Chemistry Commons^™

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.

An Electrochemical Determination Of The Thermodynamic Properties Of Silver And Mercury Sulfides, Arthur G. Cole

Theses and Dissertations

The problem consists of measuring accurately the free energy of formation, heat of formation, entropy, and solubility product constant of silver and mercury sulfides, and is a part of a larger study extending to many other metal sulfides. The confusion now existing in the chemical literature amply justifies a study of this nature. The thermodynamic properties of several important metal sulfides have never been measured, and the only values available for them are estimates. Determinations of the properties of many other metal sulfides have been carried out, but the results given by different authors often differ widely.

Factors Influencing The Solubility And Oxidation Of Commercial Iron Pyrites, Neldon Lamont Jensen

Theses and Dissertations

Studies were made (1) to determine the effect of air and oxygen and verying concentrations in distilled water, on the solubility of iron pyrites; (2) to determine the effect of acid, base and buffer solutions of varying pH; (3) to observe the effect of some oxidizing and reducing agents on the solubility of iron pyrites. These investigations would aid in deciding the possibilities of using iron pyrites as a soil conditioner.

A Determination Of The Decomposition Potential Of Sulfamic Acid And Certain Of Its Metallic Salts, Francis J. Shell

Master's Theses

The present investigation of decomposition potentials, or the potential where continuous electrolysis begins, was suggested by a paper by Choguill (5) on the electrodeposition of some metals from solutions of their sulfamates. Sulfamic acid or amidosulfonic acid H2N•SO2•OH is a strong inorganic acid obtained from chlorosulfonic acid and ammonia, or by heating urea with fuming sulfuric acid. The latter process is now used on a commercial scale. The acid forms white or colorless non-hygroscopic crystals that are stable when dry but in solution at elevated temperatures it slowly hydrolyzes forming ammonium bisulfate.

A Study Of Aldehyde Derivatives Of Metallic Sulfamates., Edmond A. Morin

Master's Theses

Sulfamic acid at one time had no particular value, and very little was known about the physical and chemical properties of this acid. At the present time , however, this acid is a commercial product of considerable importance and extensive investigation has been conducted to discover its many chemical properties. A very interesting group of compounds derived from sulfamates are the aldehyde addition products. The aldehyde derivatives of calcium sulfamate were studied and had a particular interest because of their greater stability, especially in the isolated, solid form. The aldehyde addition products of calcium studied included benzaldehyde, furfuraldehyde, for aldehyde, …

The Reactions Of Ethyl Acetoacetate With Certain Halogen Derivatives Of Alcohols, Harold E. Sullivan

Master's Theses

Chemical literature records many series of compounds produced by the acetoacetic ester synthesis, but in no instance is combination of the acetoacetic ester with the halogenated alcohols, of which the chlorohydrins are examples, mentioned. The products of these reactions are substituted derivatives of the· acetoacetic ester. These products yield, upon hydrolysis, hydroxy-ketones. These acids and ketones may serve as intermediates for synthesizing other compounds. Many compounds which have medicinal value, such as pyrazolones and other ring compounds, may be synthesized from the acetoacetic ester derivatives. 'This study of the reactions of the acetoacetic ester with certain halogen derivatives of alcohols …

Methylchlorosilanes, Donald Edward Campbell

Honors Theses

The primary objective of this investigation was to prepare and improve the separation of the mono and di-methyl substituted chlorosilanes by fractional distillation.

The Preparation And Attempted Polymerization Of Beta-Chlorostyrenes, Curtis Usher Coleman

Honors Theses

The polymerization of unsubstituted styrenes had been studied by a number of worker, among them Wheland (11), Stoermer and Kootz (9), and Ziegler and Bahr (13), but none of these workers have studied the effect of halogen substitution on the side chain. This has been studied by Worrall (12), and he concluded that such substitution blocked polymerization. It was the purpose of the present work to prepare α-chlorostyrene, and to carry the work of Worrall a step further by seeking some reagent which would bring about the polymerization of α-chlorostyrene. A further purpose was to prepare a new α-chlorostyrene, determine …

Some Colloidal Aspects Of Portland Cement, Eugene D. Day

Honors Theses

Excellent general discussions of the earlier literature concerning the rival crystallization and colloid theories as applied to the setting and hardening of Portland cement are found in Bogue (4, 5), Kuhl (21), and Lea and Desch (24). These authors, along with Steinour (41), have tried to resolve these apparently conflicting hypotheses in the light of more recent investigations and have clearly outlined those areas of conflict which need further clarification through continued research. Recent work by Hedin (16) has shown that when ion concentrations and ion activities in solution are changed by the addition, for example, of gypsum, a sufficiently …

The Measurement Of Dipole Moments, Anthony Martin Di Cocco

Honors Theses

It is the purpose of this thesis to present an outline or the determination of dipole moments according to the Heterodyne-Beat method, as a laboratory exercise in Physical Chemistry.

Kinetics Of Displacement Reactions Which Result In A Retention Of Configuration, Victor Frank Mattson

Honors Theses

Depending upon the halogenating agent and the reaction conditions d-ethyl medelate may form either d - or 1-ethyl phenylchloroacetate. Situations of this type are common and have proven to be an interesting and a productive field for investigation into the mechanisms of organic substitution reactions. The inversion reaction (Walden Inversion) appears to be the more typical of the two and is also the more readily explained. A and B ions have a repulsive effect upon each other and classical theory would demand that the ion B enter the molecule on the side opposite A. This displacement would of necessity result …

Synthesis Of Methyl Chlorsilanes, Arthur E. Lessor Jr.

Honors Theses

The reaction of methyl magnesium chloride and methyl magnesium iodine with silicohloroform gave a mixture of methyl dichlorsilane, dimethyl chlorsilane, trimehtyl silane, and an unfientified high boiling liquid which gave no chlorine on analysis.

Viscosity-Temperature Relations Of Naphthalene In Benzene, Leighton Hartwell Peebles Jr.

Honors Theses

A study was made of multi-benzene ring compounds dissolved in benzene in order to discover any relationship between viscosity, density, and temperature. However, as there was insufficient time, only solutions of naphthalene dissolved in benzene were studied.

Taurine, George William Schnabel

Honors Theses

This thesis is a primary investigation into a new synthesis of taurine. The sulfite of ethylene glycol is reacted with ammonium hydroxide to produce taurine.

The Determination Of Particle Terminal And Transport Velocities, Bertram C. Raynes

Honors Theses

The movement of finely divided material in chemical process equipment is becoming the object of much present-day study. In industrial practice, the ability to predict the behavior of small bodies moving through a fluid medium or being moved by a fluid medium must be based upon data relating to physical properties of both the particle and the fluid; these physical properties should be those which can be readily determined.

A particle falling through a fluid medium will achieve a steady state velocity if it is allowed to fall until its acceleration becomes zero. This steady state rate of fall is …

The Effect Of Heat Aging Upon Silicone Rubber Compounds, Jonathan Rodney Learn

Honors Theses

Silicone rubber compounds are high temperature rubber-like materials consisting of silicone gum, a filler, and a curing catalyst. The filler is added to the rubber to give good molding properties and also good tensile strength and elongation. The data in this thesis shows that the compounds which had the best heat aging properties consisted of 100 parts of silicone rubber and 0.5 parts of' benzoyl peroxide as the curing catalyst, with titanium dioxide as the filler.

Study Of Ether Soluble Factor From Urine Capable Of Reducing The Viscosity Of Gelatin, Lawrence H. Docta

Bachelors’ Theses

Leonard Driss reported that urine contained an ether soluble factor capable of reducing the viscosity of a gelatin solution.

This thesis intends to further investigate-this point · and to determine the nature of the viscosity reducing factor. Also, to further investigate the phenomena reported by Driss that male urines obtained soon after emission had a greater amount of this viscosity reducing factor than normal urine.

The Catalytic Vapor Phase Alkylation Of Phenol By Alcohols, Robert Lemieux

Honors Theses

The object of this research is to study the reactions between phenol and various alcohols, using an activated alumina catalyst, at a temperature of 325 degrees Celsius. The alcohols, which are studied, are methyl, ethyl, and benzyl alcohol, respectively.

A Study Of Steric Inhibition Of The Pfitzinger Reaction, Robert Earl Stobaugh

Masters Theses

(From Introduction)

A survey of the Pfitzinger reaction reveals that little attention has been given to the steric factors likely to govern the course of the condensation; a major part of the research done has dealt with its value as a synthetic tool.

The primary purpose of this work was to add further information concerning steric inhibition in the Pfitzinger reaction; it was also hoped that the cinchoninic acids obtained might show physiological activity.

The Effect Of Certain Reagents On The Consolute Temperature Of The Phenol And Water System, Donna Louise Bleck

Bachelors’ Theses

The phenol water system was one of the first of a number of partially miscible liquid systems to be investigated. The mutual solubility has been determined for the pure system at various temperatures and pressures by many investigators.

Particularly interesting is the effect of the addition of a third substance on the mutual solubility of this system.

It is, the purpose of this work to determine the effect of certain previously untried substances on the mutual solubility of phenol and water by investigation of the critical solution temperature before and after their addition. The compounds used have been selected on …

A Study Of Magnesium Silicate As A Base Matrix Material For Fluorescent Materials, John D. Hopperton

Chemistry and Chemical Biology ETDs

The purpose of the work herein described and discussed was to study the phosphor system built upon magnesium silicate as a base matrix material.

The particular phase of this study undertaken was a comprehensive survey of the activator materials, and an exhaustive study of one or two of these activator materials.

The Chromatographic Separation Of Gilsonite, Harold Albert Bezzant

Theses and Dissertations

Separation of natural hydrocarbon minerals into their constituents non-destructively is a very difficult problem. A non-destructive analysis of the hydrocarbon minerals is essential to their wise utilization. Chromatography represents a non-destructive means of separating adsorbable substances non-destructively with a high degree of purity. The chromatographic separation is based upon the simple principle of the difference in adsorption affinity of compounds for a particular adsorbent. The chromatographic separation of gilsonite was, therefore, undertaken in an effort to prove that the adsorbable compounds of this hydrocarbon mineral could be separated by this simple non-destructive method. The first chromatographic columns of alumina, silica …

An Investigation Of The Dissociation Of Certain Cyclohexane Derivatives Of Aliphatic Acids, Jack Norman Finch

Master's Theses

For years it has been known that certain cyclic derivatives of aliphatic acids show hormone activity as growth regulators for some plants, and popular acceptance and application of the regulators has been remarkably rapid. Two commercially available growth regulating substances are indoleacetic acid and phenylacetic acid. Others also include indolebutyric acid and naphthaleneacetic acids (13). There are also certain phenoxy derivatives of acetic acid such as 2,4-dichlorophenoxy acetic acid (commonly called 2,4 D), which have specific destructive effects to growing plants. Many derivatives of phenoxyacetic acid have been prepared, their physical properties determined, and an attempt made to correlate molecular …

The Preparation Of M-Ethylphenol And M-Phenylphenol From Resorcinol, Ronald Kenith Robins

Theses and Dissertations

The lack of a convenient method for the synthesis of m-alkylphenols has long been recognized by organic chemists. Within recent years the study of the physiological properties of these compounds and their derivatives, particularly the curare analogues, has caused much more concern to be placed upon a satisfactory method of synthesis. The problem of their synthesis offered an interesting study in synthetic organic chemistry. Both groupd, the alkyl group and the hydroxyl group of a meta-alkylated phenol, direct to the ortho and para positions. This makes it impossible to prepare the m-alkylphenols by the usual procedures employed in the synthesis …

Qualitative Reactions Of Chlorine On Titaniferous Slags At Elevated Temperatures Without The Use Of Catalysts, Richard K. Brehm

Bachelors’ Theses

For the past twenty-five centuries man's mastery of nature has been based largely on his ability to produce and work iron into implements, tools, and machines. This has been due to the relatively simple task of converting abundant iron ores to metallic iron. No other common metal has the durability of iron. Aluminum has sometimes been called the second most important structural metal, but its extreme softness, even in its alloys, and low melting point have barred it from heavy duty applications. Pound for pound it is stronger than iron, but its bulk is a disadvantage.

Regardless of its durability …

The Reduction Of P-Tolyl Methyl Ether., Gustav Paul Dinga

Electronic Theses and Dissertations

No abstract provided.

Synthesis Of Imidazolines, Diazepines, Triazepines And Imidazolidones From A 1, 2-Diamine And 1, 1-Dicarboxylic Esters., Irwin J. Pachter

Chemistry and Chemical Biology ETDs

In view of the inconclusive character of much of the above mentioned work, a further investigation of the reactions between 1, 2-diamines and dicarboxylic esters of the type CH3CH2OOCXCOOCH2CH3(X=CH2, CHR, NH) seemed warranted. In our present investigation we were guided by three main considerations.

Electrolyte Equilibria In Blood, Edward J. Fitzsimons

Dissertations

No abstract provided.

The Cleavage Of Acylacetonitriles By Phenylmagnesium-Bromide., Murrell Pinckney Morris

LSU Historical Dissertations and Theses

No abstract provided.

Electrophoretic Studies Of A Synthetic Rubber-Like Lastex., Hulen Brown Williams

LSU Historical Dissertations and Theses

No abstract provided.