Physical Sciences and Mathematics Commons^™

The Cleavage Of Cyclo-Beta-Diketones. I. Tetramethyl-1,3-Cyclobutanedione. Ii. Tetraphenyl-1,3-Cyclobutanedione., Garry Carlton Kitchens

LSU Historical Dissertations and Theses

No abstract provided.

A Study Of Factors Influencing The Hydrolysis Of Corn Amylopectin By Barley Malt Enzymes., Thelma Munsey Back 1918-2006

Electronic Theses and Dissertations

No abstract provided.

Occupational Chemical Hazards In Industries Of Louisville And Jefferson County., Morgan Brown Lewman

Electronic Theses and Dissertations

The facts and conclusions presented in the following pages are the results of figures gathered during two and one half years of work as an Industrial Hygiene Engineer for the Louisville and Jefferson County Health Department. The factual information was acquired from many sources including extensive reading to which reference is made of the more recent publications in the bibliography and also from correspondence and discussions with authorities in various fields. Much data was gained from "in-service training" received at the United States Public Health Service; Bureau of Industrial Hygiene, Bethesda, Maryland; University of Michigan; National Conference of Governmental Industrial …

Synthesis Of Dyes, Faith B. Cramer

Chemistry Honors Papers

This 14 page thesis examines the classification and preparation of dyes.

The Relation Between Viscosity And Silica Concentration Of Silicic Acid Gels, Jules David Viglielmo

Honors Theses

In this work we have again been concerned with the silica concentration but have elected to use viscosity measurements as a means of studying the process of gelation rather than the former method used by Hurd and Schaffer. As pointed out by Hurd and Santora, who use the viscometer in studying the effect of added electrolytes the process of gelation may in this way be observed.

Preparation Of Certain Purine Thiocyanate Complexes, Robert Wallace Carter

Honors Theses

As the purine group of compounds is known to exert a stimulative effect on the heart, the object of this research was to prepare certain compounds of the purine group for possible use in cardiotherapy. However, a serious rise in blood pressure often accompanies the use of these compounds, it would be desirable to combine them with some compound which would dilate the blood vessels.

A Study Of Mixed Hydrogels Of Titania And Zirconia, James Borst Bouck

Honors Theses

Hydrogels of titania, formed by addition of bases to acid solutions of titanium salts, have been known since Rose's work in 1823. Hydrogels of zirconia have been prepared and investigated by several workers. These hydrogels of titania and zirconia are both acid gels, that is, they are formed at pH's considerably less than 7.

Measurement Of Dielectric Constants, Francis Andrew Czech

Honors Theses

The increasing importance of a knowledge of dielectric constants of substances is shown by the large number of measurements that have appeared in recent literature- Several methods have been used in making these measurements, but probably the most precise ate the methods based on the heterodyne beat principle. This apparatus is designed to measure substances that are non-conducting. The condition of constant capacitance in the measuring circuit is the principle of the apparatus and is detected by the beat note between a fixed crystal radio frequency oscillator and oscillations generated by a variable oscillator. Otto and Wenzke (6) have used …

Synthesis Of Complexes Of Potassium Thiocyanate With Thiourea And Biurnet, Barclay Belding Fishburn

Honors Theses

The main objective of the work was an attempt to prepare certain compounds of the purine group for possible use in cardio-therapy, since the purine group is known to exert a stimulating action on the heart. However, under certain conditions these compounds cause a serious rise in blood pressure. It was thought that perhaps some compound which would produce dilation of the blood vessels could be combined with the purine group, to give a compound which would have the stimulative property, and in which the rise in blood pressure would be absent or at least minimized. Since such a type …

A Preliminary Polarographic Investigation Of Hydrogen Bonding - The Ortho- And Para- Hydroxy Benzaldehydes, Edwin Gerald Newstead

Honors Theses

The polagraphic method should be able to determine the presence of hydrogen bonds in ortho-hydroxy benzaldehyde in carefully buffered water solutions. The wave-height for the reduction of ortho-hydroxy benzaldehyde in acid solution is about one-half the height in basic solution. This would seem to indicate that the intermediate reduction product is formed by the reduction of ortho-hydroxy benzaldehyde in acid medium. This intermediate is stabilized by the presence of a hydrogen bond, so that further reduction to the hydroxy benzyl alcohol is not possible at the dropping mercury electrode.

An Investigation Of The Reaction Of Bromopicrin With Liquid Ammonia, Seymour L. Meisel

Honors Theses

The purpose of this research was to study the reaction between bromopicrin, also referred to as nitro-bromoform or tribromomonitromethane, with liquid ammonia. It seems surprising, but very little has been done on the reaction between these halogen nitro derivatives of methane and liquid ammonia.

Spectrophotometric Determinations Of The Sulfonamides, Paul William Brna

Master's Theses

No abstract provided.

The Determination Of Small Amounts Of Carbon Monoxide In Air, Edward J. Fitzsimons

Master's Theses

No abstract provided.

A Spectrophotometric Study Of The Solution Of Iodine In Aqueous Potassium Iodide, Joseph L. Schneider

Master's Theses

No abstract provided.

The Decomposition Of Isopropyl Chlorocarbonate., Edgar Lattimore Compere

LSU Historical Dissertations and Theses

No abstract provided.

An Improved Method For The Determination Of Vitamin B₁ And Vitamin B₂ By Spectrophotometric Means., Kenneth W. Smith

Electronic Theses and Dissertations

No abstract provided.

A Study Of The Fischer-Tropsch Synthesis, John E. Dornfeld

Bachelors’ Theses

In Continental Europe, where raw materials are at a premium, it is necessary to synthesize as much as possible. Hydrocarbons and their oxygenated derivatives are important for "everyday" life. When importation costs of raw materials are high, synthesis is necessary provided it can be done cheaper. The Fischer-Tropsch process is the answer for the needs of synthetic hydrocarbons and their oxygenated derivatives.

The purpose of this thesis is to obtain hydrocarbons and their oxygenated derivatives by the Fischer-Tropsch process in the wax range. From the literature it appears that no work in the industrial field is being done in the …

A Study Of Chrome Dyeing By Determination Of Chromium On Dyed Wool And In Exhausted Dye Baths, Thomas Schonfeld

Chemistry Honors Papers

This 13 page thesis attempts to analyze the reaction between the wool and the chromate in the dye bath.

The Reactions Of L-Chloro-L-Nitro Propane In Anhydrous Liquid Ammonia, James S. Gilmore

Honors Theses

In 1939 Seigle and Hass were successful in preparing numerous dinitro paraffins such as 2, 3-dimethyl-2, 3-dinitro butane and 2, 3-dimethyl-2, 3-dinitro pentane by the reaction of salts of nitroparaffins with halonitroparaffins. They were unable to do so however, in the cases where primary nitro compounds were involved. More recently, in an unpublished work Sottysiak believed that he prepared the 2, 3-dimethyl-2, 3-dinitro butane by a Wurtz reaction in liquid ammonia, in which 2-nitro-2-chloro propane was reduced by sodium. Because of the strong reducing properties of a solution of sodium in anhydrous liquid ammonia, it was hoped that the 3, …

Construction And Use Of A Bingham Type Viscometer, Harold P. Bodenstab

Honors Theses

Bingham in his book "Fluidity and Plasticity" has described a type of viscometer similar to the Ostwald visocometer but which has the added feature of a variable applied pressure. By changing the pressure the time of flow may be controlled so that a rather viscous liquid will not have an inconveniently long time of flow in a viscometer which in suitable for another liquid. The construction of such an apparatus consists in teh assembly of a special viscometer with an arrangement for applying air pressure, measurement of such air pressure, and the placement of the viscometer in a thermostat. Such …

A Study Of The Camphor Method For Molecular Weight Determinations, Harvey Douglas Boynton

Honors Theses

The determination of molecular weights accurately and quickly is of prime imporatance in analytical and organic chemistry. This problem has been attacked from many angles, the greatest success being found in cryoscopy. Man of the customary organic solvents have been used for cryoscopic determinations; they all have their advantages and limitations. These solvents in general give a very low freezing point depression. Camphor is dinstinguished from these in that it gives an unusally large freezing point depression, 40 degrees for a molal solution, and it is suited by a considerale dissolving power up to moderate concentrations.

A Study Of Some Cyclohexyl Tin Compounds, Donald J. Giroux

Honors Theses

Although a large number of organotin compounds have been prepared (Dr. Garzuly lists over one hundred and fifty), comparatively little is known about them. It was the purpose of this investigation to study some of the cyclohexyl tin compounds with a view toward finding out more about their preparation and properties, and to prepare some that had not been prepared before. Unfortunately time and circumstances prevented the latter.

A Study Of The Possible Formation Of A Mixed Hydrogel Of Zirconia And Silica, Irving Goodman

Honors Theses

Of course in this paper we are also interested in the gel of hydrated silica, which has been studied here thoroughly for several years. A discussion of the theory and work on this subject would take up too much time and space, since this field has been much more widely studied than any other in the field of gels. Reference to Hurd’s “Theories for the Mechanism of the Setting of Silicic Acid Gels” presents a complete summary of the theory behind the setting of this gel.

A Study Of The Co-Gelation Of Silica And Titania, Theodore Male

Honors Theses

Silica gels have been the object of extensive research. Titania gels have been the object of limited research, but they have been reported as made successfully. The most commonly used silicate solutions are basic and the titanium solutions are acidic. Acids are used to control the gelation of silicon, and bases are used to control the gelation of titania. The imagination is taxed only slightly in assuming as plausible the use of the acid titanate solution to control the gelation of silica and the basic silicate solution to control the gelation of titania, and thereby produce a mixed gel. If …

Scattering And Polarization Of Light By Silicic Acid Gel-Forming Mixtures, Donald Male

Honors Theses

Much work has been done on the factors affecting the time of setting of silicic acid gels. The effects of hydrogen ion concentration, heat, and the presence of ammonium chloride and other soluble impurities are quite well known. Work has also been done on the gels, during and after setting, on such properties as electrolytic conductivity, surface tension, syneresis elasticity, viscosity and the ability to scatter light. It is with this last property that this research is chiefly concerned. The oldest known law concerning optical properties of a collodial solution is Lamberts' law of absorption.

A Comparison Of The Time Of Set Of Similarly Constituted Gels At Various Temperatures, John E. Macdonald

Honors Theses

This investigation was undertaken with the purpose of obtaining more data on the question of the existence of thermally reversible silicic acid gels, i.e., silicic acid gels which would reliquify on heating. Some work was done in the highly basic region at 21 degrees and 40 degrees. An attempt was made to use the Leads and Northrup glass electrode apparatus present in the Union College Chemical Laboratory which, however, failed, although Spittle using this apparatus, apparently met with some success. In order to obtain data on the change of time of set with temperature of gels having the same composition …

A Preliminary Investigation Of Certain Purine Thiocyanate Complexes, Gerhard W. Leubner

Honors Theses

The purpose of the work has been to attempt to prepare some compounds of the purine group with regard to their possible use in cardiotherapy. Some of the purine derivatives such as caffeine, theobromide, and theophylline under certain conditions exert a stimulating effect on the heart, but under these conditions exert a stimulating effect on the heart, but under these conditions they usually also produce an undesirable rise in the blood pressure.

Heats Of Solution Of Silver Halides In Liquid Ammonia, Donald K. Stevens

Honors Theses

It was the hope of the experimenters to make use of one of the advantages of liquid ammonia, that of the solubility of metallic sodium to give a free electron, to find the heat of reduction of the silver ion to the metallic state.

Gas - Volumetric Semimicrodetermination Of Carbon: A Wet Method For Aliphatic And Cyclic Compounds, Roger P. Staiger

Chemistry Honors Papers

This 18 page thesis explains the technique and apparatus of gas-volumetric semimicrodetermination of carbon and shows the accuracy of this method.

Direct Spectrophotometric Determination Of Lead Naphthenate In Linseed Oil, Nicholas Peter Oehlberg

Master's Theses

No abstract provided.