Physical Sciences and Mathematics Commons^™

A Colorimetric Coulometer, Clayton C. Roth

Master's Theses

In the study of many electrochemical processes, such as, surface adsorption on electrodes, a simple, rapid, and relatively accurate coulometer that will measure .01 to 1.0 coulombs, would be extremely useful. This project was commenced to investigate the feasibility of an entirely different approach for coulometric analysis for application in this range.

This new type of coulometer utilizes a colorimeter for determining the amount of coulombs passed through coulometer cell. Consequently, any electrode process which of its own nature is color-producing, or a process which, in turn, can actuate a color indicator, is a potential reaction for this colorimetric couloumeter.

A Microcoulometric Study Of Adsorption On The Hydrogen Electrode, Ray Douglas Sothern

Master's Theses

Thie work was begun with the intention of studying the adsorption of organic compounds upon the hydrogen electrode. The fact that certain substances, even when present in extremely low concentration, will poison the electrode with which they are in contact shows clearly that these substances must be strongly adsorbed on the electrode surface. The problem or determining the amount absorbed at various concentration, temperatures, and pressures, however, required a method capable of detecting quantities of adsorbate in the ordor of 10^-11 moles.

Some Reductions Of Substituted Benzalacetophenones By Aluminum Isopropoxide And Lithium Aluminum Hydride, Calvin Lyndall Fisher

Master's Theses

While the literature contains a lnrge volume of material on the reduction of carbonyl compounds, the historical section of this thesis will be chiefly con­cerned with the reduction of -- unsaturated carbonyl compounds by catalytic hydrogenation, metal combinations, aluminum alkoxides and by lithium aluminum hydride.

The purpose of this thesis is to study the effect various substituents have on a conjugated system when the system is undergoing reduction by lithium aluminum hydride.

2-Pyrrolidinoethyl Esters Of Para Alkoxybenzoic And Para Alkox Alkoxycinnamic Acids, Michael James Fletcher

Master's Theses

One of the most important groups of local anesthetics is the class of alkyl and dialkylaminoalkyl esters of aromatic acids. Of these compounds, the diethylaminoethyl esters are particularly valuable.

It is obvious that pyrrolidine is merely a modified form of diethylamine. The purpose of this work is to learn the effect of substituting the N-pyrrolidyl nucleus for the diethyl amino nucleus in various esters of the local anesthetic type.

Phase Behavior Of Sodium Stearate In Anhydrous Cyclohexane, Walter Edward Reid Jr.

Master's Theses

Soap solutions, aqueous and non-aqueous, are characteristic in that they firm colloidal systems at certain concentrations, the properties of which are influenced by temperature and pressure. Application of the Gibbs phase rule to such systems makes possible the location of the various phases of a particular system and hence enables phase diagrams to be constructed. For systems of soap-hydrocarbons such as are found in fuels, beauty preparations, greases, medical preparations, etc., a phase diagram would show very readily the most satisfactory composition for the conditions desired.

Cyclic Derivatives Of Tris (Hydroxymethyl) Aminomethane : Monourethans And Ureas, Julian Lee Rush Jr.

Master's Theses

The purpose of the work reported in this thesis was to study the chemistry of tris(hydroxymethyl)aminomethane (A), H2Nc(cH20H) 3, a beta-hydroxy amine.

Some Reactions Of Tris (Hydroxymethyl) Aminomethane, Ralph Walton Raiford

Master's Theses

Most of the work on alkanolamines has been confined to the preparations and reactions of the ethanolamines. The results reported herein deal with the reactions of H₂NC(CH₂OH)₃, tris(hydroxymethly)aminomethane, which is a beta-hydroxy amine.

Alkylaminoalkyl Esters Of 2-Thiophene Carboxylic And Furoic Acids, Henry Alouis Rutter Jr.

Master's Theses

The association of local anesthetic activity with alkaninoalkyl ester of aromatic carbonyl acids has been well susbstantietes. Compounds obtained as varieties of the "anesthesiophoric" group are usually capable of some degree of local anesthetic activity.

Alkylaminoalkyl Aryoxyacetates, William Kenneth Easley

Master's Theses

Numerous inInvestigations into the preparation, properties, and effects plant growth substances have been carried out. It has been shown that phenoxyacetic acids, napthoxyacetic acids, esters, anides and salts of phenoxyacetic acids and certain substituted products of these acids are plant growth promoting substances.

It is the purpose ot this work to produce esters of phenoxyacetic and napthoxyacetic acids which contain a secondary amino group and as a result of their ability to form acid salts, such as hydrochlorides, water soluble compounds. These compounds would be readily applicable to plants in sprays.

Polyhydroxyamines, John Wotiz

Master's Theses

"The industrial growth of aliphatic chemistry, which has constituted one of the outstanding advances of recent years, has been almost entirely in the field of hydrocarbons and their simpler chlorine and oxygen derivatives… Representative of the aliphatic amines, possibly only the methyl, amyl and ethanol amines may be said to have been commercially available. And yet the field of aliphatic nitrogen chemistry possesses the greatest variety of known aliphatic compounds; there are at least several nitrogen analogs of each oxygen compound, often more stable, more definitely characterized, and more reactive chemically." Relatively few aminoalcohols, especially polyhydroxyaminoalcohols have been prepared. Due …

The Kolbe Synthesis With Alkyl Ortho-Xenols, Sidney Harris

Master's Theses

The phenol series of compounds has shown marked therapeutic activity. Generally there are two types phenols used as germicides and fungicides - (a) the very soluble type such as the resorcinols and ( b) the less soluble type such as the phenyl phenols and salicylic acid and its derivatives.

Condensation Of Olefins With P-Mercapto-Diphenyl, Raymond Michael Abrams

Master's Theses

Markownikow's rule states that in the addition to unsaturated ,negative groups add to the carbon atom having the least number of Hydrogen atoms. It has been observed that mercaptans and hydrogen sulfide add to olefine contrary to Markownikow's rule in the presence of sodium alcoholates or sulfuric acid.

Preparation Of Thianthrene, Eugene Alton Talley

Master's Theses

This work was begun in an attempt to study further the preparation of thianthrene from 2-dichlorobenzene and alkali sulfides. g_-Dichlorobenzene is a liquid by-product in the preparation of its solid isomer, E-dichlorobenzene, which is used extensively for controlling moths and peach tree borers. The study of the preparation of thianthrene from the liquid isomer was undertaken because the preparation might develop into a possible use for the large quantities available.

Thianthrene might be made from 2-dibromo- and 2-diiodo-benzene but these are not as cheap or as easily obtained as the dichloro derivative and were not used in this study various …

Some Reactions Of Creatinine With Certain Aliphatic Halogen Derivatives, Howard Edwards Wright Jr

Master's Theses

The object of this investigation is to prepare some derivatives of creatinine from certain aliphatic halogen compounds with emphasis on the nature of the reactions through which condensation takes place.

Some Aldehyde Condensation Derivatives Of Creatinine, Clarence England Denoon Jr.

Master's Theses

When insulin, a substance which is used to reduce sugar in the blood is hydrolysed, products are obtained bearing some similarity to creatinine. Therefore, reasoning conversely, creatinine derivatives might be expected to posses as a hypo- glycemic (sugar reducing) effect.