Academic literature on the topic 'HN03'

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 'HN03.'

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 "HN03"

1

Treviño-Cueto, Diego Alejandro, Melchor Cepeda-Siller, Francisco Daniel Hernández-Castillo, and Sergio René Sánchez-Peña. "Hongos nematófagos del género Arthrobotrys spp., en el control de Meloidogyne incognita bajo condiciones in vitro." Revista Agraria 14, no. 1 (2017): 01–05. http://dx.doi.org/10.59741/agraria.v14i1.529.

Full text
Abstract:
El nematodo agallador Meloidogyne incognita está reportado como el principal nematodo que causa daños severos en la agricultura alrededor del mundo. Los hongos nematófagos del género Arthrobotrys spp. son enemigos naturales de los nematodos, a los que pueden inmovilizar y digerir. Con la finalidad de disminuir el uso de nematicidas químicos, se pretende generar nuevas tecnologías a partir del uso de agentes para el control biológico de Meloidogyne incognita, como los hongos nematófagos del género Arthrobotrys spp. El objetivo del presente trabajo fue identificar especies del hongo del género A
APA, Harvard, Vancouver, ISO, and other styles
2

Nguyen, Duc Huy, My Tieu Ngoc Le, Hoang Loc Nguyen, et al. "Isolation of Weissella cibaria from Pacific White Shrimp (Litopenaeus vannamei) Gastrointestinal Tract and Evaluation of Its Pathogenic Bacterial Inhibition." Indian Journal of Science and Technology 13, no. 10 (2020): 1200–1212. https://doi.org/10.17485/ijst/2020/v13i10/149934.

Full text
Abstract:
Abstract <strong>Objective:</strong>&nbsp;The present study reported the isolation of lactic acid bacteria from the shrimp gastrointestinal tract and evaluation of its antagonistic activity against pathogenic bacteria. <strong>Methods/ statistical analysis:</strong>&nbsp;Lactic bacteria from the gastrointestinal tract of alive healthy shrimp were screened on sterilized MRS medium. Vibrio sp. inhibition by isolates was conducted by the agar-well diffusion assay. The isolates were identified by 16S rRNA sequencing. Antibacterial activity was investigated against 25 Vibrio sp. isolates, Staphyloc
APA, Harvard, Vancouver, ISO, and other styles
3

Rastuti, Undri, Jumina Jumina, and Sabirin Matsjeh. "SINTESIS 6-NITRO VERATRALDEHID (3,4-DIMETOKSI-6-NITRO BENZALDEHID) DARI VANILIN DENGAN HNO3 DAN CAMPURAN HNO3-H2SO4." Molekul 4, no. 2 (2009): 62. http://dx.doi.org/10.20884/1.jm.2009.4.2.64.

Full text
Abstract:
The synthesis of 6-nitro veratraldehyde from vanillin was used HNO3 and a mixture of HNO3 and H2SO4. The reaction steps were (I) methylation of vanillin and (2) nitration of the methylation product. Methylation of vanillin was conducted using dimetnylsulfate and NaOH at 60 0C for 2 hours. Nitration of the methylation product was performed in two methods, which using HN03 and using a mixture of HN03 and H2SO4 both at 5 0C for 2 hours. The products were analyzed by means of TLC, GC; IR, 1H-NMR and GC-MS spectrometers.The methylation of vanillin gave 87.7 % yield of veratraldehyde which was found
APA, Harvard, Vancouver, ISO, and other styles
4

Sanchez, Francisco Garcia, A. Navas Diaz, and J. Medinilla. "Mineralization Procedure for Determination of Copper in Aerosols Using Photometric Method Based on Copper-BPKQH Complex." Journal of AOAC INTERNATIONAL 73, no. 5 (1990): 764–70. http://dx.doi.org/10.1093/jaoac/73.5.764.

Full text
Abstract:
Abstract A mineralization procedure Is proposed for copper aerosols In which samples are mineralized by wet-ashing with HN03 + HCIO4 mixture. Copper content Is determined by a photometric method based on formation of a complex between copper and benzyl 2-pyrldyl ketone 2-qulnolylhydrazone (BPKQH). The Influence of pH, ethanol content, and reagent concentration Is studied. Copper determination at pH = 7.3, In the range 0.05 to 3 ppm is proposed. Mineralization with HNO3 Is carried out In different conditions of evaporation (with or without dryness) and manipulation. Analysis of variance by the
APA, Harvard, Vancouver, ISO, and other styles
5

Sahida, Sahida, Baharuddin Hamzah, and Siti Nuryanti. "Emulsion Stability Tes and Effect of HNO3 Concentration in the Internal Phase on Cadmium Ion Extraction using Liquid Membrane Emulsion Technique." Jurnal Akademika Kimia 9, no. 1 (2020): 34–39. http://dx.doi.org/10.22487/j24775185.2020.v9.i1.pp34-39.

Full text
Abstract:
Study on the emulsion stability and cadmium ion extraction tests was performed using the liquid membrane emulsion technique. This study aimed to determine the emulsion stability between the membrane phase and the internal phase with the variation of the ratio (2:1, 1:1, 2:3, and 1:2), and to determine the maximum conditions of cadmium ion extraction in a solution including the various concentration of HNO3 solution 1, 1.5, 2, and 2.5 M. This study is a laboratory experimental method using benzoyl acetone compound as cation carrier, kerosene as membrane phase, HNO3 solution as the internal phas
APA, Harvard, Vancouver, ISO, and other styles
6

Puchyr, Richard F., and Rubin Shapiro. "Determination of Trace Elements in Foods by HCl-HNO3 Leaching and Flame Atomic Absorption Spectroscopy." Journal of AOAC INTERNATIONAL 69, no. 5 (1986): 868–70. http://dx.doi.org/10.1093/jaoac/69.5.868.

Full text
Abstract:
Abstract Aluminum, iron, tin, zinc, calcium, magnesium, nickel, copper, chromium, cadmium, and potassium in foods can be extracted by HC1- HN03 leaching and determined quantitatively using flame atomic absorption spectroscopy (AAS), with recoveries ranging from 90 to 110%. Thirty to 40 samples of almost any type of food sample can be analyzed routinely for 2 elements in 4-5 h. In contrast, one or 2 days are required when a wet-ash or dry-ash technique is used. Extraction consists of weighing 2-10 g samples into 125 mL Erlenmeyer flasks, adding 20 mL concentrated HCI-HNO3 (9 + 1), then heating
APA, Harvard, Vancouver, ISO, and other styles
7

Saito, Isao, Harumi Oshima, Norihisa Kawamura, and Masuo Yamada. "Screening Method for Determination of High Levels of Cadmium, Lead, and Copper in Foods by Polarized Zeeman Atomic Absorption Spectrometry Using Discrete Nebulization Technique." Journal of AOAC INTERNATIONAL 71, no. 4 (1988): 829–32. http://dx.doi.org/10.1093/jaoac/71.4.829.

Full text
Abstract:
Abstract A screening method for determination of cadmium, lead, and copper in foods was developed. The sample (1-3 g) is digested with HN03- H2S04-HCI04 in a centrifuge tube attached to a straight glass tube that prevents loss of HN03 by volatilization. After digestion, potassium iodide, H2S04, and MIBK (4-methyl 2-pentanone) are added, and the metals are extracted with MIBK as metal iodides. The MIBK solution is injected and the metals are determined by flame polarized Zeeman atomic absorption spectrometry using a discrete nebulization technique. Recoveries of metals from fortified milk powde
APA, Harvard, Vancouver, ISO, and other styles
8

Dabeka, Robert W., and Gladys M. A. Lacroix. "Total Arsenic in Foods after Sequential Wet Digestion, Dry Ashing, Coprecipitation with Ammonium Pyrrolidine Dithiocarbamate, and Graphite-Furnace Atomic Absorption Spectrometry." Journal of AOAC INTERNATIONAL 70, no. 5 (1987): 866–70. http://dx.doi.org/10.1093/jaoac/70.5.866.

Full text
Abstract:
Abstract A graphite-furnace atomic absorption (GFAAS) method is described for determining total arsenic (organic and inorganic compounds) in foods. Samples ranging from 1 to 40 g (depending on moisture content) were digested with HN03 and dry-ashed at 500°C overnight after addition of MgO. After dissolution in HC1, the arsenic was reduced with iodide and ascorbic acid and precipitated with ammonium pyrrolidine dithiocarbamate (APDC) in the presence of nickel carrier. Precipitates were collected on 0.3/im cellulose acetate filters and dissolved in 10% HN03 containing modifier. Ba(N03)2 was adde
APA, Harvard, Vancouver, ISO, and other styles
9

Keane, H., A. Park, A. Sizeland, and A. Yuen. "HN03 METASTATIC PAROTID SQUAMOUS CELL CARCINOMA: A FACIAL NERVE PRESERVATIVE APPROACH." ANZ Journal of Surgery 77, s1 (2007): A37. http://dx.doi.org/10.1111/j.1445-2197.2007.04121_3.x.

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

Nabiollahy, K., F. Khormali, K. Bazargan, and SH Ayoubi. "Forms of K as a function of clay mineralogy and soil development." Clay Minerals 41, no. 3 (2006): 739–49. http://dx.doi.org/10.1180/0009855064130216.

Full text
Abstract:
AbstractThe relationships between different pools of K, i.e. exchangeable, HN03-extractable, mineral and total, were investigated as a function of clay mineralogy and soil development in soils of Kharkeh Research Station, Kurdestan Province, western Iran. Samples from different horizons often pedons were selected and analysed for clay mineralogy and K fractionation. X-ray diffraction patterns revealed that clay minerals in the soils studied were similar in type, while their abundances were different. The smectite content was significantly greater in Vertisols than in the other soils. The resul
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "HN03"

1

Dickens, Dustin. "Supercooling and Freezing of HNO3/H2O Aerosols." Thesis, University of Waterloo, 2000. http://hdl.handle.net/10012/1225.

Full text
Abstract:
The freezing kinetics of binary nitric acid/water aerosols is of fundamental importance to the modelling of polar stratospheric clouds and the role they in ozone depletion over the Arctic/Antarctic regions. Cirrus clouds are also often composed of nitric acid solutions, hence an understanding of freezing process in these aerosols also aids in modelling the earth's radiation budget and global warming. This thesis explores the kinetic phase diagram of nitric acid/water aerosols with sizes ranging between 0. 2 and 1. 5 mm in radius and concentrations ranging between pure water and 0. 45
APA, Harvard, Vancouver, ISO, and other styles
2

Samie, Farid. "HNO3-Induced Atmospheric Corrosion of Copper, Zinc and Carbon Steel." Doctoral thesis, Stockholm : Chemistry (Institutionen för kemi, Kungliga tekniska högskolan), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4194.

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

Nadolny, Margot. "Précipitation des molybdates mixtes zirconium-cérium/plutonium en milieu aqueux HNO3." Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10214.

Full text
Abstract:
Depuis 1993, un phénomène de précipitation mettant en jeu le molybdène et le zirconium (produits de fission) conduit à l’encrassement des équipements de dissolution des usines d’AREVA-La Hague. Le précipité formé, ZrMo2O7(OH)2(H2O)2, tend à inclure du plutonium(IV) ce qui impose une gestion de la criticité. La thèse a pour double objectif (i) d’étudier la composition du précipité dans des domaines plus riches en plutonium en prévision du recyclage de combustibles de type MOX ou RNR (ii) d’approfondir la connaissance des mécanismes d’inhibition de la précipitation. L’approche a consisté à carac
APA, Harvard, Vancouver, ISO, and other styles
4

Nadolny, Margot. "Précipitation des molybdates mixtes zirconium-cérium/plutonium en milieu aqueux HNO3." Electronic Thesis or Diss., Lille 1, 2017. http://www.theses.fr/2017LIL10214.

Full text
Abstract:
Depuis 1993, un phénomène de précipitation mettant en jeu le molybdène et le zirconium (produits de fission) conduit à l’encrassement des équipements de dissolution des usines d’AREVA-La Hague. Le précipité formé, ZrMo2O7(OH)2(H2O)2, tend à inclure du plutonium(IV) ce qui impose une gestion de la criticité. La thèse a pour double objectif (i) d’étudier la composition du précipité dans des domaines plus riches en plutonium en prévision du recyclage de combustibles de type MOX ou RNR (ii) d’approfondir la connaissance des mécanismes d’inhibition de la précipitation. L’approche a consisté à carac
APA, Harvard, Vancouver, ISO, and other styles
5

Oppel, Markus. "Quantenchemische und quantendynamische Rechnungen zur Schwingungsanregung und Photodissoziation von HNO3 durch ultrakurze Laserpulse." [S.l. : s.n.], 1998. http://darwin.inf.fu-berlin.de/1998/1/index.html.

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

Thibert, Emmanuel. "Thermodynamique et cinétique des solutions solides HCl-H2O et HNO3-H2O : implications atmosphériques." Phd thesis, Université Joseph Fourier (Grenoble), 1996. http://tel.archives-ouvertes.fr/tel-00755697.

Full text
Abstract:
Le but de notre travail est de contribuer à la compréhension des interactions entre les gaz acides et la glace, à la fois pendant la phase atmosphérique de la glace, c'est à dire dans les nuages, et dans la neige après dépôt au sol. Les gaz polaires en général, et les acides en particulier, interagissent fortement avec la glace dans la quelle ils peuvent se dissoudre. Dans les nuages, ces interactions peuvent modifier fortement la composition de l'air, et ce point reste une inconnue majeure en chimie atmosphérique. La compréhension de la relation entre la composition de l'air et celle de la gl
APA, Harvard, Vancouver, ISO, and other styles
7

Скляров, Юрій Петрович. "Дослідження акустичної ралаксації і в"язко-пружних властивостей водних розчинів HNO3, 1iNO3 та NANo3". Дис. канд. фіз.-мат. наук, КУ ім. Т.Шевченка, 1996.

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

Racineux, Guillaume. "Rheologie des pates minerales : cas du melange tio2 - hno3 destine a l'extrusion de supports de catalyseurs." Cachan, Ecole normale supérieure, 1999. http://www.theses.fr/1999DENS0002.

Full text
Abstract:
Certains supports de catalyseurs de l'industrie petrochimique, a haute surface specifique, sont fabriques par extrusion d'une pate de dioxyde de titane proche de l'empilement compact (60% de poudre de tio 2 et 40% de liant acide). Des defauts d'ecoulement limitant parfois l'utilisation du procede, ce travail de these a pour objet la caracterisation, la modelisation et l'identification du comportement de ce materiau. - le premier point cle concerne la caracterisation du comportement rheologique. Nous avons realise deux types d'essais : l'essai capillaire, representatif de la rheologie des polym
APA, Harvard, Vancouver, ISO, and other styles
9

De, Sio Stéphanie. "Modélisation de l'extraction de Pu(IV) et spéciation de HNO3 dans le traitement du combustible irradié." Thesis, Montpellier 2, 2012. http://www.theses.fr/2012MON20068.

Full text
Abstract:
En France, le traitement des combustibles nucléaires irradiés repose sur le procédé PUREX au cours duquel l'uranium et le plutonium sont extraits sélectivement par le TBP à partir d'une solution aqueuse concentrée d'acide nitrique. L'objectif de ce travail de thèse était d'aboutir à une meilleure modélisation des milieux de traitement du combustible irradié. Dans un premier temps, des mesures Raman et RMN 14N, couplées à des calculs basés sur la théorie des solutions simples et sur le modèle BIMSA, ont permis de compléter les connaissances actuelles sur la dissociation de l'acide nitrique dans
APA, Harvard, Vancouver, ISO, and other styles
10

Vallet, Véronique. "Regulation transcriptionnelle de genes exprimes specifiquement dans des cellules epitheliales renales et hepatiques : role de la proteine nucleaire hnf3." Paris 11, 1996. http://www.theses.fr/1996PA11T004.

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

Books on the topic "HN03"

1

Mackey, Stephen. HN13 - Stephen Mackey Angel Christmas Cards. Peaceable Kingdom Press, 2005.

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

National Aeronautics and Space Administration (NASA) Staff. Participation of Hno3 Cims Instrument in the Sage III Ozone Loss and Validation Experiment (Solve). Independently Published, 2018.

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

CAPITALISM AND MODERNITY: THE GREAT DEBATE. POLITY PRESS, 2004.

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

Panigrahi, Muktikanta, and Arpan Kumar Nayak. Polyaniline based Composite for Gas Sensors. IOR PRESS, 2021. http://dx.doi.org/10.34256/ioriip212.

Full text
Abstract:
In this research work, we have demonstrated the synthesis, spectroscopic characteristics, thermal behaviour and DC conductivity of a few nanostructured composites, substituted conducting polymers (ICPs) and composites of ICPs. The physical properties of aforementioned composites are significantly changed by the doping with HCl, H2SO4, HNO3, H3PO4, or acrylic acid. The charge transport properties of these polymeric materials have been studied in detail because of their potential application in gas sensors. In the current work, varieties of conducting polymer based materials such as PANI-ES/Cloi
APA, Harvard, Vancouver, ISO, and other styles
5

Wallerstein, Immanuel Maurice. World-Systems Analysis: An Introduction (A John Hope Franklin Center Book). Duke University Press, 2004.

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

Wallerstein, Immanuel Maurice. World-Systems Analysis: An Introduction. Duke University Press, 2004.

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

World-Systems Analysis: An Introduction. Duke University Press, 2004.

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

World-Systems Analysis: An Introduction. Duke University Press, 2012.

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

Book chapters on the topic "HN03"

1

Legrand, Michel, Anne Léopold, and Florent Dominé. "Acidic Gases (HCl, HF, HN03, HCOOH, and CH3COOH): A Review of Ice Core Data and Some Preliminary Discussions on their Air-Snow Relationships." In Chemical Exchange Between the Atmosphere and Polar Snow. Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-61171-1_2.

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

Lin, Wang, Xu Dan, Feng Jianxin, Cui Hanlong, Wang Wenhui, and Zhu Yingxi. "Solid-Liquid Equilibria of Ternary Systems UO2(NO3)2 + HNO3 + H2O and UF4 + HF + H2O at 298 K." In Springer Proceedings in Physics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1023-6_42.

Full text
Abstract:
AbstractUO2(NO3)2 and UF4 are significant intermediates that connect different chemical unit operations (such as dissolution, evaporation, concentration, extraction and etc.) in uranium chemical industry. Commonly, there is a basic physicochemical question about phase equilibrium of ternary systems UO2(NO3)2 + HNO3 + H2O and UF4 + HF + H2O, it is crucial to understand the phase behavior and thermodynamic properties of them with the continuous development of uranium chemical industry. In this study, solid-liquid phase equilibria of ternary systems UO2(NO3)2 + HNO3 + H2O and UF4 + HF + H2O at 29
APA, Harvard, Vancouver, ISO, and other styles
3

Vogt, J. "793 HNO3 Nitric acid." In Asymmetric Top Molecules. Part 3. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-14145-4_215.

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

Vogt, J. "794 HNO3 Peroxynitrous acid." In Asymmetric Top Molecules. Part 3. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-14145-4_216.

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

Hirota, E., K. Kuchitsu, T. Steimle, J. Vogt, and N. Vogt. "142 HNO3 Peroxynitrous acid." 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_143.

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

Holze, Rudolf. "Ionic conductivities of HNO3." In Electrochemistry. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49251-2_319.

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

Holze, Rudolf. "Ionic conductance of HNO3." In Electrochemistry. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49251-2_875.

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

Jain, M., and A. Gupta. "1559 Diamagnetic susceptibility of HNO3." In Diamagnetic Susceptibility and Anisotropy of Inorganic and Organometallic Compounds. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-44694-1_1560.

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

Jain, M., and A. Gupta. "811 Diamagnetic susceptibility of HNO3." In Diamagnetic Susceptibility and Anisotropy of Inorganic and Organometallic Compounds. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-44694-1_812.

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

Holze, Rudolf. "Ionic conductance of N2O5-HNO3." In Electrochemistry. Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-49251-2_1137.

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

Conference papers on the topic "HN03"

1

Köhler, M., U. Heubner, K. W. Eichenhofer, and M. Renner. "Alloy 33: A New Material for the Handling of HNO3 / HF Media in Reprocessing of Nuclear Fuel." In CORROSION 1997. NACE International, 1997. https://doi.org/10.5006/c1997-97115.

Full text
Abstract:
Abstract Alloy 33, an austenitic 33Cr-32Fe-31Ni-1.6Mo-0.6Cu-0.4N material shows excellent resistance to corrosion when exposed to highly oxidizing media as e.g. HN03 and HN03/HF mixtures which are encountered in reprocessing of nuclear fuel. According to the test results available so far, resistance to corrosion in boiling azeotropic (67%) HNO3 is about 6 and 2 times superior to AISI 304 L and 310 L. In higher concentrated nitric acid it can be considered corrosion resistant up to 95% HNO3 at 25° C (77° F), up to 90% HNO3 at 50° C (122° F) and up to somewhat less than 85% HN03 at 75°C (167° F)
APA, Harvard, Vancouver, ISO, and other styles
2

Kolman, D. G., D. K. Ford, D. P. Butt, and T. O. Nelson. "Corrosion of 304 Stainless Steel Exposed to Nitric Acid - Chloride Environments." In CORROSION 1997. NACE International, 1997. https://doi.org/10.5006/c1997-97125.

Full text
Abstract:
Abstract In an effort to examine the combined effect of HNO3, NaCl, and temperature on the general corrosion behavior of 304 stainless steel (SS), electrochemical studies were performed. It was found that the corrosion response of 304 SS was bifurcated: materials were either continuously passive following immersion or spontaneously passivated following a period of active dissolution. Active dissolution was demonstrated to be autocatalytic, with the corrosion rate increasing exponentially with time and potential. The period of active corrosion terminated following spontaneous passivation, resul
APA, Harvard, Vancouver, ISO, and other styles
3

Jahangiri, N., A. G. Raraz, J. E. Indacochea, and S. M. McDeavitt. "UREX+ Centrifugal Contactor Corrosion in HNO3-HF Aqueous Solutions." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10234.

Full text
Abstract:
Abstract The UREX+ is an advanced solvent extraction process under development to separate uranium from nuclear waste. This operation utilizes 304L stainless steel (SS) centrifugal contactors. The contactor is exposed to two different fluids that flow continuously; these are aqueous and organic solutions which are identified also as phases. These two solutions are ultimately separated at the end but during the process they form different mixtures at several regions under various hydrodynamic conditions. Our investigation focuses on the corrosion of the stainless steel in acidic aqueous solutio
APA, Harvard, Vancouver, ISO, and other styles
4

Mayuzumi, M., J. Ohta, K. Kako, and E. Kawakami. "Effect of Various Impurities on the Transpassive Corrosion of High Purity Fe-18Cr-14Ni Alloys." In CORROSION 2001. NACE International, 2001. https://doi.org/10.5006/c2001-01142.

Full text
Abstract:
Abstract The effects of C, P, S, and N on the transpassive corrosion of high purity(HP) Fe-18Cr-14Ni alloys were studied in 13 kmolm−3 [0.36 kmol/ft3] nitric acid(HNO3) and 13 kmolm−3 HNO3 containing ceric(Ce4+) ions. Alloy specimens of 99.99 % purity were fabricated by a cold-crucible method in argon(Ar) gas atmosphere to prevent contamination and used to isolate the effect of each target element. The results showed that C and P were the responsible elements for transpassive intergranular corrosion in 13 kmolm−3 HNO3. The critical concentrations, preventing intergranular corrosion, were less
APA, Harvard, Vancouver, ISO, and other styles
5

Mayuzumi, M., J. Ohta, K. Kako, and E. Kawakami. "Effect of Si and Mn Addition on the Transpassive Corrosion Behavior of High Purity Fe-18Cr-14Ni Alloys." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00192.

Full text
Abstract:
Abstract The effects of silicon (Si) and manganese (Mn) on the transpassive corrosion of high purity Fe-18Cr- 14 Ni alloy were studied in 13 kmolm-3 nitric acid (HNO3) and 13 kmolm-3 HNO3 containing ceric (Ce4+) ions. Alloy specimens of 99.99 % purity were fabricated by a cold-crucible method in argon (Ar) gas atmosphere to prevent contamination and used to isolate the effect of each target element. The results showed that Si and Mn were not the main cause of intergranular corrosion of the alloy in 13 kmolm-3 HNO3. In 13 kmolm-3 HNO3containing Ce4+ ions, Si both accelerated (at concentration o
APA, Harvard, Vancouver, ISO, and other styles
6

Maguire, M. A., and T. L. Yau. "Corrosion-Electrochemical Properties of Zirconium in Mineral Acids." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86265.

Full text
Abstract:
Abstract Polarization behavior of commercially pure zirconium was investigated in 5-37% hydrochloric (HCl), 10-72.5% sulfuric (H2SO4), 10-70% phosphoric (H3PO4), and 10-90% nitric (HNO3) acids at temperatures approaching atmospheric boiling using a cyclic potentiodynamic technique. The scan rate was 0.6 V/hr over a potential range of -0.80 to 1.5 VSCE. Four types of behavior were observed; Type I, complete passivity, Type II, passivity below a potential limit, Type III, potential dependent kinetics, and Type IV, a less passive state occurring as a transition between Type II and Type III. Zirco
APA, Harvard, Vancouver, ISO, and other styles
7

Sufriadin, Sufriadin, Malyanus Yepta, and Akmal Saputno. "The Effect of Pre-Roasting on the Atmospheric HCl and HNO<sub>3</sub> Leaching of Ni, Co, and Fe from Sorowako Limonite Ore, Sulawesi, Indonesia." In International Conference on Research in Engineering and Science Technology (IC-REST) 2023. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-kj5tns.

Full text
Abstract:
An atmospheric leaching of a limonite ore from Soroako, Sulawesi, Indonesia, has been performed using hydrochloric acid (HCl) and nitric acid HNO3 solutions. The study's objectives are to determine the effect of pre-roasting the laterite ore sample on the dissolution behavior and to compare the leaching efficiency of metals (Ni, Co, and Fe) from limonite under HCl and HNO3 lixiviants. The sample was characterized using optical microscopic, X-ray diffraction (XRD), X-ray fluorescence (XRF), and atomic absorption spectrometry (AAS) methods. Heating the ore at 300 °C has transformed goethite into
APA, Harvard, Vancouver, ISO, and other styles
8

Yau, T. L. "Factors Affecting the Stress Corrosion Cracking Susceptibility of Zirconium in 90% Nitric Acid." In CORROSION 1987. NACE International, 1987. https://doi.org/10.5006/c1987-87170.

Full text
Abstract:
Abstract U-bend, C-ring, and slow strain-rate tests have been performed to evaluate the effects of texture, stress, surface condition, heat treatment, electrochemical potential, and strain rate on stress corrosion cracking (SCC) of zirconium in 90% nitric acid at room temperatures. It has been shown that careful control of texture, surface condition (scratching, cleaning and oxide coating), and/or applied stress can effectively lead to the prevention of SCC of zirconium in 90% HNO3. Heat treating at 760°C, 880°C, or 1000°C does not seem to improve the SCC resistance. However, if the potential
APA, Harvard, Vancouver, ISO, and other styles
9

Jauhari, Smita, Kinnari Parekh, and R. V. Upadhyay. "Corrosion Inhibition of Mild Steel in Acidic Media Using a Nanomagnetic Fluid as a Novel Corrosion Inhibitor." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11381.

Full text
Abstract:
Abstract Nanomagnetic fluid, a novel material comprising of ferromagnetic nanoparticles, has been evaluated as a corrosion inhibitor. Corrosion behavior of carbon steel in 0.1M HNO3 has been studied as a function of various concentrations of aqueous nanomagnetic fluid. The novel nanomagnetic fluid has been specially synthesized to achieve the stability in acidic media when it is mixed with HNO3 This nanomagnetic fluid has been evaluated by gravimetric and polarization measurement techniques. It was observed that the inhibition efficiency increases with the increase in the nanomagnetic fluid co
APA, Harvard, Vancouver, ISO, and other styles
10

Norby, Brad C. "Improved Corrosion Resistance of UNS N06030 in Nitric/Hydrofluoric Acid Solutions by Welding with a Dissimilar Weld Wire." In CORROSION 1992. NACE International, 1992. https://doi.org/10.5006/c1992-92107.

Full text
Abstract:
Abstract When welding N06030, secondary phases form in the weld metal. These phases cause the weld metal to be preferentially attacked in nitric acid (HNO3) solutions contaminated with minor amounts of hydrofluoric acid (HF). A post-weld solution anneal and water quench is necessary to assure that these phases redissolve into the solid. When a post weld solution anneal and water quench is not feasible, improved corrosion resistance can be obtained by welding with a weld wire that has more chromium than the base material (ER NiCr-4, AWS number is pending). When welding N06030 with a dissimilar
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "HN03"

1

Hochman, Ayala, Thomas Nash III, and Pamela Padgett. Physiological and Biochemical Characterization of the Effects of Oxidant Air Pollutants, Ozone and Gas-phase Nitric Acid, on Plants and Lichens for their Use as Early Warning Biomonitors of these Air Pollutants. United States Department of Agriculture, 2011. http://dx.doi.org/10.32747/2011.7697115.bard.

Full text
Abstract:
Introduction. Ozone and related oxidants are regarded as the most important phytotoxic air pollutant in many parts of the western world. A previously unrecognized component of smog, nitric acid, may have even greater deleterious effects on plants either by itself or by augmenting ozone injury. The effects of ozone on plants are well characterized with respect to structural and physiological changes, but very little is known about the biochemical changes in plants and lichens exposed to ozone and/or HNO3. Objectives.To compare and contrast the responses of crop plants and lichens to dry deposit
APA, Harvard, Vancouver, ISO, and other styles
2

Balazs, B., Z. Chiba, P. Hsu, P. Lewis, L. Murguia, and M. Adamson. Destruction of hazardous and mixed wastes using mediated electrochemical oxidation in a Ag(II)HNO3 bench scale system. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/611759.

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

Todd T. Nichols and Dean D. Taylor. Thermodynamic Phase And Chemical Equilibrium At 0-110?C For The H+-K+-Na+-Cl--H2O System Up To 16 Molal And The HNO3-H2O System Up To 20 Molal Using An Association-Based Pitzer Model Compatible With ASPEN Plus. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/911440.

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

Nichols, T. T., and D. D. Taylor. Thermodynamic Phase And Chemical Equilibrium At 0-110 C For The H+-K+-Na+-Cl--H2O System Up To 16 Molal And The HNO3-H2O System Up To 20 Molal Using An Association-Based Pitzer Model Compatible With ASPEN Plus. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/819868.

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!