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Report of the Advisory Group to Recommend Priorities for the IARC Monographs During 2020–2024
IARC Monographs on the Identification of Carcinogenic Hazards to Humans Report of the Advisory Group to Recommend Priorities for the IARC Monographs during 2020–2024 Report of the Advisory Group to Recommend Priorities for the IARC Monographs during 2020–2024 CONTENTS Introduction ................................................................................................................................... 1 Acetaldehyde (CAS No. 75-07-0) ................................................................................................. 3 Acrolein (CAS No. 107-02-8) ....................................................................................................... 4 Acrylamide (CAS No. 79-06-1) .................................................................................................... 5 Acrylonitrile (CAS No. 107-13-1) ................................................................................................ 6 Aflatoxins (CAS No. 1402-68-2) .................................................................................................. 8 Air pollutants and underlying mechanisms for breast cancer ....................................................... 9 Airborne gram-negative bacterial endotoxins ............................................................................. 10 Alachlor (chloroacetanilide herbicide) (CAS No. 15972-60-8) .................................................. 10 Aluminium (CAS No. 7429-90-5) .............................................................................................. 11 -
Characterization of Heat Reformed Naphtha Cracking Bottom Oil Extracts
Carbon Vol. 9, No. 4 December 2008 pp. 289-293 Letters Characterization of Heat Reformed Naphtha Cracking Bottom Oil Extracts Jong Hyun Oh 1, Jae Young Lee1, Seok Hwan Kang2, Tai Hyung Rhee3 and Seung Kon Ryu1,♠ 1Departmentl of Chemical Engineering, Chungnam National University, Daejeon 305-764, Korea 2Uniplatek co., Ltd. Of “themoQ” 104-10 Munji-dong Yuseong, Daejeon 305-380, Korea 3Chemical Matrials Team, TECHNO SEMICHEM Co., Ltd., Kongju 314-240, Korea ♠email: [email protected] (Received November 13, 2008; Accepted December 12, 2008) Abstract Naphtha Cracking Bottom (NCB) oil was heat reformed at various reforming temperature and time, and the volatile extracts were characterized including yields, molecular weight distributions, and representative compounds. The yield of extract increased as the increase of reforming temperature (360 ~ 420oC) and time (1 ~ 4 hr). Molecular weight of the as-received NCB oil was under 200, and those of extracts were distributed in the range of 100-250, and far smaller than those of precursor pitches of 380-550. Naphtalene-based compounds were more than 70% in the as-received NCB oil, and most of them were isomers of compounds bonding functional groups, such as methyl (CH3-) and ethyl (C2H5-). When the as-received NCB oil was reformed at 360oC for 1 hr, the most prominent compound was 1,2-Butadien, 3-phenyl- (24.57%), while naphthalene became main component again as increasing the reforming temperature. Keywords : NCB oil, pitch, extract analysis, heat reforming 1. Introduction preparation of precursor pitch for pitch-based carbon fiber. The extracts were characterized to investigate the molecular 860 million barrel per year of petroleum oil was refined in weight distribution, representative compounds, yield, and Korea, 2004 [1]. -
Use of Bismuth Compounds for the Manufacture of Medicaments for The
Europäisches Patentamt *EP000805815B1* (19) European Patent Office Office européen des brevets (11) EP 0 805 815 B1 (12) EUROPEAN PATENT SPECIFICATION (45) Date of publication and mention (51) Int Cl.7: A61K 33/24, C07F 9/94, of the grant of the patent: A61K 49/04 10.04.2002 Bulletin 2002/15 (86) International application number: (21) Application number: 96901066.9 PCT/GB96/00183 (22) Date of filing: 26.01.1996 (87) International publication number: WO 96/22994 (01.08.1996 Gazette 1996/35) (54) Use of bismuth compounds for the manufacture of medicaments for the treatment of gastric disorders caused by Helicobacter pylori Verwendung von WISMUTVERBINDUNGEN zur Herstellung eines Arzneimittels zur Behandlung von Magenverstimmungen, die durch Helicobacter pylori verursacht werden Utilisation de COMPOSES DE BISMUTH pour la fabrication de médicaments pour le traitement de troubles gastriques associées avec Helicobacter pylori (84) Designated Contracting States: EP-A- 0 480 691 EP-A- 0 716 091 DE DK ES FR GB IE IT SE WO-A-91/03241 WO-A-93/02713 WO-A-95/06053 WO-A-96/16677 (30) Priority: 26.01.1995 GB 9501560 WO-A-96/16678 BE-A- 782 105 07.06.1995 US 486225 DE-A- 2 216 725 (43) Date of publication of application: • TETRAHEDRON LETT. (TELEAY,00404039);94; 12.11.1997 Bulletin 1997/46 VOL.35 (44); PP.8197-200, KYOTO UNIV.;FAC. SCI.; KYOTO; 606-01; JAPAN (JP), SUZUKI H ET (73) Proprietor: NYCOMED IMAGING A/S AL ’Ultrasonic reaction of triarylbismuthines 0401 Oslo (NO) and triarylstibines with iodosylbenzene. Mild oxidizing ability of the organobismuth oxide (72) Inventors: function for organic substrates’ • KLAVENESS, Jo • DATABASE CHEMABS CHEMICAL ABSTRACTS N-1166 Oslo (NO) SERVICE, COLUMBUS, OHIO, US ASTHANA A • BERG, Arne ’Reactions of triphenyl antimony, bismuth and N-1300 Sandvika (NO) their dibromides with pentachlorophenol and • ALMEN, Torsten pentachlorothiophenol’ & INDIAN J. -
SAFETY DATA SHEET Halocarbon R-503
SAFETY DATA SHEET Halocarbon R-503 Section 1. Identification GHS product identifier : Halocarbon R-503 Other means of : Not available. identification Product type : Liquefied gas Product use : Synthetic/Analytical chemistry. SDS # : 007306 Supplier's details : Airgas USA, LLC and its affiliates 259 North Radnor-Chester Road Suite 100 Radnor, PA 19087-5283 1-610-687-5253 24-hour telephone : 1-866-734-3438 Section 2. Hazards identification OSHA/HCS status : This material is considered hazardous by the OSHA Hazard Communication Standard (29 CFR 1910.1200). Classification of the : GASES UNDER PRESSURE - Liquefied gas substance or mixture HAZARDOUS TO THE OZONE LAYER - Category 1 GHS label elements Hazard pictograms : Signal word : Warning Hazard statements : Contains gas under pressure; may explode if heated. May cause frostbite. May displace oxygen and cause rapid suffocation. Harms public health and the environment by destroying ozone in the upper atmosphere. Precautionary statements General : Read and follow all Safety Data Sheets (SDS’S) before use. Read label before use. Keep out of reach of children. If medical advice is needed, have product container or label at hand. Close valve after each use and when empty. Use equipment rated for cylinder pressure. Do not open valve until connected to equipment prepared for use. Use a back flow preventative device in the piping. Use only equipment of compatible materials of construction. Always keep container in upright position. Prevention : Not applicable. Response : Not applicable. Storage : Protect from sunlight. Store in a well-ventilated place. Disposal : Refer to manufacturer or supplier for information on recovery or recycling. Hazards not otherwise : Liquid can cause burns similar to frostbite. -
(VI) and Chromium (V) Oxide Fluorides
Portland State University PDXScholar Dissertations and Theses Dissertations and Theses 1976 The chemistry of chromium (VI) and chromium (V) oxide fluorides Patrick Jay Green Portland State University Follow this and additional works at: https://pdxscholar.library.pdx.edu/open_access_etds Part of the Chemistry Commons Let us know how access to this document benefits ou.y Recommended Citation Green, Patrick Jay, "The chemistry of chromium (VI) and chromium (V) oxide fluorides" (1976). Dissertations and Theses. Paper 4039. https://doi.org/10.15760/etd.5923 This Thesis is brought to you for free and open access. It has been accepted for inclusion in Dissertations and Theses by an authorized administrator of PDXScholar. Please contact us if we can make this document more accessible: [email protected]. All ABSTRACT OF THE TllESIS OF Patrick Jay Green for the Master of Science in Chemistry presented April 16, 1976. Title: Chemistry of Chromium(VI) and Chromium(V) Oxide Fluorides. APPROVEO BY MEMBERS OF THE THESIS CO'"o\l TIEE: y . • Ii . ' I : • • • • • New preparative routes to chromyl fluoride were sought. It was found that chlorine ironofluoride reacts with chromium trioxide and chromyl chlo ride to produce chromyl fluoride. Attempts were ~ade to define a mechan ism for the reaction of ClF and Cr0 in light of by-products observed 3 and previous investigations. Carbonyl fluoride and chromium trioxide react to fom chro·yl fluoride and carbo:i dioxide. A mechanism was also proposed for this react10n. Chromium trioxide 11itl\ l~F6 or WF5 reacts to produce chromyl fluoride and the respective oxide tetrafluoride. 2 Sulfur hexafluoride did not react with Cr03. -
Landolt-Börnstein Indexes of Organic Compounds Subvolumes A-I by V
Landolt-Börnstein Indexes of Organic Compounds Subvolumes A-I By V. Vill, C. Bauhofer, G. Peters, H. Sajus, P. Weigner, LCI-Publisher and Chemistry Department of the University of Hamburg All printed index material has been used to build up the comprehensive Scidex database index developed by LCI Publisher GmbH, Hamburg For further information please visit www.lci-publisher.com From this database a CD-ROM and two online versions were derived. The first is attached to each of the printed subvolumes and the latter are offered for free use at the following addresses: Scidex Database online with graphical structure search on http://lb.chemie.uni-hamburg.de/ Or the easy to use html version on http://lb.chemie.uni-hamburg.de/static/ Landolt-Börnstein Numerical Data and Functional Relationships in Science and Technology New Series / Editor in Chief: W. Martienssen Index of Organic Compounds Subvolume A Compounds with 1 to 7 Carbon Atoms Editor: V. Vill Authors: V. Vill, G. Peters, H. Sajus 1 3 ISBN 3-540-66203-0 Springer-Verlag Berlin Heidelberg New York Library of Congress Cataloging in Publication Data Zahlenwerte und Funktionen aus Naturwissenschaften und Technik, Neue Serie Editor in Chief: W. Martienssen Index of Organic Compounds A: Editor: V. Vill At head of title: Landolt-Börnstein. Added t.p.: Numerical data and functional relationships in science and technology. Tables chiefly in English. Intended to supersede the Physikalisch-chemische Tabellen by H. Landolt and R. Börnstein of which the 6th ed. began publication in 1950 under title: Zahlenwerte und Funktionen aus Physik, Chemie, Astronomie, Geophysik und Technik. -
Chlorine Trifluoride
MATERIAL SAFETY DATA SHEET Prepared to U.S. OSHA, CMA, ANSI and Canadian WHMIS Standards 1. PRODUCT IDENTIFICATION CHEMICAL NAME; CLASS: CHLORINE TRIFLUORIDE SYNONYMS: Chlorine Fluoride CHEMICAL FAMILY NAME: Halogen Fluoride FORMULA: ClF3 Document Number: 20026 PRODUCT USE: Use as a fluorinator; for cutting oil-well tubes; reprocessing reactor fuels, as an oxidizer in propellants. SUPPLIER/MANUFACTURER'S NAME: AIR LIQUIDE AMERICA CORPORATION ADDRESS: 2700 Post Oak Drive Houston, TX 77056-8229 EMERGENCY PHONE: CHEMTREC: 1-800-424-9300 BUSINESS PHONE: General MSDS Information 1-713/896-2896 Fax on Demand: 1-800/231-1366 2. COMPOSITION and INFORMATION ON INGREDIENTS CHEMICAL NAME CAS # mole % EXPOSURE LIMITS IN AIR ACGIH OSHA TLV STEL PEL STEL IDLH OTHER ppm ppm ppm ppm ppm Chlorine Trifluoride 7790-91-2 > 99% NE 0.1, C NE 0.1, C 20 NIOSH REL: 0.1 C ppm DFG MAK: 0.1 ppm, C Maximum Impurities < 1% None of the trace impurities in this product contribute significantly to the hazards associated with the product. All hazard information pertinent to this product has been provided in this Material Safety Data Sheet, per the requirements of the OSHA Hazard Communication Standard (29 CFR 1910.1200) and State equivalents standards. NE = Not Established C = Ceiling Limit See Section 16 for Definitions of Terms Used. NOTE: all WHMIS required information is included. It is located in appropriate sections based on the ANSI Z400.1-1993 format. CHLORINE TRIFLUORIDE - ClF3 MSDS EFFECTIVE DATE: JUNE 1, 1998 PAGE 1 OF 9 3. HAZARD IDENTIFICATION EMERGENCY OVERVIEW: Chlorine Trifluoride is an extremely toxic, corrosive, water-reactive, oxidizing, colorless, liquefied gas, with a suffocating, sweet odor. -
Chem 22 Homework Set 12 1. Naphthalene Is Colorless, Tetracene
Chem 22 Homework set 12 1. Naphthalene is colorless, tetracene is orange, and azulene is blue. naphthalene tetracene azulene (a) Based on the colors observed for tetracene and azulene, what color or light does each compound absorb? (b) About what wavelength ranges do these colors correspond to? (c) Naphthalene has a conjugated π-system, so we know it must absorb somewhere in the UV- vis region of the EM spectrum. Where does it absorb? (d) What types of transitions are responsible for the absorptions? (e) Based on the absorption wavelengths, which cmpd has the smallest HOMO-LUMO gap? (f) How do you account for the difference in absorption λs of naphthalene vs tetracene? (g) Thinking about the factors that affect the absorption wavelengths, why does azulene not seem to follow the trend seen with the first two hydrocarbons? (h) Use the Rauk Hückelator (www.chem.ucalgary.ca/SHMO/) to determine the HOMO-LUMO gaps of each compound in β units. The use of this program will be demonstrated during Monday's class. 2. (a) What are the Hückel HOMO-LUMO gaps (in units of β) for the following molecules? Remember that we need to focus just on the π-systems. Use the Rauk Hückelator. (b) Use the Rauk Hückelator to draw some conjugated polyenes — linear as well as branched. Look at the HOMO. What is the correlation between the phases (ignore the sizes) of the p- orbitals that make up the HOMO and the positions of the double- and single-bonds in the Lewis structure? What is the relationship between the phases of p-orbitals of the LUMO to those of the HOMO? (c) Use your answer from part b and the pairing theorem to sketch the HOMO and LUMO of the polyenes below (again, just the phases — don't worry about the relative sizes of the p- orbitals). -
United States Patent (19) ’11) 4,095,037 Stapp 45) June 13, 1978
United States Patent (19) ’11) 4,095,037 Stapp 45) June 13, 1978 54 METHOD FOR THE oxIDATION OF A 56) References Cited CONJUGATED DOLEFN U.S. PATENT DOCUMENTS 3,238,225 3/1966 Brill................................ 260/346.1 (75) Inventor: Paul R. Stapp, Bartlesville, Okla. 3,432,558 3/1969 Ryland ................................. 260/604 3,670,014 6/1972 Fernholz .......................... 260/497 A 73 Assignee: Phillips Petroleum Company, 3,755,423 8/1973 Onoda .............................. 260/497 A. Bartlesville, Okla. 3,922,300 11/1975 Onoda .............................. 260/497. A Primary Examiner-James O. Thomas, Jr. 21 Appl. No.: 721,645 Assistant Examiner-Michael Shippen 22 Filed: Sep. 8, 1976 57 ABSTRACT A conjugated diolefin is reacted with a carboxylic acid, (51) Int, C.’......................... CO7C 67/05; B01J 23/16 a carboxylic acid anhydride, or a mixture thereof, in the (52) U.S.C. .................................... 560/246; 260/410; presence of oxygen and a catalyst comprising a com 260/410.6; 260/465.4; 560/1; 560/106; pound of bismuth, an alkali metal compound and a 560/112; 560/122; 560/228; 560/230; 252/438 source of nitrate ion. 58 Field of Search ........... 260/497 R, 497 A, 476 R, 260/410, 40.6, 465.4, 468 R, 487 11 Claims, No Drawings 4,095,037 1. METHOD FOR THE OXDATION OF A . R. R. R. 1) CONJUGATED DOLEFN C-CEC as R. BACKGROUND OF THE INVENTION The invention relates to a method suitable for the In said formula (1), R- is selected from the group oxidation of a conjugated diolefin. In another aspect, consisting of H-, F-, CL-, Br-, -, -CsN, the invention relates to a composition useful as a cata lyst. -
Iridium-Catalyzed Borylation of Arenes and Heteroarenes Via C–H Activation*
Pure Appl. Chem., Vol. 78, No. 7, pp. 1369–1375, 2006. doi:10.1351/pac200678071369 © 2006 IUPAC Iridium-catalyzed borylation of arenes and heteroarenes via C–H activation* Tatsuo Ishiyama and Norio Miyaura‡ Division of Chemical Process Engineering, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan Abstract: Direct C–H borylation of aromatic compounds catalyzed by a transition-metal complex was studied as an economical protocol for the synthesis of aromatic boron deriva- tives. Iridium complexes generated from Ir(I) precursors and 2,2'-bipyridine ligands effi- ciently catalyzed the reactions of arenes and heteroarenes with bis(pinacolato)diboron or pinacolborane to produce a variety of aryl- and heteroarylboron compounds. The catalytic cycle involves the formation of a tris(boryl)iridium(III) species and its oxidative addition to an aromatic C–H bond. Keywords: iridium catalyst; arylboron compounds; C–H activation; pinacolborane; bis(pina- colato)diboron. INTRODUCTION Aromatic boron derivatives are an important class of compounds, the utility of which has been amply demonstrated in various fields of chemistry. Traditional methods for their synthesis are based on the re- actions of trialkylborates with aromatic lithium or magnesium reagents derived from aromatic halides [1]. Pd-catalyzed cross-coupling of aromatic halides with tetra(alkoxo)diborons or di(alkoxo)boranes is a milder variant where the preparation of magnesium and lithium reagents is avoided [2,3]. Alternatively, transition-metal-catalyzed aromatic C–H borylation of aromatic compounds by pina- colborane (HBpin, pin = O2C2Me4) or bis(pinacolato)diboron (B2pin2) is highly attractive as a con- venient, economical, and environmentally benign process for the synthesis of aromatic boron com- pounds without any halogenated reactant, which has been studied extensively by Hartwig, Marder, and η4 Smith [4–6]. -
Status of Industry Efforts to Replace Halon Fire Extinguishing Agents
STATUS OF INDUSTRY EFFORTS TO REPLACE HALON FIRE EXTINGUISHING AGENTS Robert T. Wickham, P.E. March 16, 2002 WICKHAM ASSOCIATES NOTICE This document is disseminated under the sponsorship of the U.S. Environmental Protection Agency in the interest of information exchange. The views expressed in this report are those of the author and do not necessarily reflect those of the US Environmental Protection Agency. The US Environmental Protection Agency does not assume liability for the contents or use thereof and further the Agency does not endorse products or manufacturers. Trade or manufacturer's names appear herein solely because they are considered essential to the objective of this report. The following commercial products (requiring a trademark designation ® or ™) are mentioned in this report. Due to the frequency of usage, trademarks are not indicated. Mention of a product does not constitute endorsement or rejection of the product. Ansul FE-25 Argonite FE-36 Argotec FM-200 CEA-410 Halotron I CEA-614 Inergen CEA-308 NAF P-IV Envirogel NAF S-III FE-13 NN100 FE-227 Triodide FE-241 There are no restrictions on copying or distribution of this document. Additional copies of this report are available from ….. Wickham Associates 9 Winding Brook Drive Stratham, New Hampshire 03885 USA Tel: +603-772-3229 Fax: +603-772-7305 email: [email protected] The report is available at http://home.attbi.com/~wickham/downloads.htm for downloading in Adobe Acrobat portable document format (pdf). Preface This report is not intended to be a market study, but instead a snapshot of the progress industry and the government are making in employing non ozone depleting alternatives to halons in the fire protection sector. -
Download Author Version (PDF)
Journal of Materials Chemistry A Accepted Manuscript This is an Accepted Manuscript, which has been through the Royal Society of Chemistry peer review process and has been accepted for publication. Accepted Manuscripts are published online shortly after acceptance, before technical editing, formatting and proof reading. Using this free service, authors can make their results available to the community, in citable form, before we publish the edited article. We will replace this Accepted Manuscript with the edited and formatted Advance Article as soon as it is available. You can find more information about Accepted Manuscripts in the Information for Authors. Please note that technical editing may introduce minor changes to the text and/or graphics, which may alter content. The journal’s standard Terms & Conditions and the Ethical guidelines still apply. In no event shall the Royal Society of Chemistry be held responsible for any errors or omissions in this Accepted Manuscript or any consequences arising from the use of any information it contains. www.rsc.org/materialsA Page 1 of 9 Journal of Materials Chemistry A ARTICLE JMCA Safer Salts for CdTe Nanocrystal Solution Processed Solar Cells: The Dual Roles of Ligand Exchange and Grain Growth Received 00th January 20xx, a b c d e Accepted 00th January 20xx Troy K. Townsend, † William B. Heuer, Edward E. Foos, Eric Kowalski, Woojun Yoon and Joseph G. Tischler e DOI: 10.1039/x0xx00000x Inorganic CdSe/CdTe nanocrystals for solid-state photovoltaic devices are typically sintered into a bulk-like material after www.rsc.org/ annealing in the presence of solid cadmium chloride.