Lauda Circulators

1
NEW BOOKS Advances in Electrochemistry and Electrochemical Engineering. Vol. 6, Electrochemistry. Paul Delahay, Editor, xi + 482 pages, Interscience Publishers, Inc., New York, Ν. Υ. 1967. $19. Reviewed by Oonald E. Smith, De- partment of Chemistry, Northwestern University, Evanston, III. 60201 This volume is the sixth in a series edited by Professor Paul Delahay and Charles W. Tobias. The present vol- ume, edited by Professor Delahay, at the very least maintains the high stan- dards of excellence established by its predecessors in the series. All of the five chapters were written by authors of eminent qualification and reknown in their respective fields. In this re- viewer's opinion, all but one of the chapters must be considered distinc- tive on one or more counts. The reader is assaulted with a tour de force of the first magnitude in the opening chapter by C. A. Barlow, Jr., and J. Ross MacDonald on Theory of Discreteness of Charge Effects In the Electrolyte Compact Double Layer. The subject in question is both difficult and specialized, yet highly important to most areas of electrochemical sci- ence. The Barlow-MacDonald review and treatment of this frontier area is masterful indeed. One has to admire the authors for the supreme effort they must have devoted to organizing this 199-page manuscript from the many difficult-to-read, often contradictory publications in the area. This chapter is likely to be heavy going to most read- ers, particularly the mathematically weak-at-heart. However, the authors have generously mixed much emi- nently readable prose between mathe- matical arguments to inform the reader of the underlying reasoning and conclu- sions. This reviewer must confess to being unqualified to judge the sound- ness of most of the quantitative treat- ments, but the quality of the qualita- tive presentation is above question. As a review, critique, and presentation of original concepts, this work must be considered first class. The Oxygen Electrode on Noble Metals by J. P. Hoare distinguishes it- self in the thoroughness with which it reviews one of the most extensively in- vestigated subjects in modern electro- chemistry. By good organization and a concise style, the author managed to compile, discuss, compare and render incisive judgment on a vast body of in- formation dealing with the oxygen elec- trode reaction utilizing just 87 pages. The coverage encompasses contribu- tions dating back to the turn of the century, but emphasis is placed on the more up-to-date research. The chapter on Electrochemical Kinetics of Metal Complexes by Jiri Koryta is the only contribution in this volume which this reviewer does not consider distinctive. The subject in question is of sufficient scope that it easily could have been accorded a 100- 200 page treatment, particularly if the author considered the many exciting developments in relevant methodology and theory. Instead, Dr. Koryta chose to confine his discussion to a short (38 pages) treatment of certain important recent developments. In fairness to Dr. Koryta it should be mentioned that this subject has been reviewed extensively of late and Dr. Koryta has contributed in excellent style to these recent reviews. With this in mind, the fact that he decided to confine the present chapter to discuss- ing just the most recent developments in certainly defensible. The lack of scope of the chapter prevents one from considering it distincth'e, but it is otherwise well done. The fourth chapter on Electrochemi- cal Response of Porous and Rough Electrodes by Robert de Levie deals with a subject whose importance to users of solid and porous electrodes is exceeded only by its mathematical in- transigence. Professor de Levie has a well-established flair for attacking such difficult electrochemical mass transfer problems with delightful elegance and sophistication (at least by this re- viewer's standards). The present chap- ter is no exception. Basically, it con- siders in detail the general theoretical problems associated with calculating the current-potential distributions at electrodes whose geometry for mass transport is irregular, with emphasis on the obvious cases ; the porous and rough electrodes. However, even the polar- ographer who recognizes only the drop- ping mercury electrode will find some- thing of interest in this excellent chap- ter. Insulator Electrode Reactions by W. Mehl and J. M. Hale was probably the most intriguing chapter to this re- viewer, simply because it deals with a rather new area which is quite foreign to most electrochemists, yet eminently interesting as presented by the authors. Mehl and Hale have treated this sub- ject in a manner which makes readily understandable the basic principles and Control your temper with a Laiula Circulator Need to temper glassware or other laboratory equipment? Let a lauda Circulator do it. A variety of different models fK-2 shown here) circulate water, ON or other liquids at constant, electronically- controlled temperatures up to 300* C., ; or as low as—120° C Each features Stain I ess-steel construction of all com- ponents in contact with bath liquid, manual drainage and flow valves; and. automatic excess load protection for pump. Dur new 36-page catalog gives you all the details. Just write: lauda Circulators, Division of Brinkmann Instruments, Cantiague Road, Westbury, N.Y. 11590 AEW1SK3NOF BR11SJKMANN Lauda Circulators Circle Να. 22 on Readers' Service Card VOL. 40, NO. 3, MARCH 1968 · 113 A

Transcript of Lauda Circulators

Page 1: Lauda Circulators

NEW BOOKS

Advances in Electrochemistry and Electrochemical Engineering. Vol. 6, Electrochemistry. Paul Delahay, Editor, xi + 482 pages, Interscience Publishers, Inc., New York, Ν. Υ. 1967. $19.

Reviewed by Oonald E. Smith, De­partment of Chemistry, Northwestern University, Evanston, III. 60201

This volume is the sixth in a series edited by Professor Paul Delahay and Charles W. Tobias. The present vol­ume, edited by Professor Delahay, at the very least maintains the high stan­dards of excellence established by its predecessors in the series. All of the five chapters were written by authors of eminent qualification and reknown in their respective fields. In this re­viewer's opinion, all but one of the chapters must be considered distinc­tive on one or more counts.

The reader is assaulted with a tour de force of the first magnitude in the opening chapter by C. A. Barlow, Jr., and J. Ross MacDonald on Theory of Discreteness of Charge Effects In the Electrolyte Compact Double Layer. The subject in question is both difficult and specialized, yet highly important to most areas of electrochemical sci­ence. The Barlow-MacDonald review and treatment of this frontier area is masterful indeed. One has to admire the authors for the supreme effort they must have devoted to organizing this 199-page manuscript from the many difficult-to-read, often contradictory publications in the area. This chapter is likely to be heavy going to most read­ers, particularly the mathematically weak-at-heart. However, the authors have generously mixed much emi­nently readable prose between mathe­matical arguments to inform the reader of the underlying reasoning and conclu­sions. This reviewer must confess to being unqualified to judge the sound­ness of most of the quantitative treat­ments, but the quality of the qualita­tive presentation is above question. As a review, critique, and presentation of original concepts, this work must be considered first class.

The Oxygen Electrode on Noble Metals by J. P. Hoare distinguishes it­self in the thoroughness with which it reviews one of the most extensively in­vestigated subjects in modern electro­chemistry. By good organization and a concise style, the author managed to compile, discuss, compare and render incisive judgment on a vast body of in­formation dealing with the oxygen elec­trode reaction utilizing just 87 pages. The coverage encompasses contribu­tions dating back to the turn of the

century, but emphasis is placed on the more up-to-date research.

The chapter on Electrochemical Kinetics of Metal Complexes by Jiri Koryta is the only contribution in this volume which this reviewer does not consider distinctive. The subject in question is of sufficient scope that it easily could have been accorded a 100-200 page treatment, particularly if the author considered the many exciting developments in relevant methodology and theory. Instead, Dr. Koryta chose to confine his discussion to a short (38 pages) treatment of certain important recent developments. In fairness to Dr. Koryta it should be mentioned that this subject has been reviewed extensively of late and Dr. Koryta has contributed in excellent style to these recent reviews. With this in mind, the fact that he decided to confine the present chapter to discuss­ing just the most recent developments in certainly defensible. The lack of scope of the chapter prevents one from considering it distincth'e, but it is otherwise well done.

The fourth chapter on Electrochemi­cal Response of Porous and Rough Electrodes by Robert de Levie deals

with a subject whose importance to users of solid and porous electrodes is exceeded only by its mathematical in­transigence. Professor de Levie has a well-established flair for attacking such difficult electrochemical mass transfer problems with delightful elegance and sophistication (at least by this re­viewer's standards). The present chap­ter is no exception. Basically, it con­siders in detail the general theoretical problems associated with calculating the current-potential distributions at electrodes whose geometry for mass transport is irregular, with emphasis on the obvious cases ; the porous and rough electrodes. However, even the polar-ographer who recognizes only the drop­ping mercury electrode will find some­thing of interest in this excellent chap­ter.

Insulator Electrode Reactions by W. Mehl and J. M. Hale was probably the most intriguing chapter to this re­viewer, simply because it deals with a rather new area which is quite foreign to most electrochemists, yet eminently interesting as presented by the authors. Mehl and Hale have treated this sub­ject in a manner which makes readily understandable the basic principles and

Control your temper with a Laiula Circulator

Need to temper glassware or other laboratory equipment?

Let a lauda Circulator do it. A variety of different models

fK-2 shown here) circulate water, ON or other liquids at constant, electronically-controlled temperatures up to 300* C.,; or as low as—120° C Each features Stain I ess-steel construction of all com­ponents in contact with bath liquid, manual drainage and flow valves; and. automatic excess load protection for pump.

Dur new 36-page catalog gives you all the details. Just write: lauda Circulators, Division of Brinkmann Instruments, Cantiague Road, Westbury, N.Y. 11590

AEW1SK3NOF

BR11SJKMANN

Lauda Circulators

Circle Να. 22 on Readers' Service Card

VOL. 4 0 , N O . 3, MARCH 1968 · 1 1 3 A