Thesis (Ph. D.)--John Hopkins University, 1920. / Biography.

Thesis (Ph. D.)--University of Chicago, 1938. / Reproduced from type-written copy. "Private edition, distributed by the University of Chicago libraries, Chicago, Illinois." Includes bibliographical references.

Thesis (Ph.D.)--University of Delaware, 2009. / Principal faculty advisor: Christopher J. Roberts, Dept. of Chemical Engineering. Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1956. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

No description available.

A systematic study of the excess thermodynamic properties of two-ring compounds and n-alkanes was conducted. The excess enthalpies were determined at 288,15 K and 298,15 K by using a flow microcalorimetric technique. The excess volumes of tetralin and cycloalkanes, and tetralin and --alkans at 288,15 K and 298,15 K were determined by using a vibrating tube densitometer. The results showed trends relating to the size and shape of the n-alkane and cycloalkan molecules. The theory developed by Flory was applied to the decalin + cycloalkane and + n-alkane systems and this gave qualitative predictions of the excess enthalpies from the excess volumes and vice versa. / KMBT_363 / Adobe Acrobat 9.53 Paper Capture Plug-in

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The kinetics of the hydrogen reduction of aqueous cupric perchlorate and sulphate solutions were studied at 160°C and 5 to 10 atm hydrogen pressure. In sulphate solutions the observed rates were consistent with a rate law, derived from previously proposed mechanisms, that has the form [ Equations omitted ] The rate constants of the hydrogen activation steps of the reaction are represented by k₁and k₃ which reflect the activation rates by Cu'' and Cu' respectively and have the values 3.2 X 10¯³M¯¹sec¯¹ and 6.4 X 10¯²M¯¹sec¯¹ at 160°C. The ratios of the back- to net forward-reaction rate constants are k-₁/k₂ for the Cu'' activation step and k-₃/k₄ for the Cu' activation step. These have values of approximately 0.13 and 0.45 respectively at 160°C. In perchlorate solutions the rates were also consistent with the rate law applying to sulphate solutions if a necessary correction due to perchlorate decomposition was taken into account. In this system the second term of this rate law was found to be much smaller and more difficult to resolve. For the first term the value of k₁ was found to be 6.7 X 10¯³M¯¹sec¯¹ at 160°C and the value of k-₁/k₂ was 0.51. Exchange experiments with deuterium in place of hydrogen were also done. These gave rates consistent with previously proposed mechanisms, but in perchlorate solutions much higher exchange rates were observed than in sulphate solutions. The indicated value of k₃ is approximately the same in perchlorate as in sulphate solutions and the indicated value of k-₃/k₄ is much greater in perchlorate solutions. / Applied Science, Faculty of / Materials Engineering, Department of / Graduate

The log K, ΔH° and ΔS° values for the interaction of several metal ions with the two isomers of the cyclic polyether, 2,5,8,15,-18,21 hexaoxatricyclo[20.4.0.0^9,14]hexacosane are reported. The stability order found for alkali metal ion interaction with either isomer is identical to the order of ion permeability through reconstituted biological membranes for structurally related antibiotics. The size of the metal ion is critical in determining the extent of interaction. A calorimetric titration study of proton ionization from several monosaccharides and derivatives, pyrimidine bases and their nucleosides, adenosine and its derivatives, and cycloheptaamylose is described. The heats of reaction obtained in this study show the acidity of adenosine to be associated with the ribose portion of the molecule and that the presence of both the 2' and 3'-hydroxyl groups results in a marked acidity increase compared to similar compounds lacking vicinal OH groups. The acidity in the sugars is associated with the 1 position.

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