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Kinetics and Mechanism of Polythionate Oxidation to Sulfate at Low Ph by O2 and Fe3+
Geochimica et Cosmochimica Acta, Vol. 67, No. 23, pp. 4457–4469, 2003 Copyright © 2003 Elsevier Ltd Pergamon Printed in the USA. All rights reserved 0016-7037/03 $30.00 ϩ .00 doi:10.1016/S0016-7037(03)00388-0 3؉ Kinetics and mechanism of polythionate oxidation to sulfate at low pH by O2 and Fe 1, 2 1,2 GREGORY K. DRUSCHEL, *ROBERT J. HAMERS, and JILLIAN F. BANFIELD † 1Departments of Geology and Geophysics and 2Chemistry, University of Wisconsin-Madison, Madison, WI 53706 USA (Received October 16, 2002; accepted in revised form May 30, 2003) 2Ϫ Abstract—Polythionates (SxO6 ) are important in redox transformations involving many sulfur compounds. Here we investigate the oxidation kinetics and mechanisms of trithionate and tetrathionate oxidation between pH 0.4 and pH 2 in the presence of Fe3ϩ and/or oxygen. In these solutions, Fe3ϩ plus oxygen oxidizes tetrathionate and trithionate at least an order of magnitude faster than oxygen alone. Kinetic measurements, coupled with density functional calculations, suggest that the rate-limiting step for tetrathionate oxidation involves Fe3ϩ attachment, followed by electron density shifts that result in formation of a sulfite radical and 0 S3O3 derivatives. The overall reaction orders for trithionate and tetrathionate are fractional due to rearrange- ment reactions and side reactions between reactants and intermediate products. The pseudo-first order rate coefficients for tetrathionate range from 10Ϫ11 sϪ1 at 25°C to 10Ϫ8 sϪ1 at 70°C, compared to 2 ϫ 10Ϫ7 sϪ1 Ϯ at 35 °C for trithionate. The apparent activation energy (EA) for tetrathionate oxidation at pH 1.5 is 104.5 4.13 kJ/mol. -
Cyclodextrin-Based Rotaxanes for Material Science Applications
Cyclodextrin-Based Rotaxanes for Material Science Applications A thesis submitted for admission to the degree of Doctor of Philosophy By Hwi Young Lee Australian INcUIUMcll University Research School of Chemistry Canberra, Australia April, 2014 Author’s Statement This is to declare that the work in this thesis represents original work that I have undertaken during my PhD degree at the Research School of Chemistry, the Australian National University from 2010 to 2014, except the synthesis and X-ray crystal analysis of the compounds 4.1 and 4.2, and the synthesis of compounds 4.4 and 4.5, which was carried out as part of my PhB Honours degree. To my best of knowledge, the thesis does not contain material that has been published or written by another person or accepted for the award of any other degree of diploma in any other university or tertiary institution, unless due reference has been made in the text. I give consent to this copy of my thesis, when deposited in the University library, being available for loan or photocopying. April 2014 l Acknowledgements I would like to express my most sincere gratitude to my supervisor, Prof. Christopher J. Easton. This work would not have been possible without his guidance, patience and understanding. I appreciate the time and energy you put into students' academic excellence and personal welfare. I am also grateful that you have never stopped providing me with challenges and inspiration. I am extremely grateful to Dr Hideki Onagi for introducing me to cyclodextrin chemistry. I appreciate your willingness to sacrifice your lunch breaks, late evenings and even weekends to share your expertise. -
Deracemization of Sodium Chlorate with Or Without the Influence of Sodium Dithionate Manon Schindler
Deracemization of sodium chlorate with or without the influence of sodium dithionate Manon Schindler To cite this version: Manon Schindler. Deracemization of sodium chlorate with or without the influence of sodium dithionate. Cristallography. Normandie Université, 2020. English. NNT : 2020NORMR004. tel- 02521046v2 HAL Id: tel-02521046 https://tel.archives-ouvertes.fr/tel-02521046v2 Submitted on 15 May 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. THÈSE Pour obtenir le diplôme de doctorat Spécialité Physique Préparée au sein de l’Université de Rouen Normandie Deracémisation du chlorate de sodium avec et sans l’influence du dithionate de sodium Présentée et soutenue par Manon SCHINDLER Thèse soutenue publiquement le 13 mars 2020 devant le jury composé de Mme. Elizabeth HILLARD Dr. Hab. Université de Bordeaux Rapporteur M. Elias VLIEG Pr. Université Radboud de Nimègue Rapporteur Mme. Sylvie MALO Pr. Université de Caen Normandie Présidente M. Woo Sik KIM Pr. Université Kyung Hee de Séoul Examinateur M. Gérard COQUEREL Pr. Université de Rouen Normandie Directeur de thèse Thèse dirigée par Gérard COQUEREL, professeur des universités au laboratoire Sciences et Méthodes Séparatives (EA3233 SMS) THÈSE Pour obtenir le diplôme de doctorat Spécialité Physique Préparée au sein de l’Université de Rouen Normandie Deracemization of sodium chlorate with or without the influence of sodium dithionate Présentée et soutenue par Manon SCHINDLER Thèse soutenue publiquement le 13 mars 2020 devant le jury composé de Mme. -
Bilkent-Graduate Catalog 0.Pdf
ISBN: 978-605-9788-11-3 bilkent.edu.tr ACADEMIC OFFICERS OF THE UNIVERSITY Ali Doğramacı, Chairman of the Board of Trustees and President of the University CENTRAL ADMINISTRATION DEANS OF FACULTIES Abdullah Atalar, Rector (Chancellor) Ayhan Altıntaş, Faculty of Art, Design, and Architecture (Acting) Adnan Akay, Vice Rector - Provost Mehmet Baray, Faculty of Education (Acting) Kürşat Aydoğan, Vice Rector Ülkü Gürler, Faculty of Business Administration (Acting) Orhan Aytür, Vice Rector Ezhan Karaşan, Faculty of Engineering Cevdet Aykanat, Associate Provost Hitay Özbay, Faculty of Humanities and Letters (Acting) Hitay Özbay, Associate Provost Tayfun Özçelik, Faculty of Science Özgür Ulusoy Associate Provost Turgut Tan, Faculty of Law Erinç Yeldan, Faculty of Economics, Administrative, and Social Sciences (Acting) GRADUATE SCHOOL DIRECTORS Alipaşa Ayas, Graduate School of Education [email protected] Halime Demirkan, Graduate School of Economics and Social Sciences [email protected] Ezhan Karaşan, Graduate School of Engineering and Science [email protected] DEPARTMENT CHAIRS and PROGRAM DIRECTORS Michelle Adams, Neuroscience [email protected] Adnan Akay, Mechanical Engineering [email protected] M. Selim Aktürk, Industrial Engineering [email protected] Orhan Arıkan, Electrical and Electronics Engineering [email protected] Fatihcan Atay, Mathematics [email protected] Pınar Bilgin, Political Science and Public Administration [email protected] Hilmi Volkan Demir, Materials Science and Nanotechnology [email protected] Oğuz Gülseren, Physics [email protected] Ahmet Gürata, Communication and Design [email protected] Meltem Gürel, Architecture [email protected] Refet Gürkaynak, Economics [email protected] Ülkü Gürler, Business Administration (Acting) [email protected] H. -
WO 2012/024294 Al
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date Λ 23 February 2012 (23.02.2012) WO 2012/024294 Al (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every C22B 47/00 (2006.01) kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, (21) International Application Number: CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, PCT/US201 1/047916 DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, (22) International Filing Date: HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, 16 August 201 1 (16.08.201 1) KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, (25) Filing Language: English NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, (26) Publication Language: English SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, (30) Priority Data: ZW. 61/374,691 18 August 2010 (18.08.2010) US (84) Designated States (unless otherwise indicated, for every (71) Applicant (for all designated States except US): AMER¬ kind of regional protection available): ARIPO (BW, GH, ICAN MANGANESE INC. [CA/US]; 2533 North Car GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, son Street, Suite 3913, Carson City, NV 89706 (US). -
Safety Data Sheet
World Headquarters Hach Company P.O.Box 389 MSDS No: M00107 Loveland, CO USA 80539 (970) 669-3050 SAFETY DATA SHEET _____________________________________________________________________________ 1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION Product Name: Hydrosulfite Reagent for Total Copper Catalog Number: 2118869 Hach Company Emergency Telephone Numbers: P.O.Box 389 (Medical and Transportation) Loveland, CO USA 80539 (303) 623-5716 24 Hour Service (970) 669-3050 (515)232-2533 8am - 4pm CST MSDS Number: M00107 Chemical Name: Dithionous acid, disodium salt CAS Number: 7775-14-6 Additional CAS No. (for hydrated forms): Not applicable Chemical Formula: Na2S2O4 Chemical Family: Reducing Agent Intended Use: Laboratory Use _____________________________________________________________________________ 2. HAZARDS IDENTIFICATION GHS Classification: Hazard categories: Self Heating: Self-heat. 1 Acute Toxicity: Acute Tox. 4-Orl . Serious Eye Damage/Eye Irritation:Eye Irrit. 2 Specific Target Organ Toxicity - Single Exposure: STOT SE 3 Hazardous to the Aquatic Environment: Aquatic Chronic 3 GHS Label Elements: DANGER Hazard statements: Self-heating: maycatch fire. Harmful if swallowed. Causes serious eye irritation. May cause respiratory irritation. Harmful to aquatic life with long lasting effects. Precautionary statements: Avoid breathing dust/fume/gas/mist/vapours/spray. Handle environmental release according to local, state, federal, provincial requirements. Wear eye protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention. IF INHALED: Remove victim/person to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER or doctor/physician if you feel unwell. IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. -
Chemical Names and CAS Numbers Final
Chemical Abstract Chemical Formula Chemical Name Service (CAS) Number C3H8O 1‐propanol C4H7BrO2 2‐bromobutyric acid 80‐58‐0 GeH3COOH 2‐germaacetic acid C4H10 2‐methylpropane 75‐28‐5 C3H8O 2‐propanol 67‐63‐0 C6H10O3 4‐acetylbutyric acid 448671 C4H7BrO2 4‐bromobutyric acid 2623‐87‐2 CH3CHO acetaldehyde CH3CONH2 acetamide C8H9NO2 acetaminophen 103‐90‐2 − C2H3O2 acetate ion − CH3COO acetate ion C2H4O2 acetic acid 64‐19‐7 CH3COOH acetic acid (CH3)2CO acetone CH3COCl acetyl chloride C2H2 acetylene 74‐86‐2 HCCH acetylene C9H8O4 acetylsalicylic acid 50‐78‐2 H2C(CH)CN acrylonitrile C3H7NO2 Ala C3H7NO2 alanine 56‐41‐7 NaAlSi3O3 albite AlSb aluminium antimonide 25152‐52‐7 AlAs aluminium arsenide 22831‐42‐1 AlBO2 aluminium borate 61279‐70‐7 AlBO aluminium boron oxide 12041‐48‐4 AlBr3 aluminium bromide 7727‐15‐3 AlBr3•6H2O aluminium bromide hexahydrate 2149397 AlCl4Cs aluminium caesium tetrachloride 17992‐03‐9 AlCl3 aluminium chloride (anhydrous) 7446‐70‐0 AlCl3•6H2O aluminium chloride hexahydrate 7784‐13‐6 AlClO aluminium chloride oxide 13596‐11‐7 AlB2 aluminium diboride 12041‐50‐8 AlF2 aluminium difluoride 13569‐23‐8 AlF2O aluminium difluoride oxide 38344‐66‐0 AlB12 aluminium dodecaboride 12041‐54‐2 Al2F6 aluminium fluoride 17949‐86‐9 AlF3 aluminium fluoride 7784‐18‐1 Al(CHO2)3 aluminium formate 7360‐53‐4 1 of 75 Chemical Abstract Chemical Formula Chemical Name Service (CAS) Number Al(OH)3 aluminium hydroxide 21645‐51‐2 Al2I6 aluminium iodide 18898‐35‐6 AlI3 aluminium iodide 7784‐23‐8 AlBr aluminium monobromide 22359‐97‐3 AlCl aluminium monochloride -
Volume 2: Prizes and Scholarships
RESEARCH OPPORTUNITIES ALERT! ISSUE 12: VOLUME 2 (Prizes & Scholarships) A Compilation by the Research Services Unit Office of Research, Innovation and Development (ORID) January 2013 Issue 12: Volume 2 – Prizes & Scholarships JANUARY 2013 MITHSONIAN FELLOWSHIPS Smithsonian Institution S Description: In addition to receiving scholarships, fellows The Smithsonian Institution invites applications will be provided with space to conduct their for its Smithsonian fellowships. These provide research within the department they are opportunities for graduate students, working. An allowance of up to US$4,000 may predoctoral students, and postdoctoral and be available to assist the fellow with research- senior investigators to conduct research in related expenses, and funding towards association with members of the Smithsonian relocation may be provided. professional research staff, and to utilise the resources of the institution. Proposals must reflect one or more of the four grand challenges Closing date: 15 Jan 13 identified by the Smithsonian strategic plan, Deadline information: This call is repeated which include unlocking the mysteries of the once a year. universe; understanding and sustaining a Posted date: 30 Oct 12 biodiverse planet; valuing world cultures; and Award type: Mid-Career fellowships, Senior understanding the American experience. Four fellowships, Predoctoral fellowships, types of fellowships are available: Financial aid for postgraduate students Award amount max: $54,000 graduate student fellowships support Award amount -
Regolith Weathering and Sorption Influences Molybdenum, Vanadium, and Chromium Export Via Stream Water at Four Granitoid Critica
feart-06-00193 November 8, 2018 Time: 16:14 # 1 ORIGINAL RESEARCH published: 09 November 2018 doi: 10.3389/feart.2018.00193 Regolith Weathering and Sorption Influences Molybdenum, Vanadium, and Chromium Export via Stream Water at Four Granitoid Critical Zone Observatories Justin B. Richardson1,2* and Elizabeth K. King3 1 Department of Geosciences, University of Massachusetts Amherst, Amherst, MA, United States, 2 Earth and Atmospheric Sciences, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, United States, 3 Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia, Vancouver, BC, Canada Understanding the fate of oxyanions in the Critical Zone is important because of Edited by: their biological significance and the potential for their use as geochemical tracers in Julia Perdrial, University of Vermont, United States terrestrial environments and subsurface systems. This study assessed the partitioning Reviewed by: and transport of a suite of oxyanion metals (Mo, V, and Cr) in regolith profiles and stream Angelica Vazquez-Ortega, waters from four granitoid Critical Zone Observatories (CZOs) (Boulder Creek, Calhoun, Bowling Green State University, United States Luquillo, and Southern Sierra). For regolith profiles, we compared Mo, V, and Cr in Dragos George Zaharescu, total digestions and two extractions targeting oxyanions adsorbed to organic matter Georgia Institute of Technology, and amorphous oxides (H O C 0.1 M acetic acid) and secondary Fe oxides (citrate– United States 2 2 bicarbonate–dithionite). Total Mo, V, and Cr ranged from 0.4 to 2.5 mg kg−1, 16 to *Correspondence: −1 −1 Justin B. Richardson 208 mg kg , and 0.2 to 55 mg kg , respectively. -
FY2011 WPI Project Progress Report (Post-Interim Evaluation)
World Premier International Research Center Initiative (WPI) FY2011 WPI Project Progress Report (Post-Interim Evaluation) Host Institution Tohoku University Host Institution Head Susumu Satomi Research Center WPI Advanced Institute for Materials Research Center Director Motoko Kotani Common instructions: * Unless otherwise specified, prepare this report from the timeline of 31 March 2012. * So as to base this fiscal year’s follow-up review on the document ”Post-interim evaluation revised center project,” please prepare this report from the perspective of the revised project. * Use yen (¥) when writing monetary amounts in the report. If an exchange rate is used to calculate the yen amount, give the rate. Summary of State of WPI Center Project Progress (write within the space of this page) In FY2011, AIMR established a research environment to promote mathematics – materials science collaboration by expanding the Mathematics Unit, setting the three target projects, and establishing new types of researcher positions for the collaboration. These attempts were performed as part of the introduction of a new system towards progress from FY2012, and led to the following achievements. “Conducting research of the highest world level” The level of research at AIMR in the materials field has always been the highest in the world. In FY2011, AIMR’s full-time PIs and their co-workers published 209 papers, with many appearing in high-impact journals such as Nature, Science, Nature Materials, and so on. They gave 117 invited presentations at international meetings, playing active roles in the global arena. External research funds increased in FY2011 (about 2.8 billion yen), indicating the world’s high evaluation of AIMR’s science level. -
United States Patent (19. 11) 4,059,533 Watson Et Al
United States Patent (19. 11) 4,059,533 Watson et al. 45 Nov. 22, 1977 (54) OXYGENSCAVENGING METHODS AND 3,399,725 9/1968 Pye ....................................... 166/275 ADDITIVES 3,852,201 12/1974 Jackson ................................. 252/8.5 (75 Inventors: Jimmie L. Watson; Leroy L. Carney, FOREIGN PATENT DOCUMENTS both of Duncan, Okla. 6,414,645 6/1965 Netherlands .......................... 252/8.5 (73) Assignee: Halliburton Company, Duncan, Okla. OTHER PUBLICATIONS (21) Appl. No.: 518,306 The Merck Index, Eighth Edition, Published 1968 by 22 Filed: Oct. 29, 1974 - Merck and Co., Inc., pp. 958 and 960. 51) Int. Cl.2 ....... e o os see s see a woo C09K 7/02; C09K 7/04; Primary Examiner-Herbert B. Guynn E21B 43/22; CO1B 17/66 Attorney, Agent, or Firm-Robert S. Nisbett; Thomas R. 52 U.S. C. ................................... 252/8.5A; 175/64; Weaver; John H. Tregoning 252/8.5 B; 252/8.55 B; 252/188 58) Field of Search .............. 252/8.5 A, 8.5 B, 8.5 C, 57 ABSTRACT 252/8.55 D, 188; 166/279, 310, 175/64; This invention relates to methods and additives for 423/515, 512 R, 265 scavenging oxygen dissolved and entrained in liquids (56) References Cited which are particularly suitable for removing dissolved and entrained oxygen from polymer-containing fluids U.S. PATENT DOCUMENTS used in drilling and completing well bores as well as 1,810,663 6/1931 Kritchevsky et al................ 252/188 water flood and other procedures carried out in the oil 1,810,665 6/1931 Kritchevsky et al. -
Curriculum Vitae
Curriculum Vitae April 6, 2018 Name: Susumu KITAGAWA Date of birth: July 4, 1951 Title: Distinguished Professor, PhD (KUIAS) Director, Institute for Integrated Cell-Material Sciences (iCeMS) Affiliation: Kyoto University Institute for Advanced Study (KUIAS) Institute for Integrated Cell-Material Sciences, (iCeMS), Kyoto University Yoshida Ushinomiya-cho, Sakyo-ku, Kyoto 606-8501, Japan Telephone, FAX, Email, Website: TEL: +81-75-753-9740, FAX: +81-75-753-9742 Email: [email protected] Homepage: http://www.kitagawa.icems.kyoto-u.ac.jp Education: 1975-1979 Kyoto University, Graduate School, Hydrocarbon Chemistry, PhD degree 1971-1974 Kyoto University, Undergraduate course, Hydrocarbon Chemistry Professional Appointments: 2017-Present Distinguished Professor, PhD 2016-2017 Deputy Director-General (KUIAS) 2013-Present Director, Institute for Integrated Cell-Material Sciences, Kyoto University 2007-2012 Deputy Director, Institute for Integrated Cell-Material Sciences, Kyoto University 1998-2016 Professor, Department of Synthetic Chemistry & Biological Chemistry, Kyoto University 1992-1998 Professor, Department of Chemistry, Tokyo Metropolitan University 1988-1992 Associate Professor, Department of Chemistry, Kinki University 1986-1987 Visiting Scientist, Department of Chemistry, Texas A & M University F. A. Cotton Laboratory 1983-1988 Lecturer, Department of Chemistry, Kinki University 1979-1983 Assistant Professor, Department of Chemistry, Kinki University Award: 2017 Chemistry for the Future Solvay Prize 2017 2017 Clarivate Analytics