Physical Sciences and Mathematics Commons^™

Selected Studies Of Organic Reagents., Louis Johnson Conrad

LSU Historical Dissertations and Theses

No abstract provided.

Intermolecular Potential Functions For Liquid Argon And Liquid Mercury, Richard H. Kerr

Masters Theses

"The purpose of this research is to obtain such intermolecular potential functions for liquid argon and liquid mercury by use of the experimental radial density functions available for these two liquids over a wide range of temperatures. We shall introduce the notion of a correlation between the motions of atoms in neighboring cells in a cell theory of liquid structure, and derive a theoretical radial density function involving the intermolecular potential function for a pair of atoms in the liquid. This radial density function, or as it is frequently termed, the atomic distribution function, applied to the experimental data should …

A Determination Of The Surface Tension Of Bismuth, Cadmium, Tin, And Lead, Edward Mckee Chandler

Masters Theses

"Various methods have been employed for the determination of surface tension including capillary rise, drop weight, maximum bubble pressure, sessile drops on flat surfaces, sessile bubbles formed underneath flat surfaces, and the shape of pendent drops. Each method is subject to characteristic advantages and disadvantages. Only two of these will be discussed. The method of maximum bubble pressure allows the formation of a fresh surface for every bubble but does not permit the study of a given sample over a period of time. The sessile drop in direct contrast, allows the observation of the same sample over any period of …

The Reflection Coefficient At The Truncated Corner Of A Rectangular Wave Guide, John Raymond Barcroft

Masters Theses

"The term wave guide refers to a hollow conducting tube (usually of rectangular or circular cross section) filled with a dielectric (or vacuum) and used for the transmission of electromagnetic waves. We shall consider the guide to be bounded by a perfect conductor and to be filled with a lossless homogeneous isotropic dielectric (or vacuum). The electromagnetic wave in the guide must of course satisfy Maxwell's equation. It must also satisfy the boundary condition that there be no tangential component of electric field at the surface of the conductor. If the electromagnetic waves traveling along the guide meet a discontinuity …

Pebbles In The Glacial Till Of Eastern North Dakota, Alice E. Russell

Theses and Dissertations

The paper is a study of twenty-three samples of glacial in eastern North Dakota. The samples were analyzed in terms of lithology, shape, and roundness. Graphs are given showing the relationships among the various factors. The graph are discussed and significance of the various factors affecting the pebbles are evalnated.

Purification Department Of Zinc Leaching Division At Anaconda, Montana, J. L. Brown

Bachelors Theses and Reports, 1928 - 1970

The original smelter, known as the Upper Works smelter, was located on the north side of the Warm Springs Creek, just 2 miles east of the city of Anaconda and 26 miles from the city of Butte. By the year 1894 this smelter had a capacity of 500 tons of ore a day.

The Vanadium Plant Of The Anaconda Reduction Works, Tom Liss

Bachelors Theses and Reports, 1928 - 1970

No complete history of mining and smelting will ever be written that does not include a major discussion of the Butte district. The colorful tale of this area plays a major role in the interesting stories of mining. In the fields of mining methods, labor relations end financial manipulations, the Butte area has set a standard.

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.

Peactivity Of Alpha, Beta-Unsaturated Ethers With Grignard Reagents, Robert A. Walker

Tennessee State University Alumni Theses and Dissertations

No abstract provided.

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.

An Investigation Of The Radioactivity Of Oilwell Drilling Fluid, With Depth, Of Wells In The Berland Field Of Rooks County, Milford W. Johnston

Master's Theses or Doctor of Nursing Practice

In reviewing the foregoing literature and in consideration of the very important place of the state of Kansas in the nation's production of petroleum, it was thought that possibly a contribution might be made to the general subject of geophysical prospecting for oil by the adoption and execution of the problem proposed by the title of this thesis. Since a similar but more scattered study of this problem had been previously made by Lippert with the use of an electroscope, it was considered worth-while to repeat the electroscopic observations together with Geiger-Mueller Counter observations on a new series of wells …

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

Master's Theses or Doctor of Nursing Practice

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 or Doctor of Nursing Practice

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 or Doctor of Nursing Practice

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 …

Solid Reactions: The Influence Of Temperature And Concentration, Norman H. Kowert

Bachelors’ Theses

Reactions are constantly taking place all around us. They are the basis of chemistry. Without reactions, there could be no change, and, therefore, no chemistry. Most reactions can be easily visualized; as, for instance, when two liquids are mixed together, or two gases, or a gas and a liquid. When reactions between these substances take place, we take it as a matter of course. There is another type of reaction, however, which does take place, but which is not easily visualized. This is the reaction between two solid substances. Due in part to the nature of solids, their crystalline form, …

Preparation Of The Phenyl Urethans Of Saturated Aliphatic Liquid Alcohols And A Comparison Of Their Properties With Those Reported In The Literature, Mary Ann Mesoloras

Bachelors’ Theses

An investigation of the phenyl urethans of saturated, aliphatic, liquid alcohols disclosed that there was a great discrepancy in the literature with regard to the melting points of these compounds. It was also found that the preparations of the phenyl urethans were either vague or specific for a few selected alcohols.

The purpose of this thesis was to prepare these derivatives in the laboratory in order to compare the melting points found to those in the literature.

Liquid Potassium Soaps From Coconut And Corn Oils, Jack R. Kaestner

Bachelors’ Theses

My interest in liquid potassium soaps began a number of years ago. At this time I was employed at a company that manufactured various cleaning preparations, one of these being a liquid soap prepared by the interaction of potassium hydroxide and cocoanut oil. It was there that I first became acquainted with techniques and problems encountered in the soap industry.

The above mentioned notes took place during the middle of World War II, and consequently the author became familiar with some of the different fats and oils that were substituted for the then unavailable Philippine coconut oil. All of the …

The Christensen Sillimanite Deposit Southeast Of Dillon, Montana, Everett O. Bracken

Bachelors Theses and Reports, 1928 - 1970

The minerals sillimanite, kyanite, andalusite, dumortierite, and topaz comprise a group of minerals whose high alumina content and physical properties are particularly desirable in the manufacture of refractory products. Sillimanite is the least plentiful of the minerals of this group, and for this reason it is not used extensively at the present time. However, it would be very desirable to the refractory industry if a suitable domestic source of supply could be established.

A Study Of The Differential Seperation Of Galena And Sphalerite, Wilfred E. Nagel

Bachelors Theses and Reports, 1928 - 1970

The smelting of complex lead ores is a difficult operation, especially when they contain considerable amounts of iron and zinc. When these ores are smelted, all of the zinc, which is valuable and well worth recovering, goes into the slag. With the advent of the flotation processes, and the ability of these processes to concentrate the lead and zinc minerals into separate products, the smelting of complex lead ores was to a great extent simplified.

The Possibility Of Using Gelatin As A Substrate In Determining The Effect Of Ph On The Activity Of Hyaluronidase, Robert P. O'Driscoll

Bachelors’ Theses

The aim of this research is as follows:

1. To determine the feasibility of using gelatin as a substrate for hyaluronidase.
2. To determine the optimum pH for the enzyme acting upon a gelatin substrate.
3. To determine qualitatively and quantitatively if reducing sugars are present in the substrate after action by the enzyme.

The work on hyaluronidase is relatively new. However it is the most extensively studies mucolytic enzyme.

The Preparation Of Alkyl Chlorobenzoates And Their Application As Alcohol Derivatives, Robert Gudwin Johnson

Bachelors’ Theses

While engaged in the preparation of alcohol derivatives during a course in the characterization of organic compounds, the writer noticed in a chemical catalog that various chlorobenzoyl chlorides are now available commercially. Since many of the present reagents for the preparation of alcohol derivatives are deficient in at least one respect, it seemed to be a worthwhile project to prepare alkyl chlorobenzoates by the ·action of these substituted benzoyl chlorides on alcohols. A study of the physical properties of these chlorobenzoates would then be undertaken to determine the feasibility of using them as alcohol derivatives.

A search of the literature …

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 …

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.

A Study Of Atmospheric Ozone Near The Surface Of The Earth, Irby Gerald Bowen

Physics & Astronomy ETDs

It is the primary purpose of this thesis to describe the method used for measuring ozone at the earth’s surface. There is also a report on a brief series of surface ozone measurements. An attempt is made at a preliminary explanation on the basis of meteorological conditions of the diurnal variations which were found.

The Darboux Inverse Problem In The Calculus Of Variations, Frank O. Lane

Mathematics & Statistics ETDs

The simplest non-parametric problem of the calculus of variation, the so-called direct problem of the plane, is the problem of finding that arc C_o of a family of admissible arcs y=y (x) joining two fixed pointed (x₁ , y₁ ), (x_1, y₂) in the x,y-plane such that along the C_o the integral takes on a minimum value.

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

Chemistry and Chemical Biology ETDs

Luminescent materials have come into wide and important use within the past ten years in such equipments as the fluorescent lamp, and the cathode ray television tube. Because of this wide interest and usage, there has been made a concentrated search for ever brighter luminescent materials. It has also been of importance to produce and investigate materials which would produce as a wide range of colors under excitation as possible.

A New Method Of Measuring The Intensity Of The Zodiacal Light, Raymond Grenchik

Physics & Astronomy ETDs

The two theories that have been presented for the zodiacal light show that it is due to light scattered (and perhaps emitted) from an extensive lenticular cloud of particles lying in the plane of the ecliptic. The basic difference of the two theories is the position of the center of this cloud. One, the planetary theory, places the sun at the center of this cloud. The other, the atmospheric theory, places the earth at the center of the cloud.

A Mineral Dressing And Economic Study Of A Complex Arsenical Ore, Luigi D. Piana

Bachelors Theses and Reports, 1928 - 1970

The factors that influence the choice of a method for treat­ment of an ore comprise the technical and economic limitations and advantages, derived in detail and balanced according to the exigencies of the particular situation.

Separation Of Cadmium From Zinc In The Purification Step Of The Leaching Cycle, L. C. Powell

Bachelors Theses and Reports, 1928 - 1970

The purpose of this investigation is to determine the effect of the factors listed previously by conducting a series of tests that will indicate the ex­tent to which the purification is influenced by time, temperature, zinc oust size, zinc dust quantity, iron concentration, two stage precipitation, and aeration.