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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.

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 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.

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.

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 Precipitation Of Cobalt With Zinc Dust, Lyle Hallberg

Bachelors Theses and Reports, 1928 - 1970

Cobalt, as well as copper, cadmium, and other impurities, is removed by selective precipitation with zinc during the zinc electrolyte purification cycle, and the purification residue may be treated by a Cadmium Plant for the recovery of cadmium.

Construction And Operation Of A Laboaratory Size Thum Cell, Raymond Dugdale

Bachelors Theses and Reports, 1928 - 1970

Electrolytic silver refining was not perfected until the end of the nineteenth century. During the process of development, two systems of silver refining have come into prominence: the Moebius and the Thum types.

An Investigation Of Silicon Impregnation Of Low-Carbon Steels, Thomas E. Groce

Bachelors Theses and Reports, 1928 - 1970

A problem of metallurgy during the last part of the Nineteenth and the early Twentieth Century, and one that stood very near the front, was investigations of methods to produce a non-corrosive surface on iron and steel without affecting the physical properties of these base metals.

A Study Of The Transformation Of A Twenty-Eight Per Cent Tin Bronze, Perry A. Boukind

Bachelors Theses and Reports, 1928 - 1970

In this investigation, attention is directed to the phases covered by a 28 per cent tin alloy. When the investigation was started, consideration was given to the possibility of making a Time - Temperature - Transformation curve for this parti­cular alloy. As the work progressed and further research was carried on, this phase of the work was abandoned.

Chromizing Of Steels, Edward Buchanan

Bachelors Theses and Reports, 1928 - 1970

In recent years, considerable thought and study have been given to the use of chromized articles in place of chromium stainless steel articles. The present extensive application of chromizing, indeed, helps greatly to conserve this valuable metal.

Caustic Leaching Of Montana Chromite, Chester Freshour

Bachelors Theses and Reports, 1928 - 1970

Chromite is the most important ore used for the production of chromium and chromium alloys. At present, the domestic production is insignificant as compared with the amount of chromite consumed in the United States.

An Investigation Into The Precipitation Of Copper From Mine Water, Using Sulfur Dioxide To Reduce The Ferric Ion Content, David S. Gleason

Bachelors Theses and Reports, 1928 - 1970

The experiments which were preformed showed that sulfur dioxide would reduce the ferric ion content of the mine waters to a very low figure. The reduction in the ferric ion content would improve the efficiency of the precipitation process, and also increase the recovery of copper.

Application Of The Electric Furnace To The Melting Of Cathode Copper At The Tacoma Smelter, Alvin H. Nelson

Bachelors Theses and Reports, 1928 - 1970

In the field of copper metallurgy, the major chang­es effected in the original metallurgical scheme have been based largely upon the lowering in grade of copper ores, and the more particular demands of the fabricators of the metal. The former trend fostered the development of mineral beneficiation, which in turn caused the con­version from blast furnace to reverberatory furnace smelting.

The Characteristics Of The Electrolyte In The Series System Of Electrolytic Copper Refining, Carl W. Howald Jr.

Bachelors Theses and Reports, 1928 - 1970

Almost everyone is familiar with the tremendous importance of copper in our everyday life. One of the pro­perties of copper which determines its great usefulness to mankind is its electrical conductivity. This property alone has more to do with the prominence of copper among useful metals then does any other.

The Casting Of Anodes For The Series System Of Electrolytic Copper Refining, Robert R. Kupfer

Bachelors Theses and Reports, 1928 - 1970

The electrolytic refining process, while usually considered an auxiliary process used in conjunction with pyrometallurgical extraction, deserves a special niche in the complex metallurgy of copper. The development of electrolytic copper refining, for example, is largely responsible for the prominence of the electrical industry. Conversely, it could be stated that the electrical industry played an important part in the development of the copper industry.

Aluminum - Bronze Compacts And Their Possible Use As A Bearing Material, Donald J. Mcmaster

Bachelors Theses and Reports, 1928 - 1970

In the modern aspect of powder metallurgy, the first use of a sintering process was in making filaments for incandescent electric lamps.In the short while from the day of Edison to the pres­ent, the science of working with metal powders has advanced by leaps and bounds.

A Cosmic Ray Experiment Using Nuclear Photographic Emulsions, Mercedes Merner

Physics & Astronomy ETDs

A "camera" containing thirty-six nuclear plates was carried into the upper atmosphere to an altitude of twelve miles by a free balloon flight. These plates were arranged in four groups separated by successively thicker layers of steel so that nuclear events under different amounts of matter could be observed.

After recovery of the equipment these plates were developed and examined under the microscope. Four plates were selected for intensive investigation, and data was collected on the tracks found in the areas examined.

In the first part of this report nuclear plate technique will be discussed in general together with the …

A Nuclear Magnetic Resonance Absorption Experiment, Richard Runge

Physics & Astronomy ETDs

In nuclear magnetic resonance absorption work, the detection of the absorption of energy by protons situated in a steady strong magnetic field and subject to a weak radiofrequency (RF) magnetic field is attempted. The protons are present in a sample placed inside an RF coil. A radiofrequency current, present in this coil, produces a rapidly oscillating magnetic field which is capable of supplying energy to the system of protons in the steady strong magnetic field. This absorption of energy by the protons alters their relative numerical distribution among the energy levels available to them.

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

Master's Theses or Doctor of Nursing Practice

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 …