Chemistry Commons^™

The Synthesis Of 2-Methyl-3, 4-Benzpyrene And 2, 8-Dimethyl-3, 4-Benzpyrene., James W. Patton

Chemistry and Chemical Biology ETDs

In 1933 Cook, Hewett and Hieger (1) isolated a carcinogenic hydrocarbon from coal tar thought to be 3,4-benzpyrene (I).

Evaluations Of Two Proposed Mechanisms Of Cation Adsorption By Silicate Minerals, Norman D. Larsen

Theses and Dissertations

Previous work done at the Brigham Young University by Andelin^1, Roberts^2, and Olsen^3, has established the mechanism by which xanthate collectors are adsorbed on molybdenite ores to produce the hydrophobic surfaces necessary for flotation. This thesis is an attempt to better understand the mechanism by which the silicate minerals, which are found in conjunction with the ores, become hydrophyllic and as a result are not floated when in contact with air bubbles. It has been previously established that silicate minerals do adsorb cations on their surfaces^4. The present study has been undertaken to more fully understand the mechanism by which …

A Polarographic Study Of Respiration In A Blue-Green Alga, Samuel Leonard Cooke Jr.

Master's Theses

The study of many aspects of physiology is accomplished by the study of respiration under varied conditions. For this purpose, a simple, rapid, and relatively accurate respirometer would be useful. This project was undertaken to investigate the possibility of adapting previously described polarographic techniques to the measurement of respiration.

The Exchange Of Antimony Between Antimony Trichloride And Antimony Pentachloride In Carbon Tetrachloride Solution, Franklin Brett Barker

Chemistry and Chemical Biology ETDs

In the investigation of any chemical reaction, the main points of interest are the conditions of equilibrium, the rate at which equilibrium is approached, and the mechanisms by which the reaction occurs. The first of these is determined by the standard free energy change, a thermodynamic quantity which depends only upon the initial and final states of the system. However, two reactions having the same value of the standard free energy change may approach equilibrium at radically different rates, one being practically instantaneous and the other almost infinitely slow. The field of chemical kinetics is concerned with the study of …

A Semi-Micro Spectrophotometric Method Of Copper Analysis, Edgar Miller Layton

Honors Theses

The Manhattan Project of the United States atomic energy program was designed essentially to produce methods and instruments of atomic warfare. Out of the many investigations made by the scientists and engineers working to attain this primary goal, much information of value was necessarily placed in the background and, as a consequence, a vast amount of material was only cursorily studied by these workers. The type of relationship between the per cent transmission and concentration decrease was to be investigated in the hope of establishing an empirical formula for use in a certain concentration range. As an added check on …

Electrodeposition And Cathode Potential, Kenneth Frederick Greenough

Honors Theses

When two electrodes are placed in a solution of an electrolyte and a voltage is applied, a continuous current will flow only when the voltage is equal to or greater than the decomposition potential of the electrolyte. At voltages above the decomposition potential, the current is proportional to the applied voltage, i.e. Ohm’s law where I = E/R. At voltages below, there is a temporary flow of current, existing until the products of electrolysis accumulate and produce an opposing voltage, causing the residual current to diminish. A plot of current versus applied voltage is at first almost horizontal, and the …

Properties Of Cement Acid Gels, Charles Ansel Suter

Honors Theses

This thesis summarizes the research conducted during the period June 1953 - June 1954 under the research fellowship established in the Department of Chemistry at Union College by the North American Cement Corporation. The research was performed under the direction of Professor Charles B. Hurd, to whom the author is indebted for many helpful suggestions and ideas.

Reactions In The Synthesis Of Indazole, Richard Velmer Webb

Honors Theses

This investigation was undertaken to study the reaction mechanism involved in the formation of Indazole. A study was also made to determine the effect of a polar solvent on the yield of Indazole using Dreyfuss' method of preparation.

Coloration Of Alkali Halide Crystals, Gerald Kirwin Ryan

Honors Theses

In the experiments crystals were heated in the presence of the alkali metal or its vapors. The metal's electron goes to the site of the corresponding missing anion forming a F-center.

The Catalytic Vapor Phase Butylation Of Phenol, Nathan Lewis Zutty

Honors Theses

The purpose of this experiment is to study the reaction between secondary butyl alcohol and phenol in the vapor phase. The effect of temperature upon the formation of different butyl phenols and butyl phenyl ethers was observed.

Properties Of Cement Acid Gels, Charles Ansel Suter

Honors Theses

This thesis summarizes the research conducted during the period June 1953-June 1954 under the research fellowship established in the Department of Chemistry at Union College by the North American Cement Corporation.

A Study Of Sodium Methyl Siliconate In Gel Formation, Alvah Cullings Koert

Honors Theses

The object of this work was to study the critical pH range in which the gels of sodium methyl siliconate are believed to form and to plot potentiometric titration curves for the compound at various dilutions. This study is a continuation of the work begun here at Union College last year on General Electric’s SC-50.

The Content Of Essential Amino Acids In 1950 Alfalfa Hay Grown In Utah Soil Treated With Different Fertilizers, Adriana Lanting Kunkel

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Application of fertilizers to soils to increase production yields has raised questions concerning the effect of fertilizer on chemical composition of plants. With the development of accurate, sensitive microbiological methods for the determination of amino acid in protein, speculations concerning amino acid content have been supplanted by acquisition of facts.

The effect of the different fertilizer applications on alfalfa yield has been discussed by Jones, et al (5). Also, some work has been done to determine the effect different fertilizers might have on the amino acid content of plant material. Some values (1,3,12) have been reported for the amino acid …

Exchange Reactions Of The Transuranium Elements Section 1. Am(Iii)-Am(V)-Am(Vi), Am(Iii)-Am(V), And Am(V)-Am(Vi), Thomas K. Keenan

Chemistry and Chemical Biology ETDs

No exchange work prior to this dissertation has been reported on the Americium system. Neptunium exchange is presently being studied by J. C. Hindman and co-workers at the Argonne National Laboratory, but has not been completely reported. Study of uranium exchange, which is still in an unsatisfactory state, has been limited to the U(IV)-(VI) exchange.

The Synthesis Of 10-Methyl-3, 4-Benzpyrene And 8,10-Dimethyl-3, 4-Benzpyrene, Jules Adelfang

Chemistry and Chemical Biology ETDs

In 1953 Cook, Hewett, and Rieger found a highly carcinogenic hydrocarbon in coal tar. By a variety of solvent extraction methods, fractional distillation, and crystallization several pure hydrocarbons were isolated from the crude pitch. Two new pentacyclic aromatic hydrocarbons were isolated and since only small quantities of them were available it was decided to ascertain their structures by synthesis instead of degradetive experiments. The hydrocarbon samples were obtained with great difficulty from two tons of crude pitch. The problem was simplified since ten of the possible fifteen pentacyclic hydrocarbons were known. From certain similarities of these hydrocarbons to perylene its …

Electrokinetic And Light Scattering Study Of Alumina Sols., James Porter Craig

LSU Historical Dissertations and Theses

No abstract provided.

Voltammetry At Constant Current And Its Application To Electrochemical Kinetics., Calvin C. Mattax

LSU Historical Dissertations and Theses

No abstract provided.

A Study Of Line-Width Photographic Photometry For Use In Spectrochemical Analysis., John A. Perry

LSU Historical Dissertations and Theses

No abstract provided.

The Electrolytic Reduction Of Osmium Tetroxide In Perchloric Acid Solution, Donald Lloyd Brunner

University of the Pacific Theses and Dissertations

This is a study involving some of the chemistry of osmium tetroxide in perchloric acid solution. The research was originally instigated from a seminar report on the ruthenium III thiocyanate complex ion which was studied in perchloric acid solution. The seminar report given by Craig Townsend discussed how a spectrophotometric study by Yaffe and Voight (1951) was made of the ruthenium III thiocyanate complex ion, Similar possibilities were recognized as being possible in attacking the problem of an osmium thiocyanate complex or complexed. Some of the chemistry involved in the study of the ruthenium III thiocyanate complex will be discussed …

Studies Of The Reactions In Alcoholic Solution Of Gold(Iii) And Alpha-Naphthylamine., Theo Conner Mccoy

LSU Historical Dissertations and Theses

No abstract provided.

Analytical Studies Of Some Acyloin-Oximes., Hans A. Suter

LSU Historical Dissertations and Theses

No abstract provided.

A Study Of Some Nitroso Compounds., Cilton Watson Tate

LSU Historical Dissertations and Theses

No abstract provided.

The Chemistry Of Digestion, Lester B. Burrus

Masters Theses

No abstract provided.