Pub Date : 2019-12-22DOI: 10.1088/1945-6859/75/1/484
{"title":"Erratum: “Dielectric Constant and Dielectric Loss of Plastics as Related to Their Composition” [Trans. Electrochem. Soc., 74, 113 (1938)]","authors":"","doi":"10.1088/1945-6859/75/1/484","DOIUrl":"https://doi.org/10.1088/1945-6859/75/1/484","url":null,"abstract":"","PeriodicalId":118206,"journal":{"name":"Transactions of the Electrochemical Society","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133190899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Preparation of a Dry Cell Depolarizer by Air Oxidation of Manganous Hydroxide","authors":"L. C. Copeland, F. Griffith, C. B. Schertzinger","doi":"10.1149/1.3071810","DOIUrl":"https://doi.org/10.1149/1.3071810","url":null,"abstract":"","PeriodicalId":118206,"journal":{"name":"Transactions of the Electrochemical Society","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1947-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115294484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An x‐ray diffraction study has been made of the various types of manganese dioxide with particular emphasis on those prepared chemically. A review of the literature suggests that several types have received different names by different investigators. A diffraction pattern of ramsdellite, uncontaminated by the lines of pyrolusite, is reported. Three modifications of are described and their relation to ramsdellite and pyrolusite is discussed. The manner in which lead is combined in a commercial manganese dioxide by‐product, and the part played by potassium in determining the course of various transformations, are also discussed.
我们对各种类型的二氧化锰进行了 X 射线衍射研究，重点是化学制备的二氧化锰。文献回顾表明，不同的研究者对几种类型的二氧化锰有不同的命名。报告了一种未受辉绿岩线污染的红柱石衍射图样。描述了三种变体，并讨论了它们与红柱石和辉绿岩的关系。还讨论了铅在商业二氧化锰副产品中的结合方式，以及钾在决定各种转化过程中所起的作用。
{"title":"An X‐Ray Diffraction Study of Manganese Dioxide","authors":"W. Cole, A. Wadsley, A. Walkley","doi":"10.1149/1.3071811","DOIUrl":"https://doi.org/10.1149/1.3071811","url":null,"abstract":"An x‐ray diffraction study has been made of the various types of manganese dioxide with particular emphasis on those prepared chemically. A review of the literature suggests that several types have received different names by different investigators. A diffraction pattern of ramsdellite, uncontaminated by the lines of pyrolusite, is reported. Three modifications of are described and their relation to ramsdellite and pyrolusite is discussed. The manner in which lead is combined in a commercial manganese dioxide by‐product, and the part played by potassium in determining the course of various transformations, are also discussed.","PeriodicalId":118206,"journal":{"name":"Transactions of the Electrochemical Society","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1947-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126768566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The influence of current density, ethanol concentration, and current concentration on the oxidation of ethanol to acetic acid in dilute sulfuric acid solution at platinum gauze anodes has been investigated. The maximum current efficiency, 85%, was obtained at 40° C and 0.2 amp./cm.2, the highest current density tried. Optimum alcohol concentration is about 20%. Efficiency can be raised 2% to 3% by the use of an oxygen carrier, and, at the same current density, is higher at higher current concentration, no maximum being found for this relation within the limits studied. Upwards of 5% increase in efficiency was obtained by substituting sheet lead for platinum gauze as anode material. Energy consumption ranged from 9.9 to 13.8 kw.‐hr./kg. acetic acid, depending on conditions of operation and cell design.
{"title":"Electrolytic Oxidation of Ethyl Alcohol to Acetic Acid","authors":"G. Zeller","doi":"10.1149/1.3071824","DOIUrl":"https://doi.org/10.1149/1.3071824","url":null,"abstract":"The influence of current density, ethanol concentration, and current concentration on the oxidation of ethanol to acetic acid in dilute sulfuric acid solution at platinum gauze anodes has been investigated. The maximum current efficiency, 85%, was obtained at 40° C and 0.2 amp./cm.2, the highest current density tried. Optimum alcohol concentration is about 20%. Efficiency can be raised 2% to 3% by the use of an oxygen carrier, and, at the same current density, is higher at higher current concentration, no maximum being found for this relation within the limits studied. Upwards of 5% increase in efficiency was obtained by substituting sheet lead for platinum gauze as anode material. Energy consumption ranged from 9.9 to 13.8 kw.‐hr./kg. acetic acid, depending on conditions of operation and cell design.","PeriodicalId":118206,"journal":{"name":"Transactions of the Electrochemical Society","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1947-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115213042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Semi‐Quantitative Method for Measuring the Ductility of Chromium Electrodeposits","authors":"M. Wyllie","doi":"10.1149/1.3071840","DOIUrl":"https://doi.org/10.1149/1.3071840","url":null,"abstract":"","PeriodicalId":118206,"journal":{"name":"Transactions of the Electrochemical Society","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1947-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123498558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
When carbon is exposed to oxygen in the presence of acid, it develops oxidizing characteristics measurable as potential or as capacity to oxidize reducing agents such as ferrous iron. Sorption of both acid and oxygen is essential to the development of oxidizing properties. Quantitative correlations of active oxygen and potential with acid sorption are given for several carbons, and the results of miscellaneous experiments indicating a possible chemical mechanism for the formation of active surface complexes on carbon are presented.
{"title":"Electrode Potentials of Carbon in Acid Electrolytes","authors":"N. M. Winslow","doi":"10.1149/1.3071830","DOIUrl":"https://doi.org/10.1149/1.3071830","url":null,"abstract":"When carbon is exposed to oxygen in the presence of acid, it develops oxidizing characteristics measurable as potential or as capacity to oxidize reducing agents such as ferrous iron. Sorption of both acid and oxygen is essential to the development of oxidizing properties. Quantitative correlations of active oxygen and potential with acid sorption are given for several carbons, and the results of miscellaneous experiments indicating a possible chemical mechanism for the formation of active surface complexes on carbon are presented.","PeriodicalId":118206,"journal":{"name":"Transactions of the Electrochemical Society","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1947-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116360757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rapid Determination of the Calcium Content of Lead‐Calcium Alloys by Titrating in the Molten State with Metallic Antimony","authors":"G. Bouton, G. S. Phipps","doi":"10.1149/1.3071821","DOIUrl":"https://doi.org/10.1149/1.3071821","url":null,"abstract":"","PeriodicalId":118206,"journal":{"name":"Transactions of the Electrochemical Society","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1947-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123670755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Production of Fused Silica","authors":"B. A. Rogers, W. Kroll, H. P. Holmes","doi":"10.1149/1.3071809","DOIUrl":"https://doi.org/10.1149/1.3071809","url":null,"abstract":"","PeriodicalId":118206,"journal":{"name":"Transactions of the Electrochemical Society","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1947-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132959474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Automatic Recording of Titrations","authors":"J. Barredo, J. K. Taylor","doi":"10.1149/1.3071832","DOIUrl":"https://doi.org/10.1149/1.3071832","url":null,"abstract":"","PeriodicalId":118206,"journal":{"name":"Transactions of the Electrochemical Society","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1947-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123151017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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