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Silver Iodate 1
SILVER IODATE 1 Silver Iodate a,c-Biladienes with exocyclic rings have been utilized in silver iodate–zinc acetate mediated cyclization.7,8 The reaction of a,c-biladienes bearing six-membered carbocyclic rings with silver AgIO 3 iodate in dimethylformamide followed by demetalation with 5% sulfuric acid in trifluoroacetic acid affords the isolated porphyrin in [7783-97-3] IO3Ag (MW 282.77) 12% yield (eq 3). The syntheses of petroporphyrin bearing a seven- 9 InChI = 1/Ag.HIO3/c;2-1(3)4/h;(H,2,3,4)/q+1;/p-1/fAg.IO3/ membered exocyclic ring, such as C32 15,17-butanoporphyrin qm;-1 and its 3-methyl homolog,10 have been reported by Lash and John- InChIKey = YSVXTGDPTJIEIX-YIVJLXCRCQ son (eq 4).8 Treatment of a,c-biladiene salts with silver iodate and zinc acetate affords desired petroporphyrins via oxidative cycliza- (reagent used as a versatile oxidative amidation and cyclization tion in good yields under mild conditions.5 However, attempts to component) cyclize a,c-biladienes bearing exocyclic rings under other condi- Physical Data: mp >200 ◦C; d 5.53 g cm−3. tions such as copper(II) chloride in dimethylformamide or cop- Solubility: soluble in aqueous ammonia; practically insoluble in per(II) acetate in pyridine result in only trace amounts of the water (0.3 g L−1 at 10 ◦C). cyclized petroporphyrins due to the geometry enforced on the Form Supplied in: white crystalline powder; commercially avail- tetrapyrrolic intermediate by the carbocyclic ring conformation.11 able. It has been shown that the silver iodate–zinc acetate mediated Handling, Storage, and Precautions: irritant; light sensitive; conditions can increase the stability of the cyclizing tetrapyrroles, causes ignition with reducing agents or combustibles; store in resulting in improvement of the cyclization yield.12 cool and dry conditions in well-sealed containers; handle in fume hood. -
Reproducibility of Silver-Silver Halide Electrodes
U. S. DEPARTMENT OF COMMERCE NATIONAL BUREAU OF STANDARDS RESEARCH PAPER RP1183 Part of Journal of Research of the National Bureau of Standards, Volume 22, March 1939 REPRODUCIBILITY OF SILVER.SILVER HALIDE ELECTRODES 1 By John Keenan Taylor and Edgar Reynolds Smith ABSTRACT Tests of the reproducibility in potential of the electrolytic, thermal-electrolytic, and thermal types of silver-silver chloride, silver-silver bromide, and silver-silver iodide electrodes, in both acid and neutral solutions, are reported. All of these silver-silver halide electrodes show an aging effect, such that freshly prepared electrodes behave as cathodes towards electrodes previously aged in the solution. They are not affected in potential by exposure to light, but the presence of oxygen disturbs the potentials of the silver-silver chloride and silver-silver bromide elec trodes in acid solutions, and of the silver-silver iodide electrodes in both acid and neutral solutions. Except in the case of the silver-silver iodide electrodes, of which the thermal-electrolytic type seems more reliable than the electrolytic or the thermal type, the equilibrium potential is independent of the type, within about 0.02 mv. CONTENTS Page I. Introduetion_ __ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ 307 II. Apparatus and materials_ _ _ _ _ _ _ _ _ _ _ _ _ __ __ _ _ ___ _ _ ____ _ _ _ _ ___ _ _ _ _ 308 III. -
United States P Patented July 18, 1972
3,677,840 United States P Patented July 18, 1972 iodide of the invention is obtained in a highly active form 3,677,840 ideally suited for nucleating purposes. PYROTECHNICS COMPRISING OXDE OF SILVER The metathesis reaction proceeds substantially accord FOR WEATHERMODIFICATION USE ing to the following equation: Graham C. Shaw, Garland, and Russell Reed, Jr. Brigham City, Utah, assignors to Thiokol Chemical Corporation, Bristol, Pa. No Drawing. Filed Sept. 18, 1969, Ser. No. 859,165 In accordance with the invention, the pyrotechnic com int, C. C06d 3/00 o position comprises, by weight, the cured product produced U.S. C. 149-19 5 Claims by mixing and curing together from about 0.5% to about 10 20% of oxide of silver; from about 2% to about 45% of an alkali iodate present in about a stoichiometric amount ABSTRACT OF THE DISCLOSURE relative to the amount of oxide of silver present in the A pyrotechnic composition which upon combustion composition; from about 25% to about 75% of a solid in produces mixed silver halide nuclei for use in influencing organic oxidizer selected from the perchlorates and the weather comprises a composition made by curing a mix 5 nitrates of ammonium and of Group I-A and Group II-A ture comprising silver oxide, an alkali iodate, an alkali metals of the Periodic Table; and from about 10% to perchlorate and a curable oxygenated or fluorinated or about 20% of a curable, fluid polymer binder for pyro ganic liquid polymer binder. The composition burns technic compositions, especially a combined-halogen-rich smoothly to provide by metathesis a mixture of silver or combined-oxygen-rich polymer binder, preferably a halides as substantially the only solid or condensed phase 20 polyester-urethane terminated with amine or hydroxyl reaction products, and leaves substantially no residue. -
12A- 6 4-4El ATTORNEY 3,039,846 United States Patent Office Patented June 19, 1962 1
June 19, 1962 P. R. OGLE, JR 3,039,846 METHOD FOR THE RECOVERY AND PURIFICATION OF GASEOUS UF FROM GASEOUSPRODUCTS MIXTURES PRODUCEDANDUFNO AND UF, NO THEREBY Filed Oct. 9, 196l. : 8 s O O O O O o O t CN A. "NOISSWSNW.L INVENTOR Pearl R. Ogle, Jr. BY 12a- 6 4-4el ATTORNEY 3,039,846 United States Patent Office Patented June 19, 1962 1. 2 3,039,846 of UF are superimposed. The absorption bands at METHOD FOR THE RECOVERY AND PURIFICA 2320 and 2318, and 549 to 510 cm. are attributed to TION OF GASEOUS UFFROM GASEOUSMX the NO+ and UF ions, respectively, this indicating that TURES AND UFNO AND UFNO PRODUCTS the compound UFNO is a 1:1 addition complex having PRODUCED THEREBY a composition NOF.UF6. This compound has a vapor Pearl R. Ogle, Jr., Chilicothe, Ohio, assignor to the pressure of less than 1 mm. Hg at 25°C. with the vapor 'United States of America as represented by the United over the solid comprising approximately equal molar States Atomic Energy Commission quantities of uranium hexafluoride and nitrosyl fluoride. Filed Oct. 9, 1961, Ser. No. 143,986 Example II 8 Claims. (C. 23-14.5) 10. The present invention relates to a new and useful class This example illustrates the preparation of UFNO2. of chemical reactions involving gaseous uranium hexa The procedure of Example I was used to react UFa fluoride and to a new and useful method of recovering and nitryl fluoride. A greenish-white solid having a and/or purifying gaseous uranium hexafluoride values vapor pressure of 11.6 mm. -
Maine Remedial Action Guidelines (Rags) for Contaminated Sites
Maine Department of Environmental Protection Remedial Action Guidelines for Contaminated Sites (RAGs) Effective Date: May 1, 2021 Approved by: ___________________________ Date: April 27, 2021 David Burns, Director Bureau of Remediation & Waste Management Executive Summary MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION 17 State House Station | Augusta, Maine 04333-0017 www.maine.gov/dep Maine Department of Environmental Protection Remedial Action Guidelines for Contaminated Sites Contents 1 Disclaimer ...................................................................................................................... 1 2 Introduction and Purpose ............................................................................................... 1 2.1 Purpose ......................................................................................................................................... 1 2.2 Consistency with Superfund Risk Assessment .............................................................................. 1 2.3 When to Use RAGs and When to Develop a Site-Specific Risk Assessment ................................. 1 3 Applicability ................................................................................................................... 2 3.1 Applicable Programs & DEP Approval Process ............................................................................. 2 3.1.1 Uncontrolled Hazardous Substance Sites ............................................................................. 2 3.1.2 Voluntary Response Action Program -
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 -
Ucri, 100554 Preprint
UCRI, 100554 PREPRINT x CHEMICAL THERMODYNAMICS OF TECHNETIUM 0 r0 0 0m 0 Joseph A.' Rard z C w1 m This paper was prepared for inclusion in the book CHEMICAL THERMODYNAMICS OF TECHNETIUM (to' be published by the Nuclear Energy Agency, Paris, France) February 1989 This is a preprint of a paper intended for publication in a journal or proceedings. Since changes may be made before publication, this preprint is made available with the understanding that it will not be cited or reproduced without the permission of the author. - DISCILAIMER This document was prepared as an account of work sponsored by asnagency of the United States Government Neither the United States Government nor the University of California nor any of their employees. makes any warranty, express or implieid, or assumes any legal liability or responsibility for the accuracy completeness, or useful- ness of any Information, apparatus. product, or process disclosed. or represents that Its use would not Iafringe privately owned rights. Reference hereln to any specific commercial products, process, or service by trade name. trademark. manufacturer, or otherwise. does not necessarily constitute or Imply its endorsement. recommendation, or favoring by the United States Government or the University of California. The views and opinions of authors expressed hereb do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. -W This manuscript by JA Rard is to be part of a book entitled "CHEMICAL THERMODYNAMICS OF TECHNETIUM". It will be published by the Nuclear Energy Agency Data Bank at Saclay, France. -
A Characterization of Mixed Silver Iodide-Silver Chloride Ice Nuclei
A Characterization of Mixed Silver Iodide-Silver Chloride Ice Nuclei by Paul J. DeMott Department of Atmospheric Science Colorado State University Fort Collins, Colorado A CHARACTERIZATION OF MIXED SILVER IODID~~SILV~R CHLORIDE ICE NUCLEi P~ul J. D~ott Th~s repQrt was pr~pared witp ~upport provid~d by National Sc~ence Founqat~on Gran~ ~TM Y9~~6~04 Prtncipal Investig~tor, LeWlS 0, Grant Department of Atmospheric Science Colorado State Un~versity Fort Collins, Colqrado August 1962 Atwospheric Sci~nce Paper No.3~9 ABSTRACT A new approach and methodology to study the ice nucleation proper- ties of aerosols used for weather modification is introduced in this thesis. This approach and methodology is termed mixed aerosol phase change kinetics and is based on an analogy to chemical reaction kinet- ics. Utlizing this methodology, measurements of the rates of ice cry- stal formation in a cloudy environment by ice nucleating ae,osols, can give inferences to the inter-relationships existing between ice ~u~lea- tion effectiveness, mechanisms for ice crystal formation, and aerosol physical and chemical characteristics. The chemical kinetic methodology is applied to the study of a specific ice nucleating aerosol in the CSU isothermal cloud chamber. This aerosol, mixed silver iodide - silver chloride (Ag! - AgCI), was suspected to be a highly efficient ice nucleus. The mixed Ag! - AgCI aerosols were generated by simple solu- tion combustion methods. The major conclusions in this thesis are the following: a. The analogy to chemical reaction kinetics appears valid for the study of ice nucleation. An analysis of data based on the kinetic methodology produces clear and detailed information about the nucleation process. -
Cryogenic Solutions and Solubilities in Liquid Flourine
NASA TECHNICAL NOTE 40 Qo N N I n z c 4 m 4 z CRYOGENIC SOLUTIONS AND SOLUBILITIES IN LIQUID FLUORINE by Robert E. Seauer Lewis Research Center Cleueland, Ohio I NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 0 WASHINGTON, D. C. '" 0, JUNE 1964 CRYOGENIC SOLUTIONS AND SOLUBILITIES IN LIQUID FLUORINE By Robert E. Seaver Lewis Research Center Cleveland, Ohio NATIONAL AERONAUTICS AND SPACE ADMINISTRATION For sale by the Office of Technical Services, Department of Commerce, Washington, D.C. 20230 -- Price $0.50 CRYOGENIC SOLUTIONS AND SOLUBILITIES IN LIQUID FLUORINE by Robert E. Seaver Lewis Research Center SUMMARY The solubilities of several substances in liquid fluorine have been deter- mined between 68' and 83' K by vapor-pressure measurements. These experimental data, as well as a summary of literature data on solutions of solids in cryo- genic liquids, are presented and compared with solubilities calculated by as- suming regular solutions. Experimental and calculated values for the solubili- ties of carbon tetrafluoride, perfluorethane, and perchloryl fluoride in liquid fluorine show close agreement, while the solubilities of krypton and xenon in fluorine show considerable deviation from calculated values. Little of the literature data agrees with the calculated solubilities. Deviations from cal- culated values are discussed. INTRODUCTION Only a limited amount of past work has been concerned with the prediction of the solubilities of solids in cryogenic liquids. Information on solutions in liquid fluorine is essentially nonexistent, and in the case of carbon tetra- fluoride the solubility data that are available (ref. 1) appear to be in con- siderable error. This lack of information, together with the importance of cryogenic liquids in space applications and the possible use of fluorine as a rocket propellant, prompted the present investigation. -
Nitrogen Oxychlorides : a Bibliography on Data for Physical and Chemical
NBS Publl - cations NArL INST. OF STAND & TECH NBS SPECIAL PUBLICATION 478 U.S. DEPARTMENT OF COMMERCE / National Bureau of Standards NITROGEN OXYCHLORIDES: A Bibliography on Data for Physical and Chemical Properties of CUNO, CLNO2, and CdNOs NATIONAL BUREAU OF STANDARDS The National Bureau of Standards^ was established by an act of Congress March 3, 1901. The Bureau's overall goal is to' strengthen and advance the Nation's science and technology and facilitate their effective application for public benefit. To this end, the Bureau conducts research and provides: (1) a basis for the Nation's physical measurement system, (2) scientific and technological services for industry and government, (3) a technical basis for equity in trade, and (4) technical services to pro- mote public safety. The Bureau consists of the Institute for Basic Standards, the Institute for Materials Research, the Institute! for Applied Technology, the Institute for Computer Sciences and Technology, the Office for Information Programs, and the Office of Experimental Technology Incentives Program. THE INSTITUTE FOR BASIC STANDARDS provides the central basis within the United States of a complete and consist- ent system of physical measurement; coordinates that system with measurement systems of other nations; and furnishes essen-' tial services leading to accurate and uniform physical measurements throughout the Nation's scientific community, industry,! and commerce. The Institute consists of the Office of Measurement Services, and the following center and divisions: -
A Method for the Determination of Halogens in Organic Compounds
METHOD FOR THE DETERMINATION OF HALOGENS IN ORGANIC COMPOUNDS BY JOHN FREDERICK LEMP THESIS FOR THE DEGREE OF BACHELOR OF SCIENCE IN CHEMICAL ENGINEERING COLLEGE OF LIBERAL ARTS AND SCIENCES UNIVERSITY OF ILLINOIS 1917 X Lsrf UNIVERSITY OF ILLINOIS .S^..^r 191. THIS IS TO CERTIFY THAT THE THESIS PREPARED UNDER MY SUPERVISION BY IS APPROVED BY ME AS FULFILLING THIS PART OF THE REQUIREMENTS FOR THE DEGREE OF Instructor in Charge Approved :. HEAD OF DEPARTMENT OF. The author wishes to express his appreciation to Dr. H. J. Broderson for his suggestions and help both in the experimental work and in the writing of this thesis. Thanks are also due Dr. Oliver Kamm, who by supplying pure organic compounds has made the laboratory work possible. TABLE OF 0OIJTSI T TS Page Introduction L Experimental 3 I Plate showing cross-section of the fusion cup used 4 II Description of procedure III Tabulated results 11 Interpretation of Results 14 Summary 15 Bib liography 17 Digitized by the Internet Archive in 2014 http://archive.org/details/methodfordetermiOOIemp INTRODUCTION The growth and the importance of the field of Organic Chemistry has induced a similar growth in the study and the establishment of methods of analysis with which to prove the structures and test the purities of the various compounds. At the present time, however, very few books exist which deal with the systematic analysis of organic substances. Fewer still are the reliable methods of analysis which may be applied to all types of organic compounds. The ;work covered in this thesis deals with several types of compounds containing halogens. -
Chemical Capabilities Listing Laboratory, R&D, Industrial and Manufacturing Applications
Page 1 of 3 Chemical Capabilities Listing Laboratory, R&D, Industrial and Manufacturing Applications Acacia, Gum Arabic Barium Oxide Chromium Trioxide Acetaldehyde Bentonite, White Citric Acid, Anhydrous Acetamide Benzaldehyde Citric Acid, Monohydrate Acetanilide Benzoic Acid Cobalt Oxide Acetic Acid Benzoyl Chloride Cobaltous Acetate Acetic Anhydride Benzyl Alcohol Cobaltous Carbonate Acetone Bismuth Chloride Cobaltous Chloride Acetonitrile Bismuth Nitrate Cobaltous Nitrate Acetyl Chloride Bismuth Trioxide Cobaltous Sulfate Aluminium Ammonium Sulfate Boric Acid Cottonseed Oil Aluminon Boric Anhydride Cupferron Aluminum Chloride, Anhydrous Brucine Sulfate Cupric Acetate Aluminum Chloride, Hexahydrate n-Butyl Acetate Cupric Bromide Aluminum Fluoride n-Butyl Alcohol Cupric Carbonate, Basic Aluminum Hydroxide tert-Butyl Alcohol Cupric Chloride Aluminum Nitrate Butyric Acid Cupric Nitrate Aluminum Oxide Cadmium Acetate Cupric Oxide Aluminum Potassium Sulfate Cadmium Carbonate Cupric Sulfate, Anhydrous Aluminum Sulfate Cadmium Chloride, Anhydrous Cupric Sulfate, Pentahydrate 1-Amino-2-Naphthol-4-Sulfonic Acid Cadmium Chloride, Hemipentahydrate Cuprous Chloride Ammonium Acetate Cadmium Iodide Cuprous Oxide, Red Ammonium Bicarbonate Cadmium Nitrate Cyclohexane Ammonium Bifluoride Cadmium Oxide Cyclohexanol Ammonium Bisulfate Cadmium Sulfate, Anhydrous Cyclohexanone Ammonium Bromide Cadmium Sulfate, Hydrate Devarda's Alloy Ammonium Carbonate Calcium Acetate Dextrose, Anhydrous Ammonium Chloride Calcium Carbide Diacetone Alcohol Ammonium Citrate