Passivated Iodine Pentoxide Oxidizer for Potential Biocidal Nanoenergetic Applications Jingyu Feng, Guoqiang Jian, Qing Liu, and Michael R
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Iodine Oxoacids in Atmospheric Aerosol Formation – from Chamber Simulations to Field Observations
REPORT SERIES IN AEROSOL SCIENCE No. 239 (2021) IODINE OXOACIDS IN ATMOSPHERIC AEROSOL FORMATION – FROM CHAMBER SIMULATIONS TO FIELD OBSERVATIONS XU-CHENG HE (何旭成) Institute for Atmospheric and Earth System Research / Physics Faculty of Science, University of Helsinki, Helsinki, Finland Academic dissertation To be presented, with the permission of the Faculty of Science of the University of Helsinki, for public criticism in Exactum auditorium CK112, Pietari Kalmin Katu 5, on August 23rd, 2021, at 14 o'clock. Helsinki 2021 Author’s Address Institute for Atmospheric and Earth System Research / Physics P.O. box 64 FI-00140 University of Helsinki [email protected] Supervisors Academician, Professor Markku Kulmala, Ph.D. Institute for Atmospheric and Earth System Research / Physics University of Helsinki Associate Professor Mikko Sipilä, Ph.D. Institute for Atmospheric and Earth System Research / Physics University of Helsinki Assistant Professor Matti Petteri Rissanen, Ph.D. Aerosol Physics Laboratory Tampere University Lecturer Theo Kurtén, Ph.D. Department of Chemistry University of Helsinki Reviewers Research Professor Hannele Hakola, Ph.D. Air Quality Group Finnish Meteorological Institute Assistant Professor Julia Schmale, Ph.D. Extreme Environments Research Laboratory École polytechnique fédérale de Lausanne Opponent Professor Gordon McFiggans, Ph.D. Department of Earth and Environmental Sciences University of Manchester ISBN 978-952-7276-59-4 (printed version) ISSN 0784-3496 Helsinki 2021 Unigrafia Oy ISBN 978-952-7276-60-0 (pdf version) http://www.atm.helsinki.fi FAAR Helsinki 2021 Acknowledgements The work for this thesis was carried out at the Division of Atmospheric Sciences at the Department of Physics and later at the Institute for Atmospheric and Earth System Research (INAR), University of Helsinki. -
Atmospheric Chemistry of Iodine ,† ,‡ § || § Alfonso Saiz-Lopez,* John† M
REVIEW pubs.acs.org/CR Atmospheric Chemistry of Iodine ,† ,‡ § || § Alfonso Saiz-Lopez,* John† M. C. Plane,* Alex^ R. Baker, Lucy J. Carpenter,‡ Roland von Glasow, Juan C. Gomez Martín, Gordon McFiggans, and Russell W. Saunders † Laboratory for Atmospheric and Climate Science (CIAC), CSIC, Toledo, Spain ‡ School of Chemistry, University of Leeds, Leeds, LS2 9JT, United Kingdom §School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom Department) of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom ^ School of Earth, Atmospheric & Environmental Sciences, University of Manchester, Manchester, M13 9PL, United Kingdom CONTENTS 5.2.2. Particle Formation in Macroalgal 1. Introduction A Incubation Experiments R 2. Sources of Iodine to the Atmosphere C 5.2.3. Iodine Oxide Particle Growth to 2.1. Atmospheric Mixing Ratios, Seasonality, and Potential Cloud Condensation Nuclei S Trends in Distributions C 5.3. Unresolved Aspects of Iodine-Mediated Particle 2.2. Emission Rates and Mechanisms E formation S 2.3. Molecular Iodine H 6. Accumulation of Iodine in Aerosol U 2.4. Summary H 6.1. Iodine Concentrations in Aerosol U 3. Measurements of Gas-Phase Reactive Iodine Species I 6.2. Iodine Speciation U 3.1. Coastal Marine Boundary Layer I 6.3. Key Uncertainties V 7. Impacts and Modeling of Reactive Iodine Species V 3.2. Remote, Open Ocean, and Tropical Marine 7.1. Impacts of Iodine Chemistry V Boundary Layer I 7.1.1. Ozone Depletion V 3.3. Polar Boundary Layer J 7.1.2. Influence on the NO and HO Balance W 3.4. Salt Lakes and Volcanoes K x x 7.1.3. -
Phenol Disgrace Via Periodate in Integrating by Using Supersonic Radiation
Journal of Medicine and Life Vol. 8, Special Issue 3, 2015, pp.233-237 Phenol disgrace via Periodate in integrating by using Supersonic Radiation Seid-Mohamadi A*, Asgari G**, Shokoohi R**, Adabi S** *Social Determinants of Health Research Center, Department of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamedan, Iran, **Department of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran Correspondence to: Shervin Adabi, MSc, Department of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Shahid Fahmideh Street, Hamadan, Iran Mobile phone: +989374196112, E-mail: [email protected] Received: March 14th, 2015 – Accepted: June 18th, 2015 Abstract In this study, a successful degradation of phenol was achieved by a combination of processes, ultrasonic irradiation and periodate. The effect of pH, dosage of IO4-, dosage of initial phenol and ultrasonic irradiation time on the phenol degradation were examined. Furthermore, the impacts of ion intensity on phenol degradation were examined. The findings indicated that the disgrace ratio advanced in acidic conditions and an upper degradation was achieved in combination processes. The current new investigation examined the effect of ion intensity and the findings determined that the principal intensity of solution is an inactive variable on phenol disgrace with these systems. A comparison research among IO4-/ US system and IO4- and US separately determined the COD removal and indicated that an combined method of IO4-/ US system had the best execution. Introduction degrade phenol residuals before the discharge to water sources. Advanced Oxidation Processes (AOPs) have Industries generate a considerable amount of been studied as efficient methods in last decades [5,6]. -
IODINE Its Properties and Technical Applications
IODINE Its Properties and Technical Applications CHILEAN IODINE EDUCATIONAL BUREAU, INC. 120 Broadway, New York 5, New York IODINE Its Properties and Technical Applications ¡¡iiHiüíiüüiütitittüHiiUitítHiiiittiíU CHILEAN IODINE EDUCATIONAL BUREAU, INC. 120 Broadway, New York 5, New York 1951 Copyright, 1951, by Chilean Iodine Educational Bureau, Inc. Printed in U.S.A. Contents Page Foreword v I—Chemistry of Iodine and Its Compounds 1 A Short History of Iodine 1 The Occurrence and Production of Iodine ....... 3 The Properties of Iodine 4 Solid Iodine 4 Liquid Iodine 5 Iodine Vapor and Gas 6 Chemical Properties 6 Inorganic Compounds of Iodine 8 Compounds of Electropositive Iodine 8 Compounds with Other Halogens 8 The Polyhalides 9 Hydrogen Iodide 1,0 Inorganic Iodides 10 Physical Properties 10 Chemical Properties 12 Complex Iodides .13 The Oxides of Iodine . 14 Iodic Acid and the Iodates 15 Periodic Acid and the Periodates 15 Reactions of Iodine and Its Inorganic Compounds With Organic Compounds 17 Iodine . 17 Iodine Halides 18 Hydrogen Iodide 19 Inorganic Iodides 19 Periodic and Iodic Acids 21 The Organic Iodo Compounds 22 Organic Compounds of Polyvalent Iodine 25 The lodoso Compounds 25 The Iodoxy Compounds 26 The Iodyl Compounds 26 The Iodonium Salts 27 Heterocyclic Iodine Compounds 30 Bibliography 31 II—Applications of Iodine and Its Compounds 35 Iodine in Organic Chemistry 35 Iodine and Its Compounds at Catalysts 35 Exchange Catalysis 35 Halogenation 38 Isomerization 38 Dehydration 39 III Page Acylation 41 Carbón Monoxide (and Nitric Oxide) Additions ... 42 Reactions with Oxygen 42 Homogeneous Pyrolysis 43 Iodine as an Inhibitor 44 Other Applications 44 Iodine and Its Compounds as Process Reagents ... -
Used at Rocky Flats
. TASK 1 REPORT (Rl) IDENTIFICATION OF CHEMICALS AND RADIONUCLIDES USED AT ROCKY FLATS I PROJECT BACKGROUND ChemRisk is conducting a Rocky Flats Toxicologic Review and Dose Reconstruction study for The Colorado Department of Health. The two year study will be completed by the fall of 1992. The ChemRisk study is composed of twelve tasks that represent the first phase of an independent investigation of off-site health risks associated with the operation of the Rocky Flats nuclear weapons plant northwest of Denver. The first eight tasks address the collection of historic information on operations and releases and a detailed dose reconstruction analysis. Tasks 9 through 12 address the compilation of information and communication of the results of the study. Task 1 will involve the creation of an inventory of chemicals and radionuclides that have been present at Rocky Flats. Using this inventory, chemicals and radionuclides of concern will be selected under Task 2, based on such factors as the relative toxicity of the materials, quantities used, how the materials might have been released into the environment, and the likelihood for transport of the materials off-site. An historical activities profile of the plant will be constructed under Task 3. Tasks 4, 5, and 6 will address the identification of where in the facility activities took place, how much of the materials of concern were released to the environment, and where these materials went after the releases. Task 7 addresses historic land-use in the vicinity of the plant and the location of off-site populations potentially affected by releases from Rocky Flats. -
Underactive Thyroid
Underactive Thyroid PDF generated using the open source mwlib toolkit. See http://code.pediapress.com/ for more information. PDF generated at: Thu, 21 Jun 2012 14:27:58 UTC Contents Articles Thyroid 1 Hypothyroidism 14 Nutrition 22 B vitamins 47 Vitamin E 53 Iodine 60 Selenium 75 Omega-6 fatty acid 90 Borage 94 Tyrosine 97 Phytotherapy 103 Fucus vesiculosus 107 Commiphora wightii 110 Nori 112 Desiccated thyroid extract 116 References Article Sources and Contributors 121 Image Sources, Licenses and Contributors 124 Article Licenses License 126 Thyroid 1 Thyroid thyroid Thyroid and parathyroid. Latin glandula thyroidea [1] Gray's subject #272 1269 System Endocrine system Precursor Thyroid diverticulum (an extension of endoderm into 2nd Branchial arch) [2] MeSH Thyroid+Gland [3] Dorlands/Elsevier Thyroid gland The thyroid gland or simply, the thyroid /ˈθaɪrɔɪd/, in vertebrate anatomy, is one of the largest endocrine glands. The thyroid gland is found in the neck, below the thyroid cartilage (which forms the laryngeal prominence, or "Adam's apple"). The isthmus (the bridge between the two lobes of the thyroid) is located inferior to the cricoid cartilage. The thyroid gland controls how quickly the body uses energy, makes proteins, and controls how sensitive the body is to other hormones. It participates in these processes by producing thyroid hormones, the principal ones being triiodothyronine (T ) and thyroxine which can sometimes be referred to as tetraiodothyronine (T ). These hormones 3 4 regulate the rate of metabolism and affect the growth and rate of function of many other systems in the body. T and 3 T are synthesized from both iodine and tyrosine. -
Iodine Pentoxide Cas No 12029-98-0 Material Safety
IODINE PENTOXIDE MATERIAL SAFETY DATA SHEET CAS NO 12029-98-0 SDS/MSDS SECTION 1: Identification of the substance/mixture and of the company/undertaking 1.1 Product identifiers Product name : Iodine Pentoxide CAS-No. : 12029-98-0 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratory chemicals, Industrial & for professional use only. 1.3 Details of the supplier of the safety data sheet Company : Central Drug House (P) Ltd 7/28 Vardaan House New Delhi -110002 INDIA Telephone : +91 11 49404040 Email : [email protected] 1.4 Emergency telephone number Emergency Phone # : +91 11 49404040 (9:00am - 6:00 pm) [Office hours] SECTION 2: Hazards identification 2.1 Classification of the substance or mixture Classification according to Regulation (EC) No 1272/2008 Oxidizing solids (Category 2), H272 Skin corrosion (Category 1B), H314 Serious eye damage (Category 1), H318 For the full text of the H-Statements mentioned in this Section, see Section 16. 2.2 Label elements Labelling according Regulation (EC) No 1272/2008 Pictogram Signal word Danger Hazard statement(s) H272 May intensify fire; oxidizer. H314 Causes severe skin burns and eye damage. Precautionary statement(s) P220 Keep/Store away from clothing/ combustible materials. Page 1 of 7 P280 Wear protective gloves/ protective clothing/ eye protection/ face protection. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P310 Immediately call a POISON CENTER/doctor. Supplemental Hazard none Statements 2.3 Other hazards This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher. -
The Effect of Low Solubility Organic Acids on the Hygroscopicity of Sodium Halide Aerosols
Atmos. Chem. Phys., 14, 11409–11425, 2014 www.atmos-chem-phys.net/14/11409/2014/ doi:10.5194/acp-14-11409-2014 © Author(s) 2014. CC Attribution 3.0 License. The effect of low solubility organic acids on the hygroscopicity of sodium halide aerosols L. Miñambres, E. Méndez, M. N. Sánchez, F. Castaño, and F. J. Basterretxea Departamento de Química Física, Facultad de Ciencia y Tecnología, University of the Basque Country, UPV/EHU, Campus de Leioa, B. Sarriena, s/n, Leioa 48940, Spain Correspondence to: L. Miñambres ([email protected]) Received: 28 November 2013 – Published in Atmos. Chem. Phys. Discuss.: 18 February 2014 Revised: 13 August 2014 – Accepted: 31 August 2014 – Published: 29 October 2014 Abstract. In order to accurately assess the influence of fatty 1 Introduction acids on the hygroscopic and other physicochemical prop- erties of sea salt aerosols, hexanoic, octanoic or lauric acid Marine aerosol is one of the most abundant types of nat- together with sodium halide salts (NaCl, NaBr and NaI) ural particulate matter in the Earth’s troposphere. Sea salt have been chosen to be investigated in this study. The hy- particles play an active role in the Earth’s radiative bal- groscopic properties of sodium halide sub-micrometre par- ance, influence mass transfer of gaseous compounds and ticles covered with organic acids have been examined by cloud-precipitation mechanisms, contribute to the formation Fourier-transform infrared spectroscopy in an aerosol flow of cloud condensation nuclei and have highly reactive sur- cell. Covered particles were generated by flowing atomized faces that take part in heterogeneous and multiphase chemi- sodium halide particles (either dry or aqueous) through a cal reactions (Andreae and Rosenfeld, 2008; Carslaw et al., heated oven containing the gaseous acid. -
On the Mechanism of Iodine Oxide Particle Formation
This is a repository copy of On the mechanism of iodine oxide particle formation. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/87171/ Version: Accepted Version Article: Gomez Martin, JC, Gálvez, O, Baeza-Romero, MT et al. (3 more authors) (2013) On the mechanism of iodine oxide particle formation. Physical Chemistry Chemical Physics, 15 (37). 15612 - 15622. ISSN 1463-9076 https://doi.org/10.1039/c3cp51217g Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version - refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher’s website. Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. [email protected] https://eprints.whiterose.ac.uk/ ⊇•≈♥ ⇓→←•×≈ ∇″ו″≈ ⊇•≈♥ √±↔→″↵× This article can be cited before page numbers have been issued, to do this please use: J. C. Gomez Martin, Ó. Gálvez, M. T. B. Romero, T. Ingham, J. M. C. Plane and M. A. Blitz, Phys. Chem. Chem. Phys., 2013, DOI: 10.1039/C3CP51217G. -
The Water–Iodine Oxide System: a Revised Mechanism for Hydration and Dehydration† Cite This: RSC Adv.,2017,7,10183 Dylan K
RSC Advances PAPER The water–iodine oxide system: a revised mechanism for hydration and dehydration† Cite this: RSC Adv.,2017,7,10183 Dylan K. Smith,a Michelle L. Pantoya,*a Jeffrey S. Parkeyb and Mehmet Kesmezb Iodic acids are widely studied in atmospheric and biological applications but their inherent hydrophilic properties introduce complexities that affect their functionality and reactivity. We have shown that iodic acid (HIO3) dehydrates directly into iodine pentoxide (I2O5) in contradiction to the generally accepted multi-step dehydration mechanism where HIO3 dehydrates into HI3O8 first, then dehydrates into I2O5. The generally accepted mechanism is used to determine the concentration of iodic acid by TGA and is only valid for special conditions. The revised mechanism allows for the determination of concentrations of iodic acids under all conditions, and the more specific conditions where the accepted mechanism is Received 6th December 2016 valid are shown. The determination of concentration of iodic acid with the revised dehydration Accepted 1st February 2017 mechanism is dependent on assumptions of residual water and initial concentration of HI3O8. The DOI: 10.1039/c6ra27854j validity of these assumptions is established by studying the absorption and hydration behavior of I2O5 rsc.li/rsc-advances from atmospheric water. These results will have an impact on the handling and use of iodine. Introduction absorption begins; variations in concentration of iodic acids (HIO3,HI3O8); crystal structure; onset temperature for dehy- Iodine(V) oxides have biocidal potential in neutralizing bacterial dration and decomposition; and, absorption rates. All of the agents released in certain weapon systems. Handling iodine(V) inconsistencies discussed below are affected by the hydration oxides is one of the biggest challenges toward their effective and dehydration mechanism. -
Chemical Substances Exempt from Notification of Manufacturing/Import Amount
Chemical Substances Exempt from Notification of Manufacturing/Import Amount A list under Chemical Substance Control Law (Japan) 2014-3-24 Official issuance: Joint Notice No.1 of MHLW, METI and MOE English source: Chemical Risk Information Platform (CHRIP) Edited by: https://ChemLinked.com ChemLinked Team, REACH24H Consulting Group| http://chemlinked.com 6 Floor, Building 2, Hesheng Trade Centre, No.327 Tianmu Mountain Road, Hangzhou, China. PC: 310023 Tel: +86 571 8700 7545 Fax: +86 571 8700 7566 Email: [email protected] 1 / 1 Specification: In Japan, all existing chemical substances and notified substances are given register numbers by Ministry of International Trade and Industry (MITI Number) as a chemical identifier. The Japanese Chemical Management Center continuously works on confirming the mapping relationships between MITI Numbers and CAS Registry Numbers. Please enter CHRIP to find if there are corresponding CAS Numbers by searching the substances’ names or MITI Numbers. The first digit of a MITI number is a category code. Those adopted in this List are as follows: 1: Inorganic compounds 2: Chained organic low-molecular-weight compounds 3: Mono-carbocyclic organic low-molecular-weight compounds 5: Heterocyclic organic low-molecular-weight compounds 6: Organic compounds of addition polymerization 7: Organic compounds of condensation polymerization 8: Organic compounds of modified starch, and processed fats and oils 9: Compounds of pharmaceutical active ingredients, etc. This document is provided by ChemLinked, a division of REACH24H Consulting Group. ChemLinked is a unique portal to must-know EHS issues in China, and essential regulatory database to keep all EHS & Regulatory Affairs managers well-equipped. You may subscribe and download this document from ChemLinked.com. -
Removal of Radioactive Iodine Using Silver/Iron Oxide Composite Nanoadsorbents
nanomaterials Communication Removal of Radioactive Iodine Using Silver/Iron Oxide Composite Nanoadsorbents Mah Rukh Zia 1,†, Muhammad Asim Raza 2,3,† , Sang Hyun Park 2,3 , Naseem Irfan 1, Rizwan Ahmed 1, Jung Eun Park 4, Jongho Jeon 4,* and Sajid Mushtaq 1,2,3,* 1 Department of Nuclear Engineering, Pakistan Institute of Engineering and Applied Sciences, P. O. Nilore, Islamabad 45650, Pakistan; [email protected] (M.R.Z.); [email protected] (N.I.); [email protected] (R.A.) 2 Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Korea; [email protected] (M.A.R.); [email protected] (S.H.P.) 3 Radiation Science and Technology, University of Science and Technology, Daejeon 34113, Korea 4 Department of Applied Chemistry, College of Engineering, Kyungpook National University, Daegu 41566, Korea; [email protected] * Correspondence: [email protected] (J.J.); [email protected] (S.M.); Tel.: +82-53-950-5584 (J.J.); +92-51-9248611-3716 (S.M.) † These Authors contributed equally to this study. Abstract: Efficient and cost-effective removal of radioactive iodine (radioiodine) from radioactive contaminated water has become a crucial task, following nuclear power plant disasters. Several materials for removing radioiodine have been reported in the literature. However, most of these materials exhibit some limitations, such as high production cost, slow adsorption kinetics, and poor adsorption capacity. Herein, we present silver/iron oxide nanocomposites (Ag/Fe3O4) for the efficient and specific removal of iodine anions from contaminated water. The Ag/Fe3O4 were Citation: Zia, M.R.; Raza, M.A.; Park, synthesized using a modified method and characterized via scanning electron microscopy, transmis- S.H.; Irfan, N.; Ahmed, R.; Park, J.E.; Jeon, J.; Mushtaq, S.