Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
An apparatus for rapidly mixing two solutions and recording the light absorption, which was developed by Connick and Below, has been modified. The mixing characteristics were studied and models were developed in an attempt to umder stand the observed mixing phenomena. The apparatus was applied to a study of the kinetics of the reactions Fe/sup +++/ + SCN/sup -/ = FeSCN/sup ++/ and Fe/ sup +++/ Cl/sup -/ = FeCl/sup ++/ in aqueous solution, with both reactions having the forward rate law STAd(FeX/sup ++/)/dt = k/sub 1/ (Fe/sup +++/) (X/sup -/) + k/ sub 2/ (Fe/sup +++/)(X/sup -/)/(H/sup +)!, where X/sup -/ represents either SC N/ sup -/ or Cl/sup -/. The rate constants k/sub 1/ and k/sub 2/ have been measured as a function of temperature, and the heats and entropies of activation have been calculated. Mechanisms for the observed rate law have been discussed and the entropies of activation were compared with those for analogous reaction rates and with some equilibrium entropies of complexing. A rate for chloride complexing of ferric ion was obtained from nuclear magnetic resonance studies and compared with the results of the spectrophotometric kinetic study. (auth).
The Kinetics of the Complexing of Ferric Ion by Thiocyanate and Chloride Ions (thesis).
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
An apparatus for rapidly mixing two solutions and recording the light absorption, which was developed by Connick and Below, has been modified. The mixing characteristics were studied and models were developed in an attempt to umder stand the observed mixing phenomena. The apparatus was applied to a study of the kinetics of the reactions Fe/sup +++/ + SCN/sup -/ = FeSCN/sup ++/ and Fe/ sup +++/ Cl/sup -/ = FeCl/sup ++/ in aqueous solution, with both reactions having the forward rate law STAd(FeX/sup ++/)/dt = k/sub 1/ (Fe/sup +++/) (X/sup -/) + k/ sub 2/ (Fe/sup +++/)(X/sup -/)/(H/sup +)!, where X/sup -/ represents either SC N/ sup -/ or Cl/sup -/. The rate constants k/sub 1/ and k/sub 2/ have been measured as a function of temperature, and the heats and entropies of activation have been calculated. Mechanisms for the observed rate law have been discussed and the entropies of activation were compared with those for analogous reaction rates and with some equilibrium entropies of complexing. A rate for chloride complexing of ferric ion was obtained from nuclear magnetic resonance studies and compared with the results of the spectrophotometric kinetic study. (auth).
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
An apparatus for rapidly mixing two solutions and recording the light absorption, which was developed by Connick and Below, has been modified. The mixing characteristics were studied and models were developed in an attempt to umder stand the observed mixing phenomena. The apparatus was applied to a study of the kinetics of the reactions Fe/sup +++/ + SCN/sup -/ = FeSCN/sup ++/ and Fe/ sup +++/ Cl/sup -/ = FeCl/sup ++/ in aqueous solution, with both reactions having the forward rate law STAd(FeX/sup ++/)/dt = k/sub 1/ (Fe/sup +++/) (X/sup -/) + k/ sub 2/ (Fe/sup +++/)(X/sup -/)/(H/sup +)!, where X/sup -/ represents either SC N/ sup -/ or Cl/sup -/. The rate constants k/sub 1/ and k/sub 2/ have been measured as a function of temperature, and the heats and entropies of activation have been calculated. Mechanisms for the observed rate law have been discussed and the entropies of activation were compared with those for analogous reaction rates and with some equilibrium entropies of complexing. A rate for chloride complexing of ferric ion was obtained from nuclear magnetic resonance studies and compared with the results of the spectrophotometric kinetic study. (auth).
The Kinetics of the Complexing of Ferric Ion by Thiocyanate and Chloride Ions
Author: Claude Peter Coppel
Publisher:
ISBN:
Category : Chemical kinetics
Languages : en
Pages : 94
Book Description
Publisher:
ISBN:
Category : Chemical kinetics
Languages : en
Pages : 94
Book Description
The Iron(III) Thiocyanate Reaction
Author: Kevin C. de Berg
Publisher: Springer Nature
ISBN: 3030273164
Category : Science
Languages : en
Pages : 99
Book Description
This Brief presents an historical investigation into the reaction between ferric ions and thiocyanate ions, which has been viewed in different ways throughout the last two centuries. Historically, the reaction was used in chemical analysis and to highlight the nature of chemical reactions, the laws of chemistry, models and theories of chemistry, chemical nomenclature, mathematics and data analysis, and instrumentation, which are important ingredients of what one might call the nature of chemistry. Using the history of the iron(III) thiocyanate reaction as a basis, the book’s main objective is to explore how chemistry develops its own knowledge base; how it assesses the reliability of that base; and how some important tools of the trade have been brought to bear on a chemical reaction to achieve understanding, a worthwhile goal of any historical investigation.
Publisher: Springer Nature
ISBN: 3030273164
Category : Science
Languages : en
Pages : 99
Book Description
This Brief presents an historical investigation into the reaction between ferric ions and thiocyanate ions, which has been viewed in different ways throughout the last two centuries. Historically, the reaction was used in chemical analysis and to highlight the nature of chemical reactions, the laws of chemistry, models and theories of chemistry, chemical nomenclature, mathematics and data analysis, and instrumentation, which are important ingredients of what one might call the nature of chemistry. Using the history of the iron(III) thiocyanate reaction as a basis, the book’s main objective is to explore how chemistry develops its own knowledge base; how it assesses the reliability of that base; and how some important tools of the trade have been brought to bear on a chemical reaction to achieve understanding, a worthwhile goal of any historical investigation.
Nuclear Science Abstracts
Register of the University of California
Author: University of California (1868-1952)
Publisher:
ISBN:
Category : Universities and colleges
Languages : en
Pages : 1662
Book Description
Publisher:
ISBN:
Category : Universities and colleges
Languages : en
Pages : 1662
Book Description
Commencement[programme]
Author: University of California, Berkeley
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 228
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 228
Book Description
Summaries of Dissertations Submitted in Partial Satisfaction of the Requirements for the Degree of Doctor of Philosophy
Author: University of California, Berkeley. Graduate Division, Northern Section
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 892
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 892
Book Description
Summary of the Dissertation Submitted in Partial Satisfaction of the Requirements for the Degree of Doctor of Philosophy
Author: University of California, Berkeley. Graduate Division
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 636
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 636
Book Description
Comprehensive Dissertation Index, 1861-1972: Chemistry
Author: Xerox University Microfilms
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 960
Book Description
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 960
Book Description