323 Aluminum Anodizing Models 126 Anodic Oxide Films 107
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Environmental Protection Agency
Friday, December 19, 2003 Part II Environmental Protection Agency 40 CFR Part 63 National Emission Standards for Hazardous Air Pollutants: Mercury Emissions from Mercury Cell Chlor-Alkali Plants; Final Rule VerDate jul<14>2003 15:14 Dec 18, 2003 Jkt 203001 PO 00000 Frm 00001 Fmt 4717 Sfmt 4717 E:\FR\FM\19DER2.SGM 19DER2 70904 Federal Register / Vol. 68, No. 244 / Friday, December 19, 2003 / Rules and Regulations ENVIRONMENTAL PROTECTION types of sources (usually in the Information or other information whose AGENCY elemental or inorganic forms) transports disclosure is restricted by statute. through the atmosphere and eventually The official public docket is the 40 CFR Part 63 deposits onto land or water bodies. collection of materials that is available [OAR–2002–0017; FRL–7551–5] When mercury is deposited to surface for public viewing. The EPA Docket waters, natural processes (bacterial) can RIN 2060–AE85 Center Public Reading Room is open transform some of the mercury into from 8:30 a.m. to 4:30 p.m., Monday methylmercury that accumulates in fish. through Friday, excluding legal National Emission Standards for Ingestion is the primary exposure route Hazardous Air Pollutants: Mercury holidays. The telephone number for the of interest for methylmercury. The Reading Room is (202) 566–1744, and Emissions From Mercury Cell Chlor- health effect of greatest concern due to Alkali Plants the telephone number for the Air Docket methylmercury is neurotoxicity, is (202) 566–1742. AGENCY: Environmental Protection particularly with respect to fetuses and Agency (EPA). young children. Electronic Docket Access. You may access the final rule electronically ACTION: Final rule. -
1. the Diagram Below Shows an Electrolytic Cell Using Graphite Electrodes
1 Quiz (More Complicated Questions) 1. The diagram below shows an electrolytic cell using graphite electrodes. (a) Explain why the bulb does not light up when distilled water is used as electrolyte. (b) Explain why the bulb lights up when hydrogen chloride gas is passed into distilled water. (c) During electrolysis, colourless gas bubbles are produced at both electrodes A and B. What is the gas produced at each electrode? (d) Write half equations for the reactions taking place at electrodes A and B respectively. (e) Explain why the rates of formation of gas at the two electrodes are different. 2. The following set-up shows the electrolysis of dilute copper(II) sulphate solution with different electrodes in two electrolytic cells, X and Y, connected in series. 2 (a) (i) Identify the anode and the cathode in electrolytic cell X. (ii) Write the half equation for the reaction taking place at each electrode in electrolytic cell X. (iii) State the expected observable change(s) at each electrode in electrolytic cell X. (b) (i) Identify the anode and the cathode in electrolytic cell Y. (ii) Write the half equation for the reaction taking place at each electrode in electrolytic cell Y. (iii) State the expected observable change(s) at each electrode in electrolytic cell Y. (c) Explain why different products are produced at electrodes A and C. (d) State and explain the change of copper(II) sulphate solution in each electrolytic cell after electrolysis. 3. A microscale experiment is carried out to study the electrolysis of very dilute sodium chloride solution containing some universal indicator. -
Federal Register/Vol. 67, No. 128
Federal Register / Vol. 67, No. 128 / Wednesday, July 3, 2002 / Proposed Rules 44713 TABLE 9 TO SUBPART IIIII OF PART 63.—APPLICABILITY OF GENERAL PROVISIONS TO SUBPART IIIII—Continued Applies to Subpart Citation Subject IIIII Explanation § 63.10(d)(3) ........................................... Reporting Opacity or VE Observations No ......................... Subpart IIIII does not have opacity and visible emission standards. § 63.11 .................................................... Flares ................................................... No ......................... Subpart IIIII does not require flares. § 63.12 .................................................... Delegation ............................................ Yes. § 63.13 .................................................... Addresses ............................................ Yes. § 63.14 .................................................... Incorporation by Reference .................. Yes. § 63.15 .................................................... Availability of Information ..................... Yes. [FR Doc. 02–15873 Filed 7–2–02; 8:45 am] A–2002–09, U.S. EPA, 401 M Street, Standards Division, U.S. EPA, Research BILLING CODE 6560–50–P SW., Washington, DC 20460. Triangle Park, NC 27711. The EPA will Public Hearing. If a public hearing is disclose information identified as CBI held, it will be held at the new EPA only to the extent allowed by the ENVIRONMENTAL PROTECTION facility complex in Research Triangle procedures set forth in 40 CFR part 2. AGENCY Park, North -
Electrochemistry –An Oxidizing Agent Is a Species That Oxidizes Another Species; It Is Itself Reduced
Oxidation-Reduction Reactions Chapter 17 • Describing Oxidation-Reduction Reactions Electrochemistry –An oxidizing agent is a species that oxidizes another species; it is itself reduced. –A reducing agent is a species that reduces another species; it is itself oxidized. Loss of 2 e-1 oxidation reducing agent +2 +2 Fe( s) + Cu (aq) → Fe (aq) + Cu( s) oxidizing agent Gain of 2 e-1 reduction Skeleton Oxidation-Reduction Equations Electrochemistry ! Identify what species is being oxidized (this will be the “reducing agent”) ! Identify what species is being •The study of the interchange of reduced (this will be the “oxidizing agent”) chemical and electrical energy. ! What species result from the oxidation and reduction? ! Does the reaction occur in acidic or basic solution? 2+ - 3+ 2+ Fe (aq) + MnO4 (aq) 6 Fe (aq) + Mn (aq) Steps in Balancing Oxidation-Reduction Review of Terms Equations in Acidic solutions 1. Assign oxidation numbers to • oxidation-reduction (redox) each atom so that you know reaction: involves a transfer of what is oxidized and what is electrons from the reducing agent to reduced 2. Split the skeleton equation into the oxidizing agent. two half-reactions-one for the oxidation reaction (element • oxidation: loss of electrons increases in oxidation number) and one for the reduction (element decreases in oxidation • reduction: gain of electrons number) 2+ 3+ - 2+ Fe (aq) º Fe (aq) MnO4 (aq) º Mn (aq) 1 3. Complete and balance each half reaction Galvanic Cell a. Balance all atoms except O and H 2+ 3+ - 2+ (Voltaic Cell) Fe (aq) º Fe (aq) MnO4 (aq) º Mn (aq) b. -
GREEN SYNTHESIS and CHARACTERIZATION of SODIUM Supported by CYANIDE from CASSAVA (Manihot Esculenta CRANTZ)
GREEN SYNTHESIS AND CHARACTERIZATION OF SODIUM Supported by CYANIDE FROM CASSAVA (Manihot esculenta CRANTZ) E. B. AttahDaniel1*, P. O. Enwerem2, P. G. Lawrence1, C. U. Ofiwe 3, S. O. O. Olusunle4 and A. R. Adetunji5 1Department of Chemical Sciences, Federal University Wukari, PMB 1020, Taraba State, Nigeria 2Department of Chemistry, River State University, PMB 5080, Mkpoluorowurukwo, Port Harcourt, Nigeria 3National Agency for Science & Engineering Infrastructure, Centre of Excellence, Nanotechnology and Advanced Material, Akure x, Ondo State, Nigeria 4Engineering Materials Development Institute, PMB 611 Akure, Ondo State, Nigeria 5Department of Materials and Metallurgical Engineering, Obafemi Awolowo University, Ile Ife, Nigeria *Corresponding author: [email protected] Received: January 09, 2020 Accepted: February 24, 2020 Abstract: This study was carried out to develop a green, simple and cost-effective route for synthesis of sodium cyanidevia aquohydrolysis of linamarin a cyanogenic glucoside found in cassava (Manihot esculenta Crantz). Two procedures were employed and compared, the acid hydrolysis method and direct (aquo) hydrolysis. The CN– ion released was reacted with Na+ via ion exchange to replace the hydroxyl ion (OH–) and yielded NaCN. The NaCN was crystallized via evaporation in an air ventilated oven by maintaining the temperature of the reaction solution at 100oC. The crystalized salt was quantified using the modified Vogel’s Argentometric method of cyanide quantification. The concentrations were found to be 10.56 mg/g for whole tuber, 13.92 mg/g for tuber tissue and 4.5 mg/g for cassava peels. Analyte grade sodium cyanide purchased off shelf was used as a reference. The crystals were characterized using, X-ray diffraction analysis; the X-ray diffractogram confirmed the products from acid hydrolysis was a cyanogen (CN2CN2) while the product from direct hydrolysis was sodium cyanide. -
Quantitative Electrolysis
Lab Exercise #1: Quantitative Electrolysis Experimental Design: A steel can is placed in an electroplating cell and connected as the cathode. An electric current of 3.46 A flows through the cell, which contains a 3.25 mol/L solution of tin(II) chloride for 6.00 minutes. Questions: 1. What mass of tin should be plated at the cathode during this reaction? 2. Prior to being electroplated with tin, the steel can had a mass of 117.34 g. After 6.00 minutes of electroplating, the can has a mass of 118.05 g. Calculate the percent error associated with this process. Lab Exercise #2: Using Quantitative Electrolysis to Determine an Oxidation State Experimental Design: A solution containing vanadium ions with an unknown oxidation state is electrolyzed with a current of 1.50 A for 30.0 minutes. At the completion of this electrolytic process, a mass of 0.475 g of vanadium metal has been plated onto the cathode. Question: 1. What is the oxidation state of the vanadium ions in the solution? Chem 30 Electrolytic Cells 1. The electroplating of nickel onto a silver-coated master disc is a step in the manufacturing of CDs. a. When nickel is plated onto the silver master disc, is the master disc the anode or the cathode of the cell? Explain. b. Calculate the amount of charge needed (in C) to plate each gram of nickel onto the master disc. Assume that the plating process involves the reduction of nickel(II) ions. (q = 3.29 x 103 C) 2. Most industrial reactions take place on a much larger scale than the reactions in a laboratory or classroom. -
Glossary Chem2007.Pdf
An English‐Chinese and Chinese‐English Glossary of Terms Commonly Used in the Teaching of Chemistry in Secondary Schools 中學化學科常用英漢及漢英辭彙 Prepared by the Curriculum Development Council 2007 香港課程發展議會編訂 二零零七年 English-Chinese Glossaries of Terms Commonly Used in the Teaching of Chemistry in Secondary Schools 2007 ID English Chinese 1 (-)-2,3-dihydroxybutanedioic acid (-)-2,3-二羥基丁二酸 2 (—)-tartaric acid (—)-酒石酸 3 (+)-2,3-dihydroxybutanedioic acid (+)-2,3-二羥基丁二酸 4(+)-tartaric acid (+)-酒石酸 5 (2,4-dichlorophenoxy)ethanoic acid (2,4-二氯苯氧基)乙酸 6 (bromomethyl)benzene (溴甲基)苯 7 (chloromethyl)benzene (氯甲基)苯 8 (dichloromethyl)benzene (二氯甲基)苯 9 (trichloromethyl)benzene (三氯甲基)苯 10 cis--but-2-enal 順-丁-2-烯醛 11 cis-but-2-ene 順-丁-2-烯 12 cis-but-2-enoic acid 順-丁-2-烯酸 13 cis-butenedioate 順-丁烯二酸鹽;順-丁烯二酸<某>酯 14 cis-butenedioic acid 順-丁烯二酸 15 cis-butenedioic anhydride 順-丁烯二<酸>酐 16 cis-diamminedichloroplatinum(II) 順-二氨二氯合鉑(II),順-二氯.二氨合鉑(II) 17 cis-methylbutenedioic acid 順-甲基丁烯二酸 18 cis-octadec-9-enoic acid 順-十八碳-9-烯酸 19 d-glucose 右旋葡萄糖 20 d-tartaric acid 右旋酒石酸 21 l-tartaric acid 左旋酒石酸 22 l-glucose 左旋葡萄糖 23 m- (meta-) 間 24 m-cresol 間甲酚 25 m-hydroxybenzoic acid 間羥基苯<甲>酸 26 m-nitrotoluene 間硝基甲苯 27 m-toluic acid 間甲苯<甲>酸 28 m-xylene 間二甲苯 29 meso-2,3-dihydroxybutanedioic acid 內消旋-2,3-二羥基丁二酸 30 meso-tartaric acid 內消旋酒石酸 31 meso-tartrate 內消旋酒石酸鹽 32 N,N-dimethylaniline N,N-二甲基苯胺 33 N,N-dimethylbenzenamine N,N-二甲基苯胺 34 N,N-dimethylethanamide N,N-二甲基乙酰胺 35 N,N-dimethylphenylamine N,N-二甲基苯胺 36 N,N-diethylethanamine N,N-二乙基乙胺 37 N-(bromophenyl)ethanamide N-(溴苯基)乙酰胺 38 N-(nitrophenyl)ethanamide -
Collection List 2021.Xlsx
AccNoPrefix No Description 1982 1 Shovel used at T Bolton and Sons Ltd. 1982 2 Shovel used at T Bolton and Sons Ltd STENCILLED SIGNAGE 1982 3 Telegraph key used at T Bolton and Sons Ltd 1982 4 Voltmeter used at T Bolton and Sons Ltd 1982 5 Resistor used at T Bolton and Sons Ltd 1982 6 Photograph of Copper Sulphate plant at T Bolton and Sons Ltd 1982 7 Stoneware Jar 9" x 6"dia marked 'Imperial Chemical Industries Ltd General Chemicals Division' 1982 8 Stoneware Jar 11" x 5"dia marked 'Cowburns Botanical Beverages Heely Street Wigan 1939' 1982 9 Glass Carboy for storing hydrochloric acid 1982 10 Bar of 'Bodyguard' soap Gossage and Sons Ltd Leeds 1982 11 Pack of Gossages Tap Water Softener and Bleacher 1982 12 Wall Map Business Map of Widnes 1904 1982 13 Glass Photo Plate Girl seated at machine tool 1982 14 Glass Photo Plate W J Bush and Co Exhibition stand 1982 15 Glass Photo Plate H T Watson Ltd Exhibition stand 1982 16 Glass Photo Plate Southerns Ltd Exhibition stand 1982 17 Glass Photo Plate Fisons Ltd Exhibition stand 1982 18 Glass Photo Plate Albright and Wilson Exhibition stand 1982 19 Glass Photo Plate General view of Exhibition 1982 20 Glass Photo Plate J H Dennis and Co Exhibition stand 1982 21 Glass Photo Plate Albright and Wilson Chemicals display 1982 22 Glass Photo Plate Widnes Foundry Exhibition stand 1982 23 Glass Photo Plate Thomas Bolton and Sons Exhibition stand 1982 24 Glass Photo Plate Albright and Wilson Exhibition stand 1982 25 Glass Photo Plate Albright and Wilson Exhibition stand 1982 26 Glass Photo Plate 6 men posed -
April 04, 2013
April 04, 2013 -One of the main uses of electrolysis is the production of pure elements from compounds -In 1808 Sir Humphrey Davy used electrolysis to discover Mg, Ca, Sr, and Ba -when trying to purify elements from solution, water can interfere with the reaction because often it is the SOA or SRA -to avoid interference from water, the compound can be melted, and the molten compound can act as the electrolyte (but this is difficult) The Electrolysis of Potassium The Electrolysis of Molten Chloride Solution Potassium Chloride April 04, 2013 The Electrolysis of Potassium The Electrolysis of Molten Chloride Solution Potassium Chloride Industrial Applications of Electrolysis April 04, 2013 Chlor-Alkali Cell A Downs Cell April 04, 2013 The Hall-Heroult Process The Refining of Aluminum Precious Metal No one knew about aluminum until 1825. That’s when a Danish chemist first extracted pinhead-sized bits of aluminum from a mineral called alumina. In 1884, aluminum was even chosen for a place of honor at the very tip of the Washington Monument, because it was such a rare metal. But, extracting aluminum from alumina was very difficult, and for most of the 1800s, aluminum was rare and expensive. It was so valuable that kings and queens had fine tea sets and ornamental objects made of aluminum. April 04, 2013 To refine aluminum using electrolysis, Al2SO4 was dissolved in a mineral called cryolite Hall's Original Samples of Aluminum April 04, 2013 Metal Plating -plating involves covering a metal object with a thin coating of another metal Examples: chrome bumpers, jewelry -the object to be plated is placed at the cathode -the anode contains the metal that will be plated (usually) -the electrolyte contains the ion of metal that will be plated A copper spoon is plated with silver Why should the cell be turned on before the spoon is connected? April 04, 2013 Refining Metals Through Electrolysis cathode: pure metal anode: impure metal -the anode dissolves and the pure metal is plated at the cathode April 04, 2013 Assignment: Read Section 13.3 of your textbook. -
4.3 Synthetic Graphite
BRNO UNIVERSITY OF TECHNOLOGY VYSOKÉ UČENÍ TECHNICKÉ V BRNĚ FACULTY OF ELECTRICAL ENGINEERING AND COMMUNICATION FAKULTA ELEKTROTECHNIKY A KOMUNIKAČNÍCH TECHNOLOGIÍ DEPARTMENT OF ELECTRICAL AND ELECTRONIC TECHNOLOGY ÚSTAV ELEKTROTECHNOLOGIE THE EFFECT OF ELECTRODE BINDERS TO ELECTROCHEMICAL PROPERTIES OF NEGATIVE ELECTRODE MATERIALS BACHELOR'S THESIS VLIV POJIV NA ELEKTROCHEMICKÉ VLASTNOSTI ZÁPORNÝCH ELEKTRODOVÝCH HMOT BAKALÁŘSKÁ PRÁCE AUTHOR András Zsigmond AUTOR PRÁCE SUPERVISOR Ing. Jiří Libich, Ph.D. VEDOUCÍ PRÁCE BRNO 2016 BRNO UNIVERSITY OF TECHNOLOGY Faculty of Electrical Engineering and Communication Department of Electrical and Electronic Technology Bachelor thesis Bachelor's study field Microelectronics and Technology Student: András Zsigmond ID: 154915 Year of study: 3 Academic year: 2015/16 TITLE OF THESIS: The Effect of Electrode Binders to Electrochemical Properties of Negative Electrode Materials INSTRUCTION: Get acquaint with Lithium-Ion batteries and their charactericti electrochemicla properties. Study operation principle of Litihum-Ion battery along with intercalaction process. Lead experiments which involve different kinds of binders and their using in electrodes. REFERENCE: Podle pokynů vedoucího práce. Assigment deadline: 8. 2. 2016 Submission deadline: 2. 6. 2016 Head of thesis: Ing. Jiří Libich, Ph.D. Consultant: doc. Ing. Jiří Háze, Ph.D. Subject Council chairman WARNING: The author of this bachelor thesis claims that by creating this thesis he/she did not infringe the rights of third persons and the personal and/or property rights of third persons were not subjected to derogatory treatment. The author isfully aware of the legal consequences of an infringement of provisions asper Section 11 and following of Act No 121/2000 Coll. on copyright and rights related to copyright and on amendments to some other laws (the Copyright Act) in the wording of subsequent directives including the possible criminal consequences asresulting from provisions of Part 2, Chapter VI, Article 4 of Criminal Code 40/2009 Coll. -
Exploitation Strategic Plan and Business Model - Final
Exploitation strategic plan and business model - final Deliverable 8.4 © Copyright 2019 The INTMET Consortium Project Funded by the European Commission under the Horizon 2020 Framework Programme. Grant Agreement No 689515 EXPLOITATION PLAN-FINAL D8.4 PROGRAMME H2020 – Environment and Resources GRANT AGREEMENT NUMBER 689515 PROJECT ACRONYM INTMET DOCUMENT Deliverable 8.4 TYPE (DISTRIBUTION LEVEL) ☒ Public ☐ Confidential ☐ Restricted DUE DELIVERY DATE M36 DATE OF DELIVERY January 31 2019 STATUS AND VERSION NUMBER OF PAGES WP / TASK RELATED WP 8, task 8.4, 8.5 WP / TASK RESPONSIBLE MinPol AUTHOR (S) Prof. Dr. Horst Hejny, Dr. Angelika Brechelmacher, Prof. Dr. Günter Tiess PARTNER(S) CONTRIBUTING FILE NAME Exploitation strategic plan and business model - final DOCUMENT HISTORY VERS ISSUE DATE CONTENT AND CHANGES 1.0 30/01/2019 First Revision 1.1 31/01/2019 Small corrections ClC final 31/01/2019 for submission DOCUMENT APPROVERS PARTNER APPROVER CLC Francisco Sánchez 2 | 34 EXPLOITATION PLAN-FINAL D8.4 TABLE OF CONTENTS 1. PURPOSE ............................................................................................................................................................................................... 6 2. BUSINESS MODEL .................................................................................................................................................................................. 7 2.1 BASIC IDEA ............................................................................................................................................................................................... -
Notes Electrochemistry FG Vylechmann, Ph.D
N O T E S E L E C T R OC H E M I S T R Y . l E HMANN PH . D . F . G v C , y N EW YORK ’ MCGRAW PUBLI SHIN G COMPAN Y 1 906 CHA LE R S H. SEN FF A TO KEN OF EST EEM AN D REGARD P R E F A C E . T HE principal aim kept in view in the preparation o f these notes has been the giving o f a clear and con cise presentation o f the general prin ciples which un derlie electro chemical science . Endeavor has been made to meet the needs of students entering upon the study o f electro chemistry an d o f chemists interested in the application of electrical energy to chemical problems . The literature o f electro chemistry counts as its o wn a ' number of standard works which treat in detail the theories of the scien ce , the methods of electro chemical analysis , and D f e . the applications of el ctro chemistry i fering from these , the present notes aim merely to offer a general survey of the subject , to serve as an introduction to its study and to aid in the securing of a proper understanding and appreciation u of the work along individ al lines . ha s In the chapter on ele ctrote chnolo gy , spe cial endeavor bee n made to secure the most recent and reliable data and full advantage has been taken o f the information given in leading techni cal journals and in the excellent monographs o f s : E m Wasseri er Lo u Foer ter lektro che ie g s ngen , and of : E Wright lectri c Furnaces and their Industrial Applications .