cathodic overpotential, cathodic current and permeation current, indicate tha
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Martin, T. G., and G. Wilken. "Hydrogen Induced Cracking Failure of ASTM a 516 Grade 70 Steel in near Neutral to High pH Solution." In CORROSION 2003. NACE International, 2003. https://doi.org/10.5006/c2003-03533.

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Abstract The hydrogen uptake behavior of ASTM A 516 grade 70/grade 60 (UNS K02700 I UNS K02100) steels was studied in near neutral and high pH solutions representing aqueous alkanolamine/sulfolane* solutions used in gas sweetening operations (removal of hydrogen sulfide and carbon dioxide). Since known test techniques for hydrogen charging activities did not reveal sufficient sensitivity for hydrogen uptake a unique modification of fracture mechanics J-integral testing methodology was employed. The tests were complemented with slow-strain-rate-testing. In contact with high pH solutions the ste
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Enos, D. G., A. J. Williams, and J. R. Scully. "Understanding the Long Term Effects of Cathodic Protection on Pre-Stressed Concrete Structures: Hydrogen Embrittlement of Pre-Stressing Steel." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96307.

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Abstract This paper addresses the issue of safe cathodic protection limits for pre-stressing steel in concrete given the concern of hydrogen embrittlement (HE). The local environment at the steel/concrete interface was found to vary as a function of vertical position within a laboratory scale marine bridge piling. Embedded pH electrodes indicated that the pH within a steel crevice embedded within a concrete piling decreased from 12.5 to 7.7 in the atmospheric zone 30.5 cm above the waterline. Hydrogen permeation was detected using embedded sensors at applied potentials (Eapp) as positive as -6
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Hu, R., M. Habashi та J. Galland. "Hydrogen Embrittlement on α-Iron in High Alkaline Environment". У CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94250.

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Abstract The partial pressure of hydrogen in concrete’s pore is very low. This hydrogen is due to the chemical reaction between the silica fumes and the alkaline solutions filling the concrete’s pore. Silica fumes are added in the concrete to increase its compression resistance. According that the hydrogen pressure is low, the risk of hydrogen embrittlement is also low. However, for constructional works destined to endure more than 50 years, is this risk negligible? To answer this question, we have studied the hydrogen embrittlement on α-iron in alkaline solutions, in the pH range 9.5 to 13.3,
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King, Fraser, Tom Jack, Weixing Chen, Martyn Wilmott, Raymond R. Fessler, and Kevin Krist. "Mechanistic Studies of Initiation and Early Stage Crack Growth for Near-Neutral pH SCC on Pipelines." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00361.

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Abstract Evidence from laboratory experiments and field observations on near-neutral pH SCC of pipeline steel is reviewed. Emphasis is placed on the effects of environmental parameters, such as potential, pH and HCO3−/CO32− concentration, on the SCC mechanism. The results are interpreted in terms of either a dissolution-based or hydrogen-based mechanism. The weight of evidence supports a hydrogen-based mechanism for near-neutral pH SCC. Dissolution may play a role in SCC initiation. Enhanced rates of hydrogen evolution and permeation appear possible under near-neutral pH SCC conditions, whilst
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Xie, Jeffrey, Chris Foy, Robert Worthingham, and Mark Piazza. "Environmental Effects on the Susceptibility and Crack Growth of near Neutral PH Stress Corrosion Cracking." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10297.

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Abstract The environmental effects on the susceptibility and crack growth of near-neutral pH stress corrosion cracking (SCC) were characterized using mechanical testing, hydrogen permeation and potential drop measurements. The investigated environmental parameters were dissolved CO2, HCO3−, pH, sulfate and chloride, sulfide and organics (9,10-anthraquinone-2,6-disulfonate (AQDS), Laurentian humic acid (LHA) and Laurentian fulvic acid (LFA)). Sufficient hydrogen concentration was critical for the susceptibility of near-neutral pH SCC. Hydrogen concentration was directly proportional to the conc
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Reports on the topic "PH (potential of hydrogen)"

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Parkins. L51806 Effects of Hydrogen on Low-pH Stress Corrosion Crack Growth. Pipeline Research Council International, Inc. (PRCI), 1998. http://dx.doi.org/10.55274/r0010142.

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There is circumstantial evidence of hydrogen playing a role in, so called, low pH SCC of pipeline steel, but direct evidence for such is lacking. Resolution of this situation is of practical importance because of its implications for modeling. Thus, existing models for high pH SCC of pipelines are based upon a dissolution controlled mechanism of crack growth, but such models will not be applicable to low pH SCC if hydrogen is involved with the latter. Measurements have been made of the permeation of hydrogen into X52 and X60 pipeline steels at various potetials while exposed to a simulated gro
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Chawla, Sandeep, John Beavers, and Narasi Sridhar. PR-186-163603-R01 Polarization Criteria for Mitigating Corrosion on High-pH SCC Susceptible Pipelines. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011539.

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For pipelines that are potentially conducive to high-pH stress corrosion cracking (SCC), the cathodic protection (CP) criterion most typically used is based on a polarized potential of -850 mV versus the Saturated Cu/CuSO4 electrode (CSE). Since this criterion is difficult to meet on pipelines that have deteriorated coatings, alternate CP criteria need to be established. This research was directed at assessing the feasibility of a polarization-shift based CP criterion for mitigating corrosion on high-pH SCC in pipelines, and providing a technical basis for its further evaluation and adoption i
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King, Jack, and Yang. L51905 Assessment of the Aggressiveness of Various Types of Soils for Low-pH SCC. Pipeline Research Council International, Inc. (PRCI), 2003. http://dx.doi.org/10.55274/r0010942.

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Empirical evidence from field locations at which near-neutral pH SC has been observed suggests that some types of site and/or soil are more aggressive than others. Soil and site characteristics are the basis of "soils models" which are used to rank areas on a pipeline system according to the probability of SCC in risk assessment models. In this study, solutions extracted from soils ranked according to a commonly used soils model were used to assess their aggressiveness to near-neutral pH SCC in slow strain rate and hydrogen permeation tests. The laboratory testing was supplemented by field mea
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Lahav, Ori, Albert Heber, and David Broday. Elimination of emissions of ammonia and hydrogen sulfide from confined animal and feeding operations (CAFO) using an adsorption/liquid-redox process with biological regeneration. United States Department of Agriculture, 2008. http://dx.doi.org/10.32747/2008.7695589.bard.

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The project was originally aimed at investigating and developing new efficient methods for cost effective removal of ammonia (NH₃) and hydrogen sulfide (H₂S) from Concentrated Animal Feeding Operations (CAFO), in particular broiler and laying houses (NH₃) and hog houses (H₂S). In both cases, the principal idea was to design and operate a dedicated air collection system that would be used for the treatment of the gases, and that would work independently from the general ventilation system. The advantages envisaged: (1) if collected at a point close to the source of generation, pollutants would
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Gustafsson, Marcus, and Stephanie Cordova. Värdeskapande av koldioxid från biogasproduktion. Linköping University Electronic Press, 2023. http://dx.doi.org/10.3384/9789180753838.

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arbon dioxide (CO₂) has a negative impact on the climate, but it also has several practical areas of use. Many industrial processes emit CO₂ in high concentrations, which could be captured to mitigate emissions while also creating valuable products. One example of such a process is biogas upgrading – a process separating renewable gases, where methane is taken care of for use as vehicle fuel or industrial energy carrier, while CO₂ is released into the atmosphere. The aim of this project has been to chart alternatives and technologies for taking care of green CO₂ from biogas upgrading, so-calle
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Beauregard, Yannick. PR261-193604-R01 Optimizing Stress Corrosion Cracking Management - Field and Economic Study. Pipeline Research Council International, Inc. (PRCI), 2021. http://dx.doi.org/10.55274/r0012179.

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This work aims to improve pipeline segment prioritization for stress corrosion cracking (SCC) excavations. Specifically, it is aimed at optimizing the technical accuracy and the cost of the Association for Materials Protection and Performance (AMPP, formerly NACE) Stress Corrosion Cracking Direct Assessment (SP0204-2015) process by: - evaluating the SCC susceptibility criteria of soil property parameters that were proposed in the first phase of the project (pH, resistivity, sulfide concentration, soil carbon dioxide (CO2) concentration, carbonate concentration, soil oxygen (O2) concentration,
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Ruth, Mark. Updates to Hydrogen Market Potential. Office of Scientific and Technical Information (OSTI), 2024. http://dx.doi.org/10.2172/2372878.

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Fessler. L52040 The Mechanisms of High-pH and Near-Neutral pH SCC-Unresolved Issues and Experimental Techniques. Pipeline Research Council International, Inc. (PRCI), 2005. http://dx.doi.org/10.55274/r0011285.

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Key unresolved issues related to the mechanisms of high-pH and near-neutral-pH stress-corrosion cracking (SCC) were identified based upon a review of the technical literature. It was determined that the mechanism of high-pH SCC is well understood, the key outstanding issue being related to the factors that affect the micro-creep properties of a steel, which seem to be the primary determinant of its susceptibility to SCC. The mechanism of near-neutral-pH SCC is not so well understood. Both dissolution and hydrogen appear to be involved, but their relative roles remain to be determined. Some exp
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Brasche, Carmen, Mary Drewnoski, and Stephanie L. Hansen. Effects of Dietary Sulfur Source on Rumen pH and Hydrogen Sulfide Gas Concentration. Iowa State University, 2012. http://dx.doi.org/10.31274/ans_air-180814-141.

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Milbrandt, A., and M. Mann. Hydrogen Resource Assessment: Hydrogen Potential from Coal, Natural Gas, Nuclear, and Hydro Power. Office of Scientific and Technical Information (OSTI), 2009. http://dx.doi.org/10.2172/950142.

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