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Добірка наукової літератури з теми "Oxamic acid"

Автор: Grafiati

Опубліковано: 19 жовтня 2024

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Статті в журналах з теми "Oxamic acid"

Yang, L., L. Liu, B. A. Olsen, and M. A. Nussbaum. "The determination of oxalic acid, oxamic acid, and oxamide in a drug substance by ion-exclusion chromatography." Journal of Pharmaceutical and Biomedical Analysis 22, no. 3 (April 2000): 487–93. http://dx.doi.org/10.1016/s0731-7085(00)00230-2.

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Nuñez, L., L. Barral, and G. Pilcher. "Enthalpies of combustion of oxamic acid, oxamide, and dithiooxamide." Journal of Chemical Thermodynamics 20, no. 10 (October 1988): 1211–16. http://dx.doi.org/10.1016/0021-9614(88)90105-x.

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Veltsistas, P. G., C. D. Papadimitriou, A. M. Z. Slawin, and J. D. Woollins. "Synthesis, Characterization and X-Ray Structural Determination of the Nine-coordinate Tris-aqua Tetra-oxamato Neodymium(III) Complex [Nd(Hoxm)3(H2oxm)·2.5H2O]n." Journal of Chemical Research 23, no. 3 (March 1999): 222–23. http://dx.doi.org/10.1177/174751989902300326.

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The reaction of NdIII with oxamic acid yields [Nd(Hoxm)3(H2oxm)·2.5H2O] n 1 (H2oxm = oxamic acid) which contains nine-coordinate Nd centres linked into chains via four-coordinate Hoxm- ligands; the chains are connected via an array of H-bonds.

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Lin, Shu-Kun. "N-(3,4-Dichlorophenyl)methyl Oxamic Acid." Molecules 2, no. 12 (April 15, 1997): M4. http://dx.doi.org/10.3390/m4.

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PETYUNIN, G. P., A. V. CHUBENKO, and KH M. AL'RAKHAVI. "ChemInform Abstract: Reaction of 2-Aminopyridine with Oxalic and Oxamic Acid Esters." ChemInform 27, no. 47 (August 4, 2010): no. http://dx.doi.org/10.1002/chin.199647149.

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Orge, C. A., J. L. Faria, and M. F. R. Pereira. "Removal of oxalic acid, oxamic acid and aniline by a combined photolysis and ozonation process." Environmental Technology 36, no. 9 (November 13, 2014): 1075–83. http://dx.doi.org/10.1080/09593330.2014.974682.

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Zarzyka, Iwona. "Oligomers with structural elements of imidazolidinetrione obtained from oxamic acid and oxamide: polyurethane foams modified by structural elements of imidazolidinetrione." Journal of Polymer Engineering 35, no. 1 (January 1, 2015): 1–10. http://dx.doi.org/10.1515/polyeng-2013-0318.

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Abstract Hydroxyalkyl derivatives containing oxamidoester and oxamide fragments have been separately obtained using oxamic acid, oxamide and alkylene carbonates. It has been proven that the presence of oxamidoester and oxamide structural fragments in oligomer structures is responsible for the thermal stability of these products. Rigid, thermally stable polyurethane foams were obtained with the use of oligomers with oxamidoestercarbamidoimide, carbamide, oxamidoester and oxamide groups as polyols components. The properties of these foamed materials were compared with each other and with the properties of reference foams. It was found that the polyurethane foams characterized by the best properties were obtained from hydroxypropyl derivatives of oxamide.

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Lan, Yixiang, Chao Wang, Fan Yuan, Tadesse Haile Fereja, Baohua Lou, Shuang Han, Jianping Li, and Guobao Xu. "Electrochemiluminescence of 3,4,9,10-perylenetetracarboxylic acid/oxamic hydrazide and its application in the detection of tannic acid." Analyst 144, no. 15 (2019): 4493–98. http://dx.doi.org/10.1039/c9an00615j.

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DELGADO, G. E., L. M. BELANDRIA, M. GUILLEN, A. J. MORA, and L. E. SEIJAS. "STRUCTURAL CHARACTERIZATION OF 2-AMINO-2-OXOACETIC ACID BY X-RAY POWDER DIFFRACTION AND QUANTUM CHEMISTRY." Periódico Tchê Química 16, no. 33 (March 20, 2019): 516–23. http://dx.doi.org/10.52571/ptq.v16.n33.2019.531_periodico33_pgs_516_523.pdf.

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2-amino-2-oxoacetic acid, carbamoyl formic acid, or oxamic acid is an active pharmaceutical ingredient (API) of great importance mainly because is an inhibitor of lactic dehydrogenase (LDH). It acts as an inhibitor to the metabolic pathways of the tumor cells and exhibited significant anticancer activity against nasopharyngeal carcinoma (NPC) cells in vitro and can be considered as a potential drug for the treatment of type 2 diabetes. Also, this compound could be used as a building block in the design of supramolecular architectures based on hydrogen bonds through the complimentary hydrogen-bond functionalities of the carbonyl and amide functional groups present. Single-crystal X-ray diffraction is the most powerful technique for crystal structure determination of small molecules. However, for several materials, including oxamic acid, it could be complicated to grow single crystals of suitable size and quality that make them appropriated to structure analysis. For this reason, the structural study was conducted with powder X-ray diffraction which is a process significantly more challenging than structure determination from single-crystal data. Oxamic acid has been characterized by FT-IR and NMR spectroscopic techniques, thermal TGA-DSC analysis, semi-empirical PM7 calculations, and X-ray powder diffraction. The title compound crystallizes in the monoclinic system with space group Cc, Z=4, and unit cell parameters a= 9.4994(4) Å, b= 5.4380(2) Å, c= 6.8636(3) Å, b= 107.149(2)°, V= 338.79(2) Å3. The molecule has a trans conformation. The molecular structure and crystal packing are stabilized mainly by intra- and intermolecular O--H···O and N--H···O hydrogen bonds. The structural characterization of this type of API compound is important to understand its mechanisms of action due to its considerable biological effects. In particular, for oxamic acid, this structural study would allow subsequent examination of its medicinal properties as an antitumor and antidiabetic agent.

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Volkova, Yulia A., Elena I. Chernoburova, Albina S. Petrova, Alexander A. Shtil, and Igor V. Zavarzin. "Reactions of hydrazones derived from oxamic acid thiohydrazides." Phosphorus, Sulfur, and Silicon and the Related Elements 192, no. 2 (October 21, 2016): 237–40. http://dx.doi.org/10.1080/10426507.2016.1250759.

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Дисертації з теми "Oxamic acid"

Canevari, Thiago da Cruz 1980. "Ftalocianina de cobalto preparada in situ sobre o oxido misto SiO2/SnO2 obtido pelo processo sol-gel. Aplicação na oxidação eletrocatalitica do acido oxalico e do nitrito." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/249670.

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Orientador: Yoshitaka Gushikem
Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica
Made available in DSpace on 2018-08-11T20:31:08Z (GMT). No. of bitstreams: 1 Canevari_ThiagodaCruz_M.pdf: 626518 bytes, checksum: a33704384d49a883c4ca32c883b2ad0d (MD5) Previous issue date: 2008
Resumo: Este trabalho descreve a síntese do óxido misto SiO2/SnO2 nas composições 3%, 8,6% e 12% (% em massa de SnO2) obtido pelo processo sol-gel. As informações sobre a formação do SiO2/SnO2, foram obtidas utilizando as técnicas disponíveis para tal finalidade como área superficial pela técnica de BET, espectroscopia de fluorescência de raios X e difração em pó de raios X. O óxido misto SiO2/SnO2 foi utilizado como substrato para síntese in situ da ftalocianina de cobalto devido ser mecanicamente resistente, possuir alta área superficial e apresentar uma condutividade elétrica alta. A formação da ftalocianina de cobalto no material, SiO2/SnO2/CoPc, foi confirmada utilizando as técnicas de espectroscopia UV-VIS, espectroscopia IV e espectroscopia de fotoelétrons excitados por de raios X (XPS). Sendo assim, o material SiO2/SnO2/CoPc, foi utilizado na construção de eletrodos quimicamente modificados, no qual um eletrodo de pasta de carbono foi preparado para estudar a eletrooxidação do ácido oxálico e um eletrodo de disco rígido prensado foi preparado para estudar a eletrooxidação dos íons nitrito. Os estudos eletroquímicos foram realizados em solução aquosa de KCl 1 mol L utilizando as técnicas de voltametria cíclica, voltametria de pulso diferencial e cronoamperometria
Abstract: This work describes the synthesis on SiO2/SnO2 mixed oxide at compositions 3%, 8,6% and 12% (% in weight of SnO2) obtained sol-gel process. The information above the formation of SiO2/SnO2 were obtained use the available techniques for such objective like area superficial BET technique, ray X fluorescence spectroscopic and ray X diffraction. The SiO2/SnO2 mixed oxide was use like matrix for in situ synthesis cobalt phthalocyanine due be resistant mechanically, hold high superficial area and present high electric conductive. The formation of cobalt phthalocyanine on matrix, SiO2/SnO2/CoPc, was confirm used the techniques UV-Vis spectroscopic, IV spectroscopic and ray X spectroscopic photoelectron excited (XPS). Like this, the material SiO2/SnO2/CoPc was use for construction modified chemically electrodes, be the carbon paste electrode prepared for study the oxalic acid electooxidation and the rigid disc press electrode prepared for study the nitrite ions electooxidation. The electrochemical study were carry out in 1mol L KCl solution use the techniques cyclic voltammetric, differential pulse voltammetric and chronoamperometric
Mestrado
Quimica Inorganica
Mestre em Química

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Jaussaud, Quentin. "Génération in situ d’isocyanates par décarboxylation d’acides oxamiques pour l’élaboration de matériaux polyuréthanes." Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0139.

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Ces travaux de thèse portent sur la synthèse de polyuréthanes par génération in situ d’isocyanates, à travers différentes voies de moindre toxicité que la voie classique faisant appel à l’utilisation directe d’isocyanates. Dans un premier temps, la décarboxylation oxydante des acides oxamiques conduisant à la formation d’isocyanates a été réalisée par activation thermique grâce à l’utilisation d’un iodure hypervalent, jouant le rôle d’oxydant. Une étude cinétique sur des réactions modèles en présence d’alcool, associé à une modélisation numérique, ont notamment mis en évidence un effet catalytique de l’acide acétique, sous-produit de la réaction, sur la formation de liaisons uréthane. La formation de CO2 généré par cette réaction menant à la formation d’isocyanates, a ensuite été exploitée, pour la synthèse de mousses polyuréthanes réticulées. Les effets de différents paramètres, tels la nature des monomères ou la température de réaction, sur la morphologie et les propriétés des mousses obtenues ont ensuite été étudiés. Cette réaction d’activation des acides oxamiques a ensuite été réalisée par irradiation lumineuse en présence d’un photocatalyseur, permettant d’élaborer des films polyuréthanes. La modification des composés du mélange réactionnel a permis de développer des formulations homogènes, notamment en changeant la nature de l’iodure hypervalent utilisé. Enfin, la synthèse d’uréthanes et de polyuréthanes à partir de 1,4,2-dioxazol-5-ones a été explorée. Après une optimisation des conditions catalytiques permettant la génération d’isocyanates par ouverture de ces hétérocycles, le CO2 aussi formé a été exploité pour la production de mousses polyuréthanes
This PhD work focus on the synthesis of polyurethanes through the in situ generation of isocyanates, using pathways with lower toxicity compared to the classical approach involving the direct use of isocyanates. The oxidative decarboxylation of oxamic acids leading to the formation of isocyanates was, first, carried out by thermal activation using a hypervalent iodine as an oxidant. A kinetic study on model reactions in the presence of alcohol, combined with computational modeling, notably revealed a catalytic effect of acetic acid, a by-product of the reaction, on the formation of urethane bonds. The CO2 generated by this reaction, leading to the formation of isocyanates, was then exploited for the synthesis of cross-linked polyurethane foams. The effects of various parameters, such as the nature of the monomers or the reaction temperature, on the morphology and properties of the obtained foams were thereafter studied. This activation reaction of oxamic acids was then carried out by light irradiation in the presence of a photocatalyst, allowing the production of polyurethane films. Modifying the components of the reaction mixture enabled the development of homogeneous formulations, particularly by changing the nature of the hypervalent iodine used. Finally, the synthesis of urethanes and polyurethanes from 1,4,2-dioxazol-5-ones was explored. After optimizing the catalytic conditions for generating isocyanates through the opening of these heterocycles, the generated CO2 was exploited for the production of polyurethane foams

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Lee, Sung Oh School of Chemical Engineering &amp Industrial Chemistry UNSW. "Dissolution of iron oxides by oxalic acid." Awarded by:University of New South Wales. School of Chemical Engineering & Industrial Chemistry, 2005. http://handle.unsw.edu.au/1959.4/23924.

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The iron content of industrial minerals can be reduced by physical and chemical processing. Chemical processing is very efficient to achieve a high degree of iron removal at minimum operating cost. Both inorganic acids and organic acids have been used for clay refining. However, due to environmental pollution and contamination of products with the SO42- and Cl-, inorganic acids should be avoided as much as possible. This research investigated the use of oxalic acid to dissolve iron oxides and the dissolution characteristics of natural iron oxides. The dissolution of iron oxides in oxalic acid was found to be very slow at temperatures ranging from 25??? to 60???, but increased rapidly at a temperature above 90oC with increasing oxalic acid concentration, whereas the pH caused the reaction rate to decrease at pH>2.5 and improved the rate from pH 1 to pH 2.5. The iron oxides such as goethite (??-FeOOH), lepidocrocite (??-FeOOH) and iron hydroxide (Fe(OH)3) can be dissolved faster at the presence of magnetite which exhibits an induction period at the initial stage and showed the bell-shaped curves for the dissolution. In titration tests, however, the increase of temperature causes an increase in solubility of the oxalate complexes, resulting in an increased stability of ionized species in solution. During the addition of NaOH, NaHC2O4???H2O was precipitated without forming Na2C2O4???H2O, but it was re-dissolved at pH>4.0. On the other hand with NH4OH, NH4HC2O4???H2O and (NH4) 2C2O4???H2O co-precipitated at pH 0.93, but also re-dissolved at over pH 2.03. The reaction temperature was found not to affect the removal of iron from the ferric oxalate complex solution using lime. Iron is removed as iron hydroxide and calcium oxalate is then precipitated during the iron removal step. The formation of Fe(OH)3 in the solution was affected by the dissociation of Ca(OH)2. The thermodynamics of sodium, ammonium and iron oxalate complexes were investigated and the standard free energy, ??Go was calculated using thermodynamic data and solubility products. The dissolution of pure hematite by oxalate was found to follow a shrinking core model of which the kinetic step of the reaction is the controlled mechanism.

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Bottrill, Stephen. "Comparative studies of oxalyl-CoA decarboxylase produced by soil and ruminal bacteria." Title page, contents and abstract only, 1999. http://web4.library.adelaide.edu.au/theses/09ANM/09anmb751.pdf.

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Bibliography: leaves 139-167 The aim of this project was to identify an enzyme responsible for the metabolism of oxalate which would be suitable for degrading oxalate in the rumen, and clone and characterise that gene.

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McMullan, E. A. "The electrochemical reduction of carbon dioxide, glyoxylic acid and oxalic acid." Thesis, University of Ulster, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356452.

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Tokimatsu, Toshiaki. "Biochemical Roles of Oxalic Acid in Wood Decay Model Systems and Characteristics of a New Oxalic Acid Producing Enzyme Glyoxylate Dehydrogenase." Kyoto University, 1999. http://hdl.handle.net/2433/182430.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(農学)
甲第7591号
農博第1030号
新制||農||773(附属図書館)
学位論文||H11||N3226(農学部図書室)
UT51-99-D208
京都大学大学院農学研究科林産工学専攻
(主査)教授島田幹夫, 教授桒原正章, 教授中坪文明
学位規則第4条第1項該当

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Ketusky, Edward. "Remediation of spent oxalic acid nuclear decontamination solutions using ozone." Thesis, Lancaster University, 2018. http://eprints.lancs.ac.uk/123625/.

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The Savannah River Site (SRS) has forty-three remaining very large underground tanks containing significant quantities of nuclear waste generated primarily from cold-war radiochemical separations. All of the tanks eventually must be closed. As part of decommissioning/closing the nuclear waste tanks, even residual quantities of the waste must be removed. Although most sludge can be removed mechanically, chemically cleaning (i.e. decontamination) with oxalic acid is used to aid in the removal of residual quantities. Although oxalic acid works for cleaning the tanks, its downstream impacts are considered detrimental. To better understand and quantify the impacts, detailed models were developed to account for different potential processing strategies for handling the spent oxalic acid nuclear decontamination slurries. Although the results vary, the models show that regardless of the oxalate handling strategies: 1) significant washing to decrease sodium concentration/solids concentration in vitrification feed will be required, and 2) the creation of copious future additions of feed for salt processing will be unavoidable. Using a Theory of Inventive Problem Solving (TRIZ) approach, a modified form of the Chemical Oxidation Reduction Decontamination (CORD) ultraviolet (UV) light was identified as being used with an analogous but already resolved problem that could be adapted to SRS HLW tank cleaning. A novel preliminary process called Enhanced Chemical Cleaning (ECC) was envisioned. As part of maturing the technology, the literature review identified three possible oxalate decomposition mechanisms associated with ECC. They are: 1)A heterogeneous non-Advanced Oxidation Process (AOP) mechanism where the target organic adsorbs onto the surface of a solid, often particulate, metal oxide at a so-called active site, followed by ozone attack on the sorbed organic; 2)A homogeneous non-AOP mechanism that operates under low pH acidic conditions and which involves complexation of the catalysing metal ion with the oxalate followed by ozone attack on the complex; and, 3)A homogeneous AOP mechanism that operates at a high basic pH and which involves metal ions catalysing the formation of hydroxyl radicals from ozone, with the said hydroxyl radicals then driving the oxalate decomposition. Process testing was conducted using slurries made from simulants designed to be chemically similar to real High-Level Waste (HLW) sludge types. Testing using slurries made from real HLW sludge was also performed, but because of safety limitations associated with handling HLW, only a much smaller scale test apparatus could be used. With the much smaller scale test apparatus, the purpose of the real HLW based testing was confirmatory. Each of the simulant decomposition test slurry was created using an Fe-rich or an Al/Mn-rich sludge simulant using either 1 wt% or 2.5 wt% oxalic acid. The real HLW based slurries were formed using 2 wt% oxalic acid. As part of the main postulate of this effort, both the simulant decomposition test slurries and real HLW based slurries demonstrate that UV light increased the decomposition rate. Even without UV, by adding only ozone, the oxalate decomposition was completed on an industrially relevant timescale. Also using simulant based testing, the overall oxalate decomposition exhibited four distinct stages related to the metal catalysts: Stage One – At short ozonation times, ozone decomposes Fe oxalates and solubilise Fe from ozone action on the metal oxide constituents of the sludge. Stage Two – At intermediate ozonation times, as a result of the loss of the solution capacity to complex (and so solubilise) Fe, Mn, and Ni ions due to O3 driven oxalate decomposition, as well as the pH increase that accompanies that decomposition, Fe begins to precipitate. Oxalate decomposition is still primarily catalysed by Fe ions during this stage. Stage Three – At intermediate ozonation times, Fe precipitation is near complete, and oxalate decomposition is now driven by ozone and Mn catalysis – Mn playing a major role in determining the final time to process endpoint of 1.1 × 10-3 M oxalate in solution. Stage Four – At long ozonation times, the process endpoint with Mn precipitation now near completion with Ni being the dominant metal ion in solution. Constructed plots compare the pH and remaining oxalate concentration, both as a function of time, suggesting some relationship. Regression analysis of the negative log of the oxalate concentration shows the R2 values are all greater than 0.80, confirming correlation. Thus, pH can be used as a field measure for confirming when oxalate decomposition is complete. As a principal hypothesis of this effort, using simulant based testing, both the scavenging effects of “all-ready present” nitrite (a soluble component of the sludge simulants) and oxalate mineralisation-derived carbonate are advantageously used in lieu of introducing hydroxyl radical probe compounds to the process. Specifically, differing nitrite concentrations between slurries showing no impact on the decomposition rates, and the build-up of carbonate not inhibiting the decomposition process strongly suggest that the decomposition is not the result of radicals. Instead, the oxalate decomposition is likely the result of a direct reaction of ozone with metal complexed oxalate (i.e. mechanism 2 discussed above).

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Watanabe, Tomoki. "Mechanisms for oxalic acid decomposition and transport in wood-rotting fungi." Kyoto University, 2008. http://hdl.handle.net/2433/136618.

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Kyoto University (京都大学)
0048
新制・課程博士
博士(農学)
甲第13891号
農博第1706号
新制||農||955(附属図書館)
学位論文||H20||N4358(農学部図書室)
UT51-2008-C807
京都大学大学院農学研究科応用生命科学専攻
(主査)教授梅澤俊明, 教授矢﨑一史, 教授江﨑信芳
学位規則第4条第1項該当

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Lowalekar, Viral Pradeep. "Oxalic Acid Based Chemical Systems for Electrochemical Mechanical Planarization of Copper." Diss., The University of Arizona, 2006. http://hdl.handle.net/10150/193886.

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In an ECMP process, a wafer is anodically baised during polishing. The electrical potential is the driving force to oxidize copper metal to ions. Copper ions then react with chemistry in the electrolyte to go in solution or form a passivation layer on the surface. The passivation layer is removed by a very low downforce (0.5-1 psi), causing copper to electrochemically dissolve in solution. Passive film formation during copper ECMP is key to the success of this process, since passivation reduces dissolution in the recessed areas, while elevations on the copper surface in direct contact with the ECMP pad are electrochemically planarized. If no passive film forms, then copper removal will be conformal from the elevated and recessed areas, and planarity will be lost. Chemical formulations for the electrochemical mechanical planarization (ECMP) of copper must contain constituents that are stable at anodic potentials. A key component of the formulation is a corrosion inhibitor, which is required to protect low lying areas while higher areas are selectively removed. Organic compounds, which adsorb on copper at low overpotentials and form a film by oxidation at higher overpotentials, may be particularly useful for ECMP. The main goal of the research reported in this dissertation is to understand and develop oxalic acid-based chemical systems suitable for ECMP of copper through electrochemical and surface investigations. Special attention was paid to the development of an inhibitor, which can function under applied potential conditions. Physical methods such as profilometry and four point probe were used to obtain copper removal rates. An organic compound, thiosalicylic acid (TSA), was identified and tested as a potential corrosion inhibitor for copper. TSA offers better protection than the conventionally used benzotriazole (BTA) by oxidizing at high anodic potentials to form a passive film on the copper surface. The passive film formed on the copper surface by addition of TSA was characterized by X-ray photoelectron spectroscopy. The oxidation potential of TSA was characterized using cyclic voltammetry. The passivation and repassivation kinetics was investigated in detail and a passivation mechanism of copper in oxalic acid in the presence of TSA is proposed. Copper removal experiments were performed on a specially designed electrochemical abrasion cell (EC-AC) in both the presence and absence of inhibitors. The effect of anodic potentials on the dissolution of copper was studied to identify suitable conditions for the electro-chemical mechanical planarization process.

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Beaulieu, Robert A. "Oxalic acid production by sclerotinia homoeocarpa the causal agent of dollar spot /." Connect to resource, 2008. http://hdl.handle.net/1811/32174.

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Книги з теми "Oxamic acid"

Hansley, Paula L. Garnet dissolution in oxalic acid-- a possible analog for natural etching of garnet by dissolved organic matter. Washington: U.S. G.P.O, 1994.

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1946-, Bär Albert, and Ritzel Günther, eds. Xylitol and oxalate: Metabolic studies in animals and man. Toronto: Huber, 1985.

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Alan, Rose G., ed. Oxalate metabolism in relation to urinary stone. London: Springer-Verlag, 1988.

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Zavarzin, Igor, Dmitry Kurilov, Vladimir Yarovenko, and Mikhail Krayushkin. MONOTHIOOXAMIDES AND THIOHYDRAZIDES OF OXAMIC ACIDS. LCC MAKS Press, 2022. http://dx.doi.org/10.29003/m3037.978-5-317-06838-7.

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The monograph describes monothiooxamides and thiohydrazides of oxamic acids, methods of their synthesis, chemical properties and physico-chemical methods for studying their structure; describes heterocyclic, steroid-heterocyclic, amino acid and peptide derivatives, metal complexes and supramolecular complexes obtained on the basis of monothiooxamides and thiohydrazides of oxamic acids, as well as their structural studies. The range of issues covered includes diverse topics related to those areas of organic chemistry, organic synthesis, structural chemistry, bioorganic and medical chemistry, as well as technical applications that have received their fruitful development on the basis of these classes of compounds. For specialists in the field of organic chemistry, organic synthesis, analytical, bioorganic and medical chemistry.

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Griswold, Norman E. Standardizing a Sodium Hydroxide Solution with Oxalic Acid. Chemical Education Resources, 1993.

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Fresenius, C. Remigius. A System Of Instruction In Quantitative Chemical Analysis. Arkose Press, 2015.

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Fresenius, C. Remigius. A System Of Instruction In Quantitative Chemical Analysis. Arkose Press, 2015.

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Johnson, Samuel William, C. Remigius Fresenius, and Oscar Dana Allen. A System of Instruction in Quantitative Chemical Analysis. Arkose Press, 2015.

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Gillette, Marcia L., and Richard C. Bell. Studying the Rate of the Reaction of Potassium Premangante & Oxalic Acid: Modular Laboratory Program in Chemistry. Chemical Education Resources, 1998.

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Rose, G. Alan. Oxalate Metabolism in Relation to Urinary Stone. Springer, 2012.

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Частини книг з теми "Oxamic acid"

Pardasani, R. T., and P. Pardasani. "Magnetic properties of heterodinuclear manganese-copper complex of o-phenylenebis-(oxamic acid)." In Magnetic Properties of Paramagnetic Compounds, 1273–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49202-4_624.

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Makkar, Harinder P. S., P. Siddhuraju, and Klaus Becker. "Oxalic Acid." In Plant Secondary Metabolites, 29–32. Totowa, NJ: Humana Press, 2007. http://dx.doi.org/10.1007/978-1-59745-425-4_6.

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Bährle-Rapp, Marina. "Oxalic Acid." In Springer Lexikon Kosmetik und Körperpflege, 394. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_7298.

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Gooch, Jan W. "Oxalic Acid." In Encyclopedic Dictionary of Polymers, 510. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_8305.

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Devi, Rooma, Aman Chauhan, Simmi Kharb, and Chandra Shekhar Pundir. "Oxalic Acid." In Clinical Biochemistry, 287–90. New York: Jenny Stanford Publishing, 2023. http://dx.doi.org/10.1201/9781003455660-29.

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Zheng, Xiaolin, and Jeffrey K. Brecht. "Oxalic Acid Treatments." In Novel Postharvest Treatments of Fresh Produce, 35–50. Boca Raton, FL : CRC Press, 2017.: CRC Press, 2017. http://dx.doi.org/10.1201/9781315370149-2.

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Holze, Rudolf. "Ionic conductance of oxalic acid." In Electrochemistry, 458. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49251-2_427.

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Fatoki, O. S. "Determination of Oxalic Acid in Vegetables." In Vegetables and Vegetable Products, 161–67. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-84830-8_7.

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Holze, Rudolf. "Ionic conductivities of oxalic acid diethylester." In Electrochemistry, 247. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49251-2_230.

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Meyer, Guido, and Renate Klöcking. "Humic Acid Quality: Using Oxalic Acid as Precipitating Agent." In Functions of Natural Organic Matter in Changing Environment, 1055–59. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-5634-2_195.

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Тези доповідей конференцій з теми "Oxamic acid"

Sabilil Muttaqin, Sahal, and Jaler Sekar Maji. "Screening of Oxamic Acid Similar 3D Structures as Candidate Inhibitor Plasmodium falciparum L-Lactate Dehydrogenase of Malaria Through Molecular Docking." In 2018 1st International Conference on Bioinformatics, Biotechnology, and Biomedical Engineering (BioMIC). IEEE, 2018. http://dx.doi.org/10.1109/biomic.2018.8610537.

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Elsheikh, Ellewa Ahmed, Taha Moawad, Ali Alnetaifi, Abdulrahman AlQuraishi, and Yusuf Almutawea. "Evaluation of Organic Acids Implementation in Stimulating Tight Gas Reservoirs: A Case Study on Sarah Sandstone Formation." In SPE Conference at Oman Petroleum & Energy Show. SPE, 2022. http://dx.doi.org/10.2118/200242-ms.

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Abstract Sandstone formations are yet stimulated with mud acid when matrix acidizing is most competent. In terms of high-pressure high-temperature (HP-HT) conditions, the corrosive impact of hydrochloric (HCl) acid prompted the need to explore other alternatives to mud acid. This study examines the efficiency of organic acids in stimulating Sarah sandstone, a tight gas formation of potential. Two Berea cores were first exploited to investigate the optimum and most efficient injected acid volume. The mineralogy of Sarah formation was identified using X-ray diffraction (XRD) aided by Scanning Electron Microscopy (SEM). Formation mineralogy led to the selection of acetic-HF and oxalic-HF as proper acids for stimulation experiments. Bentonite water-base mud was used to alter the permeability of three fresh Sarah sandstone core samples. The organic-HF acids were used to stimulate two core samples, while mud acid was tested in the third core for comparison. Energy-dispersive X-ray spectrometer (EDX) and SEM were utilized to study the impact of acids on porous media. Experiments conducted in Berea core samples led to the execution of five pore volumes (PV) of preflush and one PV of main treatment as the optimum volume during the acidizing trials. XRD and SEM identified pore-filling clay minerals causing the low permeability of Sarah formation. Furthermore, the water-base mud injected decreased the permeability further by 80%. Oxalic-HF and acetic-HF mixtures recovered the initial permeability of core samples by 46% and 35% respectively. SEM-EDX results showed how organic acids have partially unblocked the pathways of the structural pores leading to permeability enhancement. This research not only recommends the use of oxalic-HF acid for acidizing Sarah sandstone formation but also spotlights the ability of organic acids employment as preflush in hydraulic fracturing operations.

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Permana, Ahmadi Jaya, Harsasi Setyawati, Hamami, and Irmina Kris Murwani. "The influence of dicarboxylic acids: Oxalic acid and tartaric acid on the compressive strength of glass ionomer cements." In 5TH INTERNATIONAL CONFERENCE AND WORKSHOP ON BASIC AND APPLIED SCIENCES (ICOWOBAS 2015). AIP Publishing LLC, 2016. http://dx.doi.org/10.1063/1.4943317.

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Aoki, H., S. Yamasaki, and N. Aoto. "Post-Metal-CMP Cleaning Using Oxalic Acid." In 1998 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 1998. http://dx.doi.org/10.7567/ssdm.1998.a-7-7.

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Nicu, Mihaela I., Laura A. Ionascu, Felicia N. Dragolici, Corneliu N. Turcanu, Gheorghe Gh Rotarescu, and Gheorghe C. Dogaru. "Conditioning of Pretreated LLW Generated by the Decontamination of VVR-S Nuclear Research Reactor Primary Circuit." In ASME 2013 15th International Conference on Environmental Remediation and Radioactive Waste Management. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icem2013-96063.

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Concentration of complexing acids solutions (oxalic acid, tartaric acid and citric acid) used in radioactive decontamination by chemical method affects both the mechanical stability and the chemical stability of cement matrix. The paper presents the works performed related to the chemical pretreatment of these organic acids solutions using as neutralizing agent Ca(OH)2. In this way it was possible to increase the concentration of organic acids solutions used and the soluble complex radionuclides passing in chemical precipitates, these affecting in a smaller manner the mechanical stability of the cement matrix. The chemical pretreatment the effluents improve the precipitation and conditioning performances by cementation. Were prepared compositions with complexing agents and compositions for oxidative degradation tests to simulate the concentrations of secondary radioactive waste obtained from the primary circuit decontamination of the VVR-S research reactor. It has been studied the influence of chemical pretreatment of complexing acids solutions of different concentrations on the setting time. Also it was determined the compressive strength of mortar samples in which were embedded these solutions of chemically pretreated organic acids. The results shown that an optimum cement–solution ratio doesn’t have a significant impact on the setting time or on the mechanical properties.

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Jaćimovic, Vučeta, Mirjana Bojanic – Rasovic, Veljko Đurovic, and Lazar Tomovic. "NOVI NAČIN UPOTREBE OKSALNE KISELINE ZA SUZBIJANJE VAROE U CRNOJ GORI." In XXVI savetovanje o biotehnologiji sa međunarodnim učešćem. University of Kragujevac, Faculty of Agronomy, 2021. http://dx.doi.org/10.46793/sbt26.275j.

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In Montenegro, Varoa (Varoa destructor) causes a lot of damage to bee colonies. Beekeepers decide on various ways to control varroa, and that is mainly the use of formic acid (August - September) and oxalic acid (October - November), then thymol-based products - Apiguard and Api Life Var. In practice, many beekeepers perform smoke treatment, based on amitraz, after removing the semi-extensions or extensions. This paper will show the pioneering steps in the use of products based on oxalic acid and essential oils, and very early treatment, from August 1. The preparation was kept for 42 days in bee colonies and a significant result was achieved in the destruction of varroa.

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Farago, Tomas, and Patrik Cermak. "APPLICATION OF STABILIZING AGENTS IN CONTAMINATED SOILS OF OLD MINING AREAS." In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/5.1/s20.005.

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Soil pollution by potentially toxic elements (As, Sb, Cu, Zn, Pb) near the mining areas has become a serious environmental problem. These risk elements can be released into the environment, causing a risk to human health. Stabilized pollution in various materials may constitute an additional risk in the long term. Organic acids play an important role in mobilizing contaminants. In the present work, various stabilizing agents (iron nanoparticles � nanoscale zerovalent iron (nZVI), amorphous manganese oxide (AMO), biochar (BC), natural and synthetic zeolites) were investigated in terms of their stabilizing potential under simulated rhizosphere conditions and their consequences in the mineral composition of samples. One of the aims of this work was to understand the reactivity of potential sorbents in contaminated soils of the abandoned Sb-deposit and subsequent mobility of arsenic and antimony by one-step pot experiments using citric and acetic acid. Another goal of this work was to determine the effectiveness of Aspergillus niger and Neosartorya fischeri strains producing organic acids (citric acid, oxalic acid, acetic acid) in bioleaching and bioaccumulation of Cu, Zn and Pb from mining waste from tailings pond.

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Kim, Gye-Nam, Jei-Kwon Moon, and Chong-Hun Jung. "Development and Performance Assessment of a Soil Washing Equipment for Soil Contaminated With Radionuclide." In The 11th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2007. http://dx.doi.org/10.1115/icem2007-7198.

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The purpose of this study is to develop a soil washing system and to define the most suitable experimental conditions for the individual elemental equipment in a soil washing system for decontaminating the radioactive soil from around a TRIGA (Training, Research, Isotope, General Atomic) reactor in Korea. Analysis results have shown that the main radionuclides were Cs137 and Co60, the soil particle size ranges from 0.063 mm to 1.0 mm and the radioactive concentration was the strongest in a soil particle smaller than 0.063 mm as predicted. Meanwhile, an oxalic acid was found to be the most efficient chemical agent for washing, especially of cobalt. The scrubbing time of four hours was an optimum time to obtain a removal efficiency of more than 75% for 137Cs and 60Co. A mixing ratio of the soil weight to the volume of the oxalic acid solution, 1:10, was observed to be the best for a washing and it was estimated to be reasonable for 2 cycles of a scrubbing with 1.0M of oxalic acid to avoid a generation of an excessive waste-solution.

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Chitra, R., R. R. Choudhury, Frederic Capet, and Pascal Roussel. "The oxalic acid: 2-chloroacetamide crystallization: A new revelation." In SOLID STATE PHYSICS: PROCEEDINGS OF THE 57TH DAE SOLID STATE PHYSICS SYMPOSIUM 2012. AIP, 2013. http://dx.doi.org/10.1063/1.4791310.

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Onija, Oana, Gh Borodi, Irina Kacso, M. N. Pop, D. Dadarlat, I. Bratu, N. Jumate, and Mihaela D. Lazar. "Preparation and characterization of urea-oxalic acid solid form." In PROCESSES IN ISOTOPES AND MOLECULES (PIM 2011). AIP, 2012. http://dx.doi.org/10.1063/1.3681960.

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Звіти організацій з теми "Oxamic acid"

Ketusky, Edward. REMEDIATION OF SPENT OXALIC ACID NUCLEAR DECONTAMINATION SOLUTIONS USING OZONE. Office of Scientific and Technical Information (OSTI), February 2018. http://dx.doi.org/10.2172/1462344.

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Peterson, K. D. Foam application of oxalic acid as a decontamination waste minimization tool. Office of Scientific and Technical Information (OSTI), March 1992. http://dx.doi.org/10.2172/10137080.

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WIERSMA, BRUCEJ. Hydrogen Generation During the Corrosion of Carbon Steel in Oxalic Acid. Office of Scientific and Technical Information (OSTI), August 2004. http://dx.doi.org/10.2172/833395.

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Peterson, K. D. Foam application of oxalic acid as a decontamination waste minimization tool. Office of Scientific and Technical Information (OSTI), March 1992. http://dx.doi.org/10.2172/6645403.

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WHITE, M. A. Molar Fraction of Oxalic Acid in Vapor Phase for Tank 241-C-106 Acid Dissolution Project. Office of Scientific and Technical Information (OSTI), August 2003. http://dx.doi.org/10.2172/815073.

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Mickalonis, J. DEPOSITION TANK CORROSION TESTING FOR ENHANCED CHEMICAL CLEANING POST OXALIC ACID DESTRUCTION. Office of Scientific and Technical Information (OSTI), August 2011. http://dx.doi.org/10.2172/1023613.

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Gilman, Sol. Coulometric Study of Rates of Oxalic Acid Adsorption at a Polycrystalline Platinum Electrode. Fort Belvoir, VA: Defense Technical Information Center, September 2012. http://dx.doi.org/10.21236/ada570408.

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STALLINGS, MARY. Dissolution of Simulated and Radioactive Savannah River Site High-Level Waste Sludges with Oxalic Acid & Citric Acid Solutions. Office of Scientific and Technical Information (OSTI), July 2004. http://dx.doi.org/10.2172/825806.

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Dickman, Martin B., and Oded Yarden. Pathogenicity and Sclerotial Development of Sclerotinia sclerotiorum: Involvement of Oxalic Acid and Chitin Synthesis. United States Department of Agriculture, September 1995. http://dx.doi.org/10.32747/1995.7571357.bard.

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Sclerotinia sclerotiorum (Lib.) de Bary is among the world's most successful and omnivorous fungal plant pathogens. Included in the nearly 400 species of plants reported as hosts to this fungus are canola, alfalfa, soybean, sunflower, dry bean and potato. The general inability to develop resistant germplasm with these economically important crops to this pathogen has focused attention on the need for a more detailed examination of the pathogenic determinants involved in disease development. A mechanistic understanding of the successful strategy(ies) used by S. sclerotiorum in colonizing host plants and their linkage to fungal development may provide targets and/or novel approaches with which to design resistant crop plants. This proposal involved experiments which were successful in generating genetically-engineered plants harboring resistance to S. sclerotiorum, the establishment and improvement of molecular tools for the study of this pathogen and the analysis of the linkage between pathogenicity, sclerotial morphogenesis and two biosynthetic pathways: oxalic acid production and chitin synthesis. The highly collaborative project has improved our understanding of S. sclerotiorum pathogenicity, established reliable molecular techniques to facilitate experimental manipilation and generated transgenic plants which are resistant to this econimically important fungus.

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SHULTZ, M. V. SAFETY EVALUATION OF OXALIC ACID WASTE RETRIEVAL IN SINGLE SHELL TANK (SST) 241-C-106. Office of Scientific and Technical Information (OSTI), June 2003. http://dx.doi.org/10.2172/812341.

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