Physical Sciences and Mathematics Commons^™

Cyclization Of W-Tertiary Butyl Uramido Benzoic Acid, John R. Lovett

Chemistry Honors Papers

This 13 page thesis investigates the cyclization of w-tertiary butyl uramido benaoic acid and establishes the equation for the resulting reaction.

A Simple Apparatus For Demonstrating Bernouli's Principle, G. M. Wissink

Journal of the Minnesota Academy of Science

No abstract provided.

The Determination Of Chlorine In Alkyl Chlorobenzoates To Establish Their Identity And Purity, Clifford R. Berres

Bachelors’ Theses

Four years ago an investigation began at Marquette University with the purpose of determining the value of alkyl chlorobenzoates as derivatives for alcohols in characterization work. The outcome of this initial investigation was the preparation of thirty compounds previously unreported in the literature, namely, the methyl through decyl, nonyl excepted, ortho- and para-chlorobenzoates, and 2,4 and 3,4 dichlorobenzoates. The method of preparation and physical constants of these compounds were determined by Mr. Robert Johnson who presented a thesis on the "Preparation of Alkyl Chlorobenzoates and Their Application as Alcohol Derivatives" in June, 1949.

A continuance of this investigation was undertaken …

The Reaction Of Some Sodium Salts Of Fatty Acids And Benzoic Acid With Α-Bromobenzyl Cyanide, Richard W. Perkins

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Fife (4) and O'Shaughnessy (12) have made a series of di-esters by allowing the sodium salts of various fatty acids to react with ethyl monochloracetate according to the following equation:

RCO₂Na ≠ ClCH₂CO₂C₂H₅ ---------> RCO₂CH₂CO₂C₂H₅ ≠ NaCl .

The mechanism of the reaction appears to be ionic and to involve the attack of an RCO₂^- ion on the carbon atom to which the chlorine atom is attached. As the RCO₂^- approaches this carbon atom the chlorine atom moves …

The Preparation Of The Heavy Metal Soaps Of Naphthenic Acids, Frederick H. Owens

Chemistry Honors Papers

This 13 page thesis examines the preparation of heavy metal soaps from purified naphthenic acids.

Itaconic Acid Derivatives Of P-Amino Alkyl, Alkyl Sulfone, Wilbur B. Clarke

Electronic Thesis and Dissertation

This investigation is concerned with the preparation of 1(p-R2 Sulfonyl)-phenyl-5-oxo-3-pyrrolidine carboxylic acid by direct fusion of itaconic acid with the respective p-Amino phenyl alkyl or aryl sulfone, and is a continuation of work previously reported.

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.

Ceramic Uses Of Arkansas Nepheline Syenite, Harry J. Reynolds

Journal of the Arkansas Academy of Science

No abstract provided.

A Study Of The Factors Which Influence Selectivity In Liquid Extraction., Robert Christie Binning

LSU Historical Dissertations and Theses

No abstract provided.

Acetic-Oxalic Anhydride. Part I. A Study Of Some N-Alkyl-Cyclohexylcarbinols. Part Ii., Walter Maurey Henley

LSU Historical Dissertations and Theses

No abstract provided.

Studies Of The Kinetics Of Electrode Processes., George Louis Stiehl

LSU Historical Dissertations and Theses

No abstract provided.

The Reaction Of Diphenylketenephenylimine And Phenyl-Lithium. Part I. The Bromo-2-Nitro-Benzoic Acids. Part Ii., Tillman Rupert Pullig

LSU Historical Dissertations and Theses

No abstract provided.

The Urea Adducts Of Certain Esters Containing Twenty Carbons, Donald Eugene Johnson

University of the Pacific Theses and Dissertations

Urea has the interesting and unexpected property of forming solid complexes with many straight-chained organic compounds. So selective is the formation of these complexes with linear aliphatic compounds that it provides a means of separation form the analogous branched and cyclic compounds. Linear esters derived from normal saturated and unsaturated esters give adducts also but not to the same extent. Although many linear aliphatic compounds form adducts, the compounds so formed have varying degrees of stability depending on molecular weight, saturation and the shape of the molecule.

The purpose of this investigation is to determine the effect of the position …

Thiocyanate Complexes Of Osmium, Craig Albert Townsend Jr.

University of the Pacific Theses and Dissertations

Osmium is a hard grey brittle metal which scratches glass. It has a melting point of 2700[degree]C, and a specific gravity of 22.4, which is greater than any other known substance. The grey color of osmium resembles the grey color of iron and ruthenium. Osmium was discovered in 1803 by Tennant in the insoluble residue remaining after treating an alloy of the platinum metals with acid.

Osmium occurs in nature alloyed with the other metals of the platinum group. One type of alloy includes all six of the of the platinum metals, osmium, iridium, platinum, ruthernium, rhodium and palladium. Osmium …

The Effect Of Cross-Linkage On Internal Diffusion In Dowex-50 Ion Exchange Resin, John Paul Peterson Jr.

University of the Pacific Theses and Dissertations

As far back as the time of Aristotle sand filters were used to purify water. However it was not until the time of Thompson and Way (1848), two English agricultural chemists, that the idea of actual exchange of ions was proposed. Ion exchange has been investigated extensively, resulting in applications to softening of water, purification of sugar, separation of compounds, recovery of metals, many pharmaceutical separations and many others.

It has been proposed that the internal diffusion should be related to the internal structure of the ion exchange resin. The object of this research was to measure the internal diffusion …

Ultraviolet Absorption Spectra Of Quinoxaline And Some Of Its Derivatives, Fred Dale Huillet

Theses and Dissertations

A long term research program into the chemistry of quinoxalines has been instituted at Brigham Young University with the aim of preparing the vinylquinoxalines so that their 1,4-addition reactions might be studied. The literature of quinoxaline chemistry has been thoroughly reviewed and assembled. Methods of preparing 2-methyl- and 2,3-dimethylquinoxaline have been studied and improved but all attempts to prepare the vinylquinoxalines have been unsuccessful. In the course of these attempts several compounds of unknown structure were prepared. The purpose of this investigation is to study the spectra of various known quinoxaline derivatives and to attempt to identify the unknowns by …

A Study Of The Kinetics And The Free Radicals Involved In The Low-Pressure, Vapor-Phase Pyrolysis Of Toluene, Robert E. Williams

Chemistry and Chemical Biology ETDs

This research was undertaken to study the pyrolysis of toluene in the vapor phase.

Many pyrolytic reactions of toluene have been studied by others, but the difficulty of controlling the reactions and the complexity of the products have not allowed much successful application of the results. The present work was an endeavor to better understand the reaction mechanisms and the intermediates involved in pyrolysis.

Specifically, the problem was to study the discrepancies between the results reported by M. Szwarc and by Hein and Mesee.

The Separation Of Antimony 125 From Solutions Of Neutron Irradiated Tin Salts, Joseph D. Robinson

Chemistry and Chemical Biology ETDs

Because of the importance of high specific activities of radioactive species considerable experimental work has been done on the preparation of "carrier-free" tracers. In surveying the literature on the preparation of carrier-free antimony only one method was found. The method reported involves the deuteron bombardment of tin; solution of the target in agua regia; addition of cadmium carrier; precipitation of the cadmium as the sulfide which carries antimony, using oxalate ion to complex the tin; solution to the sulfides of cadmium and antimony in concentrated hydrochloric acid; distillation of tin from cadmium and antimony contained in in perchloric acid with …

Collector-Depressant Equilibria For The Flotation System Potassium Ethyl Xanthate-Potassium Cyanide-Molybdenite, Connell Bolton Roberts

Theses and Dissertations

This dissertation involves a study of the collector-depressant equilibria of the flotation system potassium ethyl xanthate-potassium cyanide-molybdenite, based upon mineral-air bubble contact measurements made by a modified captive bubble technique. The Cook theory of single site free acid adsorption is used to interpret the data. The standard free energies of adsorption of ethyl xanthic acid and hydrocyanic acid on molybdenite are calculated.

Polargraphic Measurement Of Reaction Rates Of Diazonium Salts, Gregory W. Daues

Chemistry and Chemical Biology ETDs

If a colorimetric method is used for following the reactions by tracing the increase in dye concentration, only reactions which form soluble dyes can be studied. Gasometric techniques are limited in that a sample must be removed from the reaction vessel and the diazonium salt decomposed by means of a catalyst in order to measure the liberated nitrogen. The latter method of analysis lends itself more readily to studies of the rate of decomposition of diazonium salts under various conditions, such as, the presence of ultra-violet light or exposure to high temperatures.

Thermodynamic Properties Of Water Absorbed On Silica, Conrad V. Hatch

Theses and Dissertations

The object of the work presented in this thesis was to obtain quantitative values of the thermodynamic changes in water upon adsorption by silica. Two methods were used. The first was a determination of the differential entropy and heat of adsorption independent of any theory of adsorption. The second method included a new interpretation of the "c" constant of the Brunauer, Emmett, and Teller Theory in which c was expressed in terms of the standard free energy of adsorption. The experimental data gave satisfactory results in determining the differential heat and entropy of adsorption. The results obtained in determining the …

The Kinetics Of The Exchange Between Diiodotyrosine And Iodine, Alfred H. Zeltzmann

Chemistry and Chemical Biology ETDs

The rate of exchange of iodine with diiodotyrosine in squamous solution was studied as a function of the concentrations of both reactants, of the pH, and of the temperature. The concentration of diiodotyrosine was varied from 0.0000475 to 0.01251 moles per liter and that of the iodine from 0.0000103 to 0.000395 moles per liter. The upper limits of concentration studied were determined by the solubilities of both the iodine and diiodotyrosine. The ratio of concentration of diiodotyrosine to that of iodine was varied from 227 to 0.5. the temperature was varied from 25.1 degrees C to 42.1 degrees C, and …

The Thermodynamics Of Technetium And Its Compounds, James W. Cobble

Doctoral Dissertations

No abstract provided.

Investigation Into The Synthesis Of Indazole, Max Peter Dreyfuss

Honors Theses

These investigations were undertaken in order to study the effect that various acyl or aroyl groups on o-toluidine have on the yield of indazole, when the latter is prepared by the methods of Barclay, et. al. (1) as modified by Rzeszotarski (23). In addition further information on the mechanism of the reaction and on the structure of indazole was sought from these data.

Electrodeposition With Graded Cathode Potential, William Mairs Earnest

Honors Theses

In a constant current electrolysis, which is the unusual method of determining a substance quantitatively by electrodeposition, a single metal, in solution, is plated out on the cathode of the electrolysis cell. The current is maintained fairly constant by adjustment, little attention is paid to the potential applied to the cell. This method may be used if there is only one metal in solution, or it may actually be used to separate two metals if one lies above and the other below hydrogen in the electromotive series. In this case, hydrogen is evolved at the cathode after the deposition of …

A Study Of The Reaction Of Portland Cement With Certain Acids, Robert Alfred Laudise

Honors Theses

Portland cement was treated with various concentrations of hydrochloric, acetic, and sulfuric acids. The reaction products, mixed gels of SiO2, Al203, and Fe2O3, were examined for commercial possibilities. Liquid absorption of organic dyes was used as a criterion of surface activity. When 10gm cement was reacted with 100m.l. of acid solution, it was found that the reaction went to completion at 3 molar HCl, 3 normal H2SO4, and about 7-9 molar HAc. The best absorbers for methylene blue were formed by the reaction of 2.5-3 molar HCl and 6-9 molar HAc. The absorption of some of these gels were carefully …

The Inhibition Of The Thermal Polymerization Of Styrene, William Russell Stoll

Honors Theses

In continuing the work of Cohen and Opitz the percent polymer formed by the inhibition of the thermal polymerization of styrene with chloranil at one hundred degrees is determined to be 0.0025%. The first polymer is precipitated by absolute methanol approximately twenty minutes before the end of the induction period. For polymer determination an analytical method is developed, which is applicable for concentrations between 0.001% and 0.022% by weight measures the solution turbidity after precipitation from the monomer. This method can be extended to 0.08% polymer. Polymer percentages to be measured in this manner greater than 0.02% were diluted with …

A Study Of The Setting Of Alkaline Silicic Acid Gels, Allen Mutimer Palmer

Honors Theses

This study of alkaline silicic acid gels was a continuation of the previous work done at Union College on alkaline silicic acid gels. The purpose of this study was to collect data on the time of set of various alkaline gels at different pH values and at different temperatures, and to find if any alkaline gels were thermally reversible.

A Study Of The Mechanism Of The Reaction Between Styrene And Tung Oil, Edwin Charles Shuttleworth Jr.

Honors Theses

An attempt to explain the mechanism of the reaction between styrene and tung oil by separation and analysis of its products is the purpose of this thesis.

Determination Of The Dipole Moment Of Indole, Robert George Dreyfuss

Honors Theses

The purpose of this research was to determine the dipole moment of indole, by a method that involves using the Yellow Springs Instrument Company’s Dielectric Constant Meter. The application of this new instrument made it necessary to determine its applicability and accuracy in this particular experiment. The experimental part of this research is comprised of the determination of the dipole moments of four compounds. The compounds and solvents used are as follows: 1. Meta-dinitrobenzene in benzene 2. Paranitrotoluene in dioxene 3. Benzotriazole in dioxene 4. D indole in dioxene B indole in benzene The first two compounds were used as …