Academic literature on the topic 'Thiourea'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Thiourea.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Thiourea"

1

Ngaini, Zainab, Wan Sharifatun Handayani Wan Zulkiplee, and Ainaa Nadiah Abd Halim. "One-Pot Multicomponent Synthesis of Thiourea Derivatives in Cyclotriphosphazenes Moieties." Journal of Chemistry 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/1509129.

Full text
Abstract:
In this study, hexasubstituted thiourea was carried out via reaction of isothiocyanato cyclophosphazene intermediates with a series of aromatics amines and amino acids in a one-pot reaction system. The reaction was not as straightforward as typical thiourea synthesis. Six unexpected thiourea derivatives3a–fwere formed in the presence of cyclotriphosphazene moieties in good yields (53–82%). The structures of3a–fwere characterized by elemental analysis and FTIR,1H,13C, and31P NMR spectroscopies. The occurrence of reverse thioureas formation in a one-pot reaction system is discussed. The possible
APA, Harvard, Vancouver, ISO, and other styles
2

Siddharth A. Waghmare and Swapnil B. Sarkate. "Design, synthesis and characterization of some novel Thiocarbamidopyrimidines." International Journal of Science and Research Archive 10, no. 2 (2023): 895–99. http://dx.doi.org/10.30574/ijsra.2023.10.2.1034.

Full text
Abstract:
Interaction of 2 chloro pyrimidines with various substituted thioureas such as thiourea, N- phenylthiourea, 1,3 Dimethylthiourea, N- allylthiourea and ethyl thiourea were carried in presence of isopropanol as a medium. The product isolated in these reactions were characterized on the basis of elemental analysis, chemical characteristics and spectral studies.
APA, Harvard, Vancouver, ISO, and other styles
3

Binzet, Gün, Gülten Kavak, Nevzat Külcü, Süheyla Özbey, Ulrich Flörke, and Hakan Arslan. "Synthesis and Characterization of Novel Thiourea Derivatives and Their Nickel and Copper Complexes." Journal of Chemistry 2013 (2013): 1–9. http://dx.doi.org/10.1155/2013/536562.

Full text
Abstract:
New benzoyl thiourea derivatives and their nickel and copper complexes were synthesized. The structure of the synthesized compounds were confirmed by elemental analysis, FT-IR, and1H NMR techniques. Four of the synthesized compounds are analyzed by X-ray single crystal diffraction technique. WhereasN,N-dimethyl-N′-(4-fluorobenzoyl)thiourea,N,N-diethyl-N′-(4-fluorobenzoyl)thiourea, andN,N-di-n-butyl-N′-(4-fluorobenzoyl) thiourea crystallize in the monoclinic system,bis(N,N-di-n-propyl-N′-(4-fluorobenzoyl)thioureato) nickel(II) complex crystallizes in the triclinic system. These ligand molecules
APA, Harvard, Vancouver, ISO, and other styles
4

Elshaier, Yaseen A. M. M., Ashraf A. Aly, Mohamed Abdel-Aziz, et al. "Synthesis and Identification of New N,N-Disubstituted Thiourea, and Thiazolidinone Scaffolds Based on Quinolone Moiety as Urease Inhibitor." Molecules 27, no. 20 (2022): 7126. http://dx.doi.org/10.3390/molecules27207126.

Full text
Abstract:
Synthesis of thiazolidinone based on quinolone moiety was established starting from 4-hydroxyquinol-2-ones. The strategy started with the reaction of ethyl bromoacetate with 4-hydroxyquinoline to give the corresponding ethyl oxoquinolinyl acetates, which reacted with hydrazine hydrate to afford the hydrazide derivatives. Subsequently, hydrazides reacted with isothiocyanate derivatives to give the corresponding N,N-disubstituted thioureas. Finally, on subjecting the N,N-disubstituted thioureas with dialkyl acetylenedicarboxylates, cyclization occurred, and thiazolidinone derivatives were obtain
APA, Harvard, Vancouver, ISO, and other styles
5

Gonçalves, Itamar L., Rafaela R. da Rosa, Vera L. Eifler-Lima, and Aloir A. Merlo. "The use of isoxazoline and isoxazole scaffolding in the design of novel thiourea and amide liquid-crystalline compounds." Beilstein Journal of Organic Chemistry 16 (February 6, 2020): 175–84. http://dx.doi.org/10.3762/bjoc.16.20.

Full text
Abstract:
A series of novel thiourea and amide liquid crystals containing 5-membered isoxazoline and isoxazole rings were synthetized and the liquid crystal properties studied. Thioureas were obtained using a condensation reaction of benzoyl chlorides, arylamines and ammonium thiocyanate. The amides, on the other hand, were the byproduct of a quantitative reaction which used potassium cyanate as the starting material. Thiourea and amide derivatives were predominantly SmA mesophase inductors. A nematic mesophase was observed only for thioureas and amides containing an isoxazole ring. Additionaly, the liq
APA, Harvard, Vancouver, ISO, and other styles
6

Chayah, Mariem, M. Encarnación Camacho, M. Dora Carrión, Miguel A. Gallo, Miguel Romero, and Juan Duarte. "N,N′-Disubstituted thiourea and urea derivatives: design, synthesis, docking studies and biological evaluation against nitric oxide synthase." MedChemComm 7, no. 4 (2016): 667–78. http://dx.doi.org/10.1039/c5md00477b.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Rosiak, Damian, Andrzej Okuniewski, and Jarosław Chojnacki. "The influence of the type of halogen substituent and its position on the molecular conformation, intermolecular interactions and crystal packing for a series of 1-benzoyl-3-(halogenophenyl)thioureas." Acta Crystallographica Section C Structural Chemistry 77, no. 1 (2021): 11–19. http://dx.doi.org/10.1107/s2053229620015594.

Full text
Abstract:
By the reaction of benzoyl chloride, potassium isothiocyanate and the appropriate halogenoaniline, i.e. 2/3/4-(bromo/iodo)aniline, we have obtained five new 1-benzoyl-3-(halogenophenyl)thioureas, namely, 1-benzoyl-3-(2-bromophenyl)thiourea and 1-benzoyl-3-(3-bromophenyl)thiourea, C14H11BrN2OS, and 1-benzoyl-3-(2-iodophenyl)thiourea, 1-benzoyl-3-(3-iodophenyl)thiourea and 1-benzoyl-3-(4-iodophenyl)thiourea, C14H11IN2OS. Structural and conformational features of the compounds have been analyzed using X-ray diffraction and theoretical calculations. The novel compounds were characterized by solid-
APA, Harvard, Vancouver, ISO, and other styles
8

Al-Riyahee, Ali A. A. "First Row Transition Metal Complexes Derived from N, Nʹ-Substituted Thiourea: Synthesis, Geometrical Structures and Cyclic Voltammetry Probe: A Review". BASRA JOURNAL OF SCIENCE 39, № 1 (2021): 96–118. http://dx.doi.org/10.29072/basjs.202117.

Full text
Abstract:
Thioureas or thiourea derivatives as organosulfur compounds are one of the most widely used ligands in different applications as we are going to discuss it extensively such as in coordination chemistry by involving them to rich sources of N, O and S atoms coordinating through S atom, S and O atoms in benzoyl derivatives or S, O and N atoms in pyridyl hetrocylic benzoyl derivatives. These hard and soft donor sites facilitate the bonding between thiourea free ligand and metal ion through one or more to make ligands behave as mono, bi or multidentate ligands to form huge and stable series of the
APA, Harvard, Vancouver, ISO, and other styles
9

Venkatachalam, TK, Elise A. Sudbeck, Chen Mao, and Fatih M. Uckun. "Piperidinylethyl, Phenoxyethyl and Fluoroethyl Bromopyridyl Thiourea Compounds with Potent Anti-HIV Activity." Antiviral Chemistry and Chemotherapy 11, no. 5 (2000): 329–36. http://dx.doi.org/10.1177/095632020001100503.

Full text
Abstract:
Derivatives of piperidinylethyl, phenoxyethyl and fluoroethyl bromopyridyl thioureas were designed and synthesized as non-nucleoside reverse transcriptase inhibitors (NNRTIs) of HIV-1 reverse transcriptase (RT). The anti-HIV activity of these compounds was examined by determining their ability to inhibit the replication of the HIV-1 strain HTLVIIIB in human peripheral blood mononuclear cells. The unsubstituted parent pyridyl thiourea compound N-[2-(1-piperidine)ethyl]-N′-[2-(pyridyl)] thiourea (1) exhibited no anti-HIV activity, even at 100 μM. However, the thiourea derivatives that contain a
APA, Harvard, Vancouver, ISO, and other styles
10

Saeed, Aamer, Michael Bolte, Mauricio F. Erben, and Hiram Pérez. "Intermolecular interactions in crystalline 1-(adamantane-1-carbonyl)-3-substituted thioureas with Hirshfeld surface analysis." CrystEngComm 17, no. 39 (2015): 7551–63. http://dx.doi.org/10.1039/c5ce01373a.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Thiourea"

1

Ngo, Thi Thuy Duong. "Chiral thioureas, thiourea-phosphines and amines derived from biomass : synthesis and applications in asymmetric organocatalysis." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS476.

Full text
Abstract:
Cette thèse porte sur la préparation de nouveaux catalyseurs chiraux à partir de composés naturels issus de la biomasse, et leurs applications en organocatalyse asymétrique. La première partie décrit la synthèse de thiourées énantiomériquement pures dérivées de l'isosorbide et l’isommanide. Ces thiourées ont été évaluées comme catalyseurs organiques dans des réactions asymétriques de Friedel-Crafts, d’alkylation, d’addition de type aza-Michael, d’hydroamination et de type Morita-Baylis-Hillman (MBH). Les meilleurs résultats en termes de réactivité et d’induction asymétrique, ont été obtenus da
APA, Harvard, Vancouver, ISO, and other styles
2

Broan, Christopher John. "A mechanistic study of the acid and base catalysed reactions of thiourea, 1-substituted thioureas and 1,3 -disubstituted thioureas with 1,2-diketones." Thesis, University of St Andrews, 1989. http://hdl.handle.net/10023/14978.

Full text
Abstract:
Thiourea, 1-substituted thioureas and 1,3-disubstituted thioureas react under acidic or basic catalysis with 1,2-diketones to give a wide variety of products. The nature of the product or products depends on the conditions used, the degree of substitution of the thiourea and on the nature of the aromatic or aliphatic groups attached to the dicarbonyl unit of the diketone. The mechanisms of formation of the various products have been investigated by a variety of techniques, including the determination of rate equations by ultraviolet spectroscopy, the influence of side group substituents on the
APA, Harvard, Vancouver, ISO, and other styles
3

Brennan, Nicholas Frederick. "Structural studies of thallium(l)-thiourea complexes." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-02202007-173756.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

MESTNIK, SONIA A. C. "Separacao do Mo-99 do Te-132 usando tioureia como agente complexante .Aplicacao a separacao do Mo-99 dos produtos de fissao." reponame:Repositório Institucional do IPEN, 1987. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9881.

Full text
Abstract:
Made available in DSpace on 2014-10-09T12:32:25Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:10:31Z (GMT). No. of bitstreams: 1 03134.pdf: 2064767 bytes, checksum: 2ee561f5c7d60b299f3f1a26c7b85831 (MD5)<br>Tese(Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
APA, Harvard, Vancouver, ISO, and other styles
5

Apps, James Frederick Shuan-Liang. "Synthesis and application of thiourea-S,S-dioxide derivatives." Thesis, University of Warwick, 2008. http://wrap.warwick.ac.uk/53126/.

Full text
Abstract:
The structure and synthesis of N,N'-disubstituted thiourea-S,S-dioxides were investigated experimentally and computationally. Hydrogen peroxide oxidation of acyclic and cyclic N,N'-dialkylthioureas furnished S,S-dioxides in agreement with computational predictions. Some s,S,S-trioxides were also isolated. An X-ray crystallographic study of N,N'-diisopropylthiourea dioxide, fIrst synthesised in this work, verilled computational models. The prediction of a stable N,N'-diarylthiourea dioxide derivative was supported by successful isolation of the dioxide. The application of N,N'-diisopropylthiour
APA, Harvard, Vancouver, ISO, and other styles
6

Mebrahtu, Fanuel M. "Transport and extraction of Au(lll) using thiourea ligands." Thesis, Stellenbosch : Stellenbosch University, 2004. http://hdl.handle.net/10019.1/50206.

Full text
Abstract:
Thesis (MSc)--Stellenbosch University, 2004.<br>ENGLISH ABSTRACT: A series of di- and mono-substituted acyl(aroyl) thioureas were examined for the extraction and transportation of Au(III). Two-phase metal ion extraction experiments were employed to investigate the extraction behaviour of these ligands. The effect of varying ligand concentration on the extraction trend of these ligands was investigated. The results show that the different substituent groups on the benzoyl ring can affect the extraction pattern of the metal. Furthermore, the alkyl substituents on the thiourea moiety and va
APA, Harvard, Vancouver, ISO, and other styles
7

Nguyen, Thi-Huong. "Synthèse de nouveaux catalyseurs chiraux à base de la L-proline. Applications en catalyse asymétrique." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112382.

Full text
Abstract:
Depuis de nombreuses années, les phosphines chirales multifonctionnelles se sont révélées être des outils synthétiques puissants en organocatalyse asymétrique. Ces catalyseurs qui contiennent un site de base de Lewis et un site d'acide de Bronsted, ont reçu une attention particulière en raison de leur efficacité pour créer des liaisons C-C avec de très bonnes énantiosélectivités. A notre connaissance, la synthèse d'organocatalyseurs de type thiourée-phosphine dérivés de la (L)-proline n'a jamais été décrite dans la littérature. Ce sujet de thèse concerne la synthèse d'une nouvelle famille d'or
APA, Harvard, Vancouver, ISO, and other styles
8

Ghebregziabiher, Berhe Haile. "Synthesis of chiral thiourea ligands and their transition metal complexes." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53610.

Full text
Abstract:
Thesis (MSc)--Stellenbosch University, 2003.<br>ENGLISH ABSTRACT: Modification of chitosan with benzoylisothiocyanate was attempted, however due to solvent problem the study was left incomplete till appropriate solvent is designed. N,N-diethyl-N -camphanoylthiourea (HL8), N-piperidyl-N '-camphanoylthiourea (HL9), N-pyrrolidyl-N -camphanoylthiourea (HL10) and N,N-diethyl-N -adamantylcarbonyl thiourea (HL11)have been synthesised and characterised for the first time. Two of these ligands HL8 and HL11, were used to form a number of transition metal complexes, namely H30+{fae-[Co(L8-S,Obn, c
APA, Harvard, Vancouver, ISO, and other styles
9

Rampalakos, Konstantinos. "Asymmetric synthesis with vapol derivatives and novel chiral thiourea organocatalysts." Diss., Connect to online resource - MSU authorized users, 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Zhang, Hong-Guang. "Some aspects of the use of thiourea in gold processing." Thesis, Zhang, Hong-Guang (1997) Some aspects of the use of thiourea in gold processing. PhD thesis, Murdoch University, 1997. https://researchrepository.murdoch.edu.au/id/eprint/52720/.

Full text
Abstract:
Thiourea is a potential alternative for cyanide in gold processing. In an acid solution of thiourea containing an oxidant such as iron(III) ions, gold can be readily dissolved as the gold thiourea complex. Although the thiourea leaching process has been studied quite extensively, the fundamental electrochemistry associated with this process remained unexamined. In addition, the method for the recovery of gold from thiourea solutions has received relatively little attention. This thesis presents a study of these aspects. The results from a detailed electrochemical study of the dissolution o
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Thiourea"

1

K, Ziegler-Skylakakis, United Nations Environment Programme, International Labour Organisation, Inter-Organization Programme for the Sound Management of Chemicals., and World Health Organization, eds. Thiourea. World Health Organization, 2003.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Gesellschaft Deutscher Chemiker. Beratergremium ür Umweltrelevante Altstoffe. Thiourea. Hirzel, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Kagaku Busshitsu Hyōka Kenkyū Kikō and Shin Enerugī Sangyō Gijutsu Sōgō Kaihatsu Kikō (Japan), eds. Chio nyōso: Thiourea. Seihin Hyōka Gijutsu Kiban Kikō Kagaku Busshitsu Hyōka Kenkyū Kikō, 2007.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

A, Eisele J. Leaching gold-silver ores with sodium cyanide and thiourea under comparable conditions. U.S. Dept. of the Interior, Bureau of Mines, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kenna, C. The extraction of gold from bioleached pyrite using novel thiourea leaching technology. Australasian Institute of Mining and Metallurgy, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

United States. Bureau of Mines. Leaching gold-silver ores within sodium cyanide and thiourea under comparable conditions. s.n, 1988.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

M. A. M. Abou Zour. Inhibitive effects of thiourea and mixed inhibitor systems on mild steel in CO2 solutions. UMIST, 1997.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Saenz, Natalie. Synthesis and Characterization of Nanoplatelets and Nanoplatelet Heterostructures made with Thiourea and Selone Precursors. [publisher not identified], 2022.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Sandberg, R. G. Recovery of silver, gold, and lead from a complex sulfide ore using ferric chloride, thiourea, and brine leach solutions. U.S. Dept. of the Interior, Bureau of Mines, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

United States. Bureau of Mines. Recovery of Silver, Gold, and Lead From A Complex Sulfide Ore Using Ferric Chloride, Thiourea, and Brine Leach Solutions. s.n, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Thiourea"

1

Gooch, Jan W. "Thiourea." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_11836.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Gooch, Jan W. "Thiourea Resins." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_11838.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Hirota, E., K. Kuchitsu, T. Steimle, J. Vogt, and N. Vogt. "66 CH4N2S Thiourea." In Molecules Containing No Carbon Atoms and Molecules Containing One or Two Carbon Atoms. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-540-70614-4_267.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Gooch, Jan W. "Thiourea-Formaldehyde Resin." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_11837.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Takemoto, Yoshiji, and Tsubasa Inokuma. "Bifunctional Thiourea Catalysts." In Asymmetric Synthesis II. Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527652235.ch29.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Bährle-Rapp, Marina. "Dimethylol Ethylene Thiourea." In Springer Lexikon Kosmetik und Körperpflege. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_3144.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Vogt, J. "87 CH4N2S Thiourea." In Asymmetric Top Molecules. Part 1. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-10371-1_89.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Huang, Yi-Bo, Wen-Bin Yi, and Chun Cai. "Thiourea Based Fluorous Organocatalyst." In Topics in Current Chemistry. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/128_2011_248.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Inokuma, Tsubasa. "Development of Hydroxy Thiourea Catalysts." In Development of Novel Hydrogen-Bond Donor Catalysts. Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54231-5_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Azenha, A., F. M. Brandão, M. S. J. Marques, et al. "Thiourea Contact Sensitivity in Portugal." In Current Topics in Contact Dermatitis. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-74299-6_61.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Thiourea"

1

K, Venkata Muralidhar, Vinay Jain, and Beena Rai. "Thiourea Derivatives as Steel Corrosion Inhibitors: Density Functional Theory and Experimental Studies." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13317.

Full text
Abstract:
Abstract Thiourea and its derivatives have been studied for several decades, for their corrosion inhibition characteristics with steels. However, their interaction mechanisms with steel are not well understood. Such an understanding may be vital for design of novel thiourea derivatives as corrosion inhibitors for steels. We have carried out state of the art density functional theory (DFT) computations and experiments (weightloss, polarization and electrochemical impedance) to understand the effect of thioureas on corrosion of steel. The interactions of thiourea and dibutyl thiourea separately
APA, Harvard, Vancouver, ISO, and other styles
2

McConnell, Stanley B. "Chemical Treatment of Thiourea in Acidic Cleaning Wastes." In CORROSION 1990. NACE International, 1990. https://doi.org/10.5006/c1990-90149.

Full text
Abstract:
Abstract The disposal of spent-chemical cleaning solutions and chemicals has recently become more difficult and expensive, because of new environmental regulatory guidelines. Increasing public awareness makes it clear that new and more effective treatment methods are needed which completely eliminate or detoxify hazardous substances. The use of thiourea in combination with inhibited acid is well-established technology for the chemical removal of iron and copper scales from industrial equipment. However, thiourea is a suspected carcinogen that has caused cancer (skin, thyroid and liver) in labo
APA, Harvard, Vancouver, ISO, and other styles
3

Eichinger, M., M. Truschner, D. Zwittnig, A. Trautmann, and G. Mori. "Hydrogen Charging of Armco Iron and L80 Steel in Various Electrolytes." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17604.

Full text
Abstract:
Abstract Armco iron and L80 steel (according to API 5CT) were charged under various conditions due to the lack of knowledge of the amount of hydrogen, which is absorbed during operation and laboratory charging. These two materials were charged in sodium chloride (NaCl), sulfuric acid (H2SO4), both with and without addition of thiourea (CH4N2S) and in H2S (NACE TM0177) at open circuit potential. Additionally, cathodic charging was done in sodium chloride and sulfuric acid, both with thiourea added at a current density of 1 mA/cm2. The charging time was between 2 and 200 hours for both methods.
APA, Harvard, Vancouver, ISO, and other styles
4

Shih, H. C., and J. C. Lin. "Synergism of Thiourea and Alum for the Corrosion Inhibition of Carbon Steel in a 0.5 M NaCl Aqueous Solution." In CORROSION 1987. NACE International, 1987. https://doi.org/10.5006/c1987-87004.

Full text
Abstract:
Abstract A mixture of thiourea (T) and alum (AK) was investigated as a synergistic corrosion inhibitor for steel corrosion in a 0.5 M NaCl solution. The corrosion inhibition was almost negligible by thiourea alone and was incomplete by the single use of alum. However, the risks that (1) the corrosion of steel accelerated by an insufficient amount of alum, and (2) the pitting corrosion induced by alum even in a sufficient amount were avoidable if the combination of AK and T (AKT) in place of AK used as an inhibitor. A range of composition of AKT was assessed containing 0.1-100 mM of T and 0.3-1
APA, Harvard, Vancouver, ISO, and other styles
5

Latha Mageshwari, P. S., R. Priya, and S. Anitha. "Optical, Mechanical and Dielectric Behavior of Urea and Thiourea Doped Lithium Sulphate Monohydrate Single Crystals." In 2024 International Conference on Integration of Emerging Technologies for the Digital World (ICIETDW). IEEE, 2024. https://doi.org/10.1109/icietdw61607.2024.10939938.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Lukovits, István, Katalin Pálfi, Imre Bakó, and Erika Kálmán. "The Way to Less Toxic Inhibitors - A Model of the Inhibition Mechanism of Thiourea Compounds." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96148.

Full text
Abstract:
Abstract Interaction of corrosion inhibitors with metal surfaces in acidic solutions was modelled using a non-linear model encompassing the Langmuir adsorption isotherm. The model yielded QSAR equations with multiple correlation coefficients equal to 0.97.
APA, Harvard, Vancouver, ISO, and other styles
7

Truschner, M., J. Deutsch, G. Mori, M. Kapp, P. Gruber, and H. Köberl. "Influence of Cold Deformation on Hydrogen Embrittlement by Determining the Critical Hydrogen Concentration in High Strength Steel for Wire Applications." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16414.

Full text
Abstract:
Abstract The resistance of steel wires to hydrogen embrittlement is very difficult to define and is therefore rarely investigated in literature. In this work a C65 steel wire was tested in hot rolled condition and after cold rolling. Both material states were first cathodically charged in sodium chloride (NaCl) with addition of thiourea (CH4N2S) at different current densities to determine the hydrogen content of each charging condition. In the next step mechanical properties and susceptibility to hydrogen induced stress corrosion cracking (HISCC) were determined in Slow Strain Rate Tests (SSRT
APA, Harvard, Vancouver, ISO, and other styles
8

Truschner, M., P. Gruber, J. Deutsch, J. Pengg, G. Mori, and H. Köberl. "Influence of Cold Deformation on Hydrogen Embrittlement by Determining the Critical Hydrogen Concentration in High Strength Steel for Wire Applications." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17639.

Full text
Abstract:
ABSTRACT The resistance of steel wires to hydrogen embrittlement is very difficult to define and is therefore rarely investigated in literature. In this work a C65 steel wire was tested in hot rolled condition and after cold working. Both material states were first cathodically charged in sodium chloride (NaCl) with addition of thiourea (CH4N2S) at different current densities to determine the hydrogen content of each charging condition. In the next step mechanical properties and susceptibility to hydrogen induced stress corrosion cracking (HISCC) were determined in Slow Strain Rate Tests (SSRT
APA, Harvard, Vancouver, ISO, and other styles
9

Marshakov, Andrey I., Roman I. Bogdanov, Vasily E. Ignatenko, Tatiana A. Nenasheva, and Andrey B. Arabey. "Effect of Electrolyte Composition on Near-neutral pH Stress Corrosion Crack Propagation." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11285.

Full text
Abstract:
Abstract The electrolyte composition was shown to affect the crack growth rate in pipeline steel X70. Citrate buffer (pH 5.5) and a mixture of NS4 solution with borate buffer (pH 7.0) were used as background solutions under static and cyclic loading, respectively. Various substances were added to the citrate buffer solution in order to affect anodic dissolution (AD) and hydrogen absorption (HA) of the metal. AD inhibitors decrease the crack growth rate. Sulfide, carbonate and phosphate ions, which stimulate the AD process, accelerate crack propagation in weakly-acidic solutions. Thiourea stimu
APA, Harvard, Vancouver, ISO, and other styles
10

Shank, R. A., and T. R. McCartney. "The Search for a Green Alternative in Organic Acid Corrosion Inhibition." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05991.

Full text
Abstract:
Abstract The application of acid corrosion inhibitors is an absolute necessity to prevent damage to process equipment during acid cleaning operations. The use of organic acids and mineral acids that are not HCl has expanded because of environmental concerns and issues of compatibility with alloys such as stainless or duplex steel. Inhibitors which are used to protect the metals from corrosion by organic acids often contain a number of highly toxic compounds based on amine technology such as quaternary amines, amine ethoxylates, imidazolines and polyamides as well as sulfur compounds such as th
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Thiourea"

1

Deschênes, G. Contribution à l'étude du traitement de l'or par la thiourée. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/307267.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!