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Reactions Of Carbonyl Compounds With Amberlite Ir-45, Nathaniel Joseph Lane Jr.

University of the Pacific Theses and Dissertations

It is the purpose of this thesis to explore the experimental relationships which exist between Amberlite IR-45 and various carbonyl compounds with the hope that the knowledge obtained may ultimately form the basis of a new separation technique.

The Use Of Chelating Agents In Inorganic Analysis, Richard K. Vitek

Masters Theses

"The objectives of this investigation were; (1) to improve the existing gravimetric method of analysis for palladium with dimethylglyoxime by adding EDTA to the solution to chelate interfering metal ions: (2) to develop a new and better gravimetric method of analyses for palladium with a different organic ligand and employing a chelating agent such as EDTA or NTA to remove the interference of foreign ions"--Introduction, page 2.

Adsorption Studies Of Organic Compounds On The Hydrogen Electrode Using A Microcoulometric Technique, Philip Lamar Oglesby

Master's Theses

This work was concerned with the adsorption of various organic compounds and their effect on the hydrogen electrode where adsorption is defined as the accumulation of a chemical substance at the boundary separating two phases. In this case, the two phases were the electrode and the ionic solution surrounding it.

The Synthesis Of Some Methyl Substituted 3,4-Benzpyrenes, Jules L. Adelfang

Chemistry and Chemical Biology ETDs

3,4-Benzpyrene (I), a highly carcinogenic hydrocarbon was first isolated from coal tar in 1933 by Cook, Hewett, and Hieger. Interest in the relationship of structure to carcinogenic activity and correlation of physical properties with carcinogenic potency led to the synthesis of several monomethyl 3,4-benzpyrenes during the decade following the isolation of the parent hydrocarbon. Detailed reviews concerned with the various phases of this research have been prepared. Recently the synthesis of the 1-^2, 7-^3, 8-^(2,5), and 10-^4 methyl-3,4-benzpyrenes completed the series of reported monomethyl derivaives.

Rhenium Catalysis I. Hydrogenation And Hydroformylation Using Rhenium Carbonyl Compounds ; Ii. Hydrogenation Using Catalysts Obtained From The Reduction Of Perrhenates With Metals In Aqueous Solution, Terry G. Selin

Theses and Dissertations

The purpose of this work was to investigate the catalytic activity in both hydrogenation and hydroformylation reactions of rhenium preparations which have not been previously characterized. Rhenium pentacarbonyl was prepared in good yield from rhenium heptoxide and carbon monoxide. The optimum conditions for preparation were 25 hours per gram of dry rhenium heptoxide at 250° under 3000 psig. (initial) of carbon monoxide. Rhenium chloropentacarbonyl was prepared in 62% yield from potassium chlororhenite and carbon monoxide at high temperatures and pressures. The iodopentacarbonyl was prepared in 29% yield from potassium perrhenate, methyl iodide, and carbon monoxide. The preparation of rhenium hydrocarbonyl …

The Preparation And Catalytic Properties Of Rhenium Blacks Obtained By Reduction Of Re(Vii) In Anhydrous Ammonia And Amines With Alkali Metals, David William Seegmiller

Theses and Dissertations

The purpose of the investigation was to determine the catalytic activity of rhenium blacks obtained by reduction of rhenium salts in alkali metal-ammonia or amine systems. A review is presented on the chemical, physical and catalytic properties of rhenium, and on the rhenide ion, on the nature of the alkali metal-liquid ammonia system, and the reduction of metallic salts therein. The first reduction system studied was that obtained by dissolving sodium in liquid ammonia. The salts reduced in this system were KReO_4, Re_2O_7 and NH_4ReO_4. The reduction of KReO_4 was unsuccessful, and the heptoxide was difficult to handle. The product …

The Isomer Distribution In The Sulfonation Of Iodobenzene, Joseph A. Knight

Theses and Dissertations

Using the isotope dilution technique, the distribution of isomers was determined when iodobenzene was sulfonated with sulfur trioxide in liquid sulfur dioxide. The active isotope was S^35. Before this distribution could be established, it was necessary to prepare the pure isomers of iodobenzenesulfonic acid. These were prepared by diazotization of the corresponding aminobenzenesulfonic acids. Since o-aminobenzenesulfonic acid was not readily available, it was necessary that it be synthesized before the diazo reactions could be carried out. Considerable work has been done on the development of a method whereby the bromobenzenesulfonic acids could be synthesized and obtained in pure form. Some …

A Study Of Cholesterol And Lecithin Blood Levels In Rh Sensitized Women Treated With Rh Hapten, Franklyn Lewis

Masters Theses

The Problem And Its Background

Introduction

Perhaps one of the most popular subjects, and a subject which has been discussed a great deal by the layman is that of Rh and Rh incompatibilities.

Landsteiner¹ discovered the Rh property of human blood by means of immune sera prepared with the blood of rhesus monkeys. He was assisted in this work by Wiener², who states that the Rh property was found to be present in about 85% of white individuals, and independent of the blood groups and M-N type. It is these individuals who are referred to as Rh …

The Chemical Behavior Of Iodine At Tracer Concentrations, Henry Morris Eiland

Chemistry and Chemical Biology ETDs

Radiochemistry was introduced as a separate branch of chemistry by Pierre and Marie Curie in 1898. The first radiochemical process consisted of the separation and identification of the new element Polonium from the uranium ores pitchblende and chalcalite. It is significant that this process involved an amount of material so small that it could be detected only by its intense radioactivity. In the last half-century radiochemistry has developed into a field of ever increasing diversification.

The Enzymatic Synthesis And Disproportionation Of Galactosyl Oligosaccharides, Carl L. Tipton

Open Access Master's Theses (through 2010)

It was the purpose of this experiment to obtain unequivocal evidence for the suggested structures of the new oligosaccharides and to obtain evidence in support of the transgalactosylation mechanism of action of the enzyme studied.

Five of the galactosyl oligosaccharides produced during the hydrolysis of lactose by an enzyme prepared from Saccharomyces fragilis have been isolated in chromatographically pure form.The three having the highest chromatographic mobilities have been shown to be 3-0-β-D-galactopyranosyl-D-glucose, 6-0-β-D-galactopyranosyl-D-glucose and 6-0-β-D-galactopyranosyl-D-galactose.The positions of the glycosidic linkages in these compounds were determined by use of the lead tetra-acetate oxidation procedure.These three disaccharides have been characterized by measurement …

A Study Of The Density And Molecular Species Of Polonium And Tellurium Vapor, Angelo L. Giorgi

Chemistry and Chemical Biology ETDs

The purpose of this investigation was to determine the nature of the species of polonium and tellurium in equilibrium in the vapor phase at temperatures ranging from 422 degrees to 1013 degrees C. for polonium and from 512 degrees to 880 degrees C. for tellurium. Such information was based on measurements of the variation of vapor pressure and vapor density with temperature. The results of this investigation suggest that both polonium and tellurium exist as diatomic molecules in the vapor phase over the aforementioned temperature ranges.

Studies Of The Chemistry Of Systems Involving Water, Hydrogen Peroxide And Plutonium (Iv) Nitrate In Tri-N-Butyl Phosphate, Lawrence J. Mullins Jr.

Chemistry and Chemical Biology ETDs

The reaction of tri-n-butyl phosphate (TBP), with water and hydrogen peroxide is studied by means of distribution experiments. The solubility of water in TBP-hexane, at low TBP concentrations, is consistent with the premise that H₂O•TBP is the principal solvate species formed at low hydrogen peroxide concentrations. The distribution data at high hydrogen peroxide concentrations indicate that another species such as H₂O₂•TBP is also present. The reaction of hydrogen peroxide with plutonium(IV) nitrate in TBP is studied by a spectrophotometric method. A complex is formed which contains one plutonium atom and two peroxy-oxygen atoms. The …

A Radiochemical Investigation Of Short-Lived Selenium And Bromine Fission Products, James Edward Sattizahn Jr.

Chemistry and Chemical Biology ETDs

From a sample of uranium bombarded with neutrons, Hahn and Strassmann, in 1939, separated four radioactive products which followed alkaline earth chemistry and were therefore tentatively attributed to isotope of radium. Each of these products decayed to a daughter activity which could be precipitated along with lanthanum; the daughter activities were then assumed to be isotopes of actinium. Subsequently, by accepted methods of fractional crystallization and precipitation, the "radium" and "actinium" isotopes were identified unequivocally as isotopes of barium and lanthanum, respectively. Within a relatively short time there were found more such radioactive products, which were identified as isotopes of …

Behavior Of Indium At Tracer Concentrations, Katheryn L. Lawson

Chemistry and Chemical Biology ETDs

The increase in number and availability of radioisotopes that can be produced in the carrier-free state has offered practical means of investigating the chemical behavior of substances at extremely low concentrations. The working region of concentrations, which may extend to less than 10^-14 molar, is generally fixed only by the half-life of the radio-element and the nature of the radiation.

Volume 3, Number 1 - May 1957

The Entropy

The Entropy (also published as the Providence College Journal of Physics and Chemistry) was an undergraduate scholarship journal published by the Phi Chi Club of Providence College. (Volume 3, Number 1 - May 1957 - 19 pages in total.)

An Investigation Into The Effects Of Ultrasonic Sound Waves On The Electrolytic Oxidation Of The Ferrous Ion, David Joseph Leestma

Bachelors’ Theses

Upon becoming interested in the use of ozone as an oxidizing agent, the author found a reference in the current literature to the production of ozone by means of ultrasonic radiation. It was decided to investigate the effects of this ultrasonically produced ozone upon the ferrous ion. As far as the author has been able to determine, no work of this type has ever been published. This work, then, is of the nature of pioneering fundamental research.

A Colorimetric Quantitative Determination Of Aliphatic And Aromatic Nitro Compounds, George J. Kamin

Bachelors’ Theses

Becker and Shaefer mention that the qualitative test for nitro groups devised by Davidson could possibly be developed into a suitable quantitative test. It is the purpose of this work to attempt such an adaptation. This attempt is not one to develop a true speculative technique, but rather to derive a technique which could be of value in industrial usage, where time and money demand inexpensive rapid methods, which yield reasonable accuracy.

The Dehydrocyclization Of Normal Heptane To Toluene With Supported Rhenium, Platinum And Molybdenum Catalysts, Robert R. Beishline

Theses and Dissertations

The dehydrocyclization activity of supported platinum, molybdenum and rhenium catalysts was studied by determining the toluene yield from n-heptane as a function of temperature and metal concentration in the catalyst. The support was 100 to 200 mesh alumina. Metal concentrations of 0.01% to 1.0% platinum, 0.1% to 2.0% molybdenum and 0.1% to 2.5% rhenium were studied in the temperature range from 500° to 600° C. Platinum was shown to be superior to both molybdenum and rhenium at all temperatures and metal concentrations investigated. The rhenium data were somewhat erratic, but showed rhenium to be a poor dehydrocyclization catalyst. The apparatus, …

The Exchange Of Chlorine Between Hydrogen Chloride And Acetyl Chloride In The Vapor Phase, Warren J. Niell

Chemistry and Chemical Biology ETDs

The aim of chemical kinetics is to predict the rates of chemical reactions, to determine the factors influencing the reaction rate, and to postulate a suitable reaction mechanism.

The Chemical Effects Of Gamma Radiation On Halogenated Methanes, Clifford G. Shultz

Chemistry and Chemical Biology ETDs

The fundamental processes of radiation chemistry and photochemistry are quite parallel, and any consideration of one must include the theory of the other as well. Probably the first work done in photochemistry was that of Stephen Hales on photosynthesis, between 1677 and 1721. This was followed by descriptions of the action of light on silver salts by Schultz, Beccarius, and Scheele. The latter also demonstrated that the action of light on silver chloride varied with the waveleneth of the light. Grotthus, in 1817, stated the first law of photochemistry: Only that light which is absorbed can give rise to a …

The Synthesis And Proof Of Structure Of 2, 4-Dimethyl-6-Hydroxynicotinamide, R. E. Buckles, A. Langsjoen, L. Mueller, I. Svendsen

Journal of the Minnesota Academy of Science

No abstract provided.

Vinyl Polymers Containing Acrylic Acid-1-C, Courtland L. Agre

Journal of the Minnesota Academy of Science

No abstract provided.

The Urea Adducts Of The Constituents Of California Montan Wax, Alan Howard Vanderbilt

University of the Pacific Theses and Dissertations

Interest in the chemical constitution of montan wax began with the work of Von Boyen, who in 1901 showed montanic acid to be a constituent of the wax. In the years that followed the literature has been rich with respect to investigations of montan wax. Most of the literature concerns itself with the technology of the wax, its uses, methods of refining and purification. Much has also been written on its chemical make-up.

It was the purpose of this research to explore the possibility of forming urea adducts of the normal components of montan wax, and to investigate the properties …

A 120 Megacycle Self-Contained High-Frequency Titrimeter, John Kyle Clinkscales Jr.

University of the Pacific Theses and Dissertations

The analytical chemist is ever eager to improve and expedite present analytical methods.. In the past ten years considerable interest .has been elicited in the field of high frequency oscillators and their application to analytical chemistry. One of the main reasons for this interest is the uniqueness of the apparatus. No direct contact is made between the measuring instrument and the solution. Credit tor this interest must be given primarily to Jensen and Parrack of Texas A & M University. Their article in 1946 described a simple tuned plate-tuned grid electronic oscillator, operating in the high frequency range. A solution …

The Use Of P In Preparing Radioautographs, R. B. Hastings, James Dimond

Journal of the Minnesota Academy of Science

No abstract provided.

Thermal Reaction Of Hydrogen And Oxygen In Small Bore Tubes, Shib Charan Chattoraj

Theses and Dissertations

The thermal reaction of hydrogen and oxygen has been investigated from the standpoint of the important intermediate hydrogen peroxide in the region between 620-720 degrees centigrade in small bore Pyrex and steel tubes. The minimum explosion-temperatures with different flow rates and compositions of the mixture have been determined. They have been found to vary with the composition and flow rate of the mixture. The minimum explosion temperature is also found to vary with the condition of the reaction tube surface. The yield of hydrogen peroxide has been determined as a function of temperature, contact time, composition of feed stream, and …

Transference Numbers Of Concentrated Manganous Chloride Solutions, Marshall L. Severson

Masters Theses

"Electrolytic conduction differs from metallic conduction only in the nature of the carrier of the current. In the case of metallic conduction the carrier is electrons. The passage of an electric current through an electrolyte occurs only by the movement of ions of opposite charge moving in opposite directions under an applied potential. The current carried by a particular ionic species is a direct function of the concentration, the charge on the ion, and the ionic mobility. A transference number is the fraction of the total current a given ion carries in a particular electrolyte undergoing electrolysis. The sum of …

The Value Of Including Chemistry Content In The Study Of High School Biology, Ramon Duane Buckley

Dissertations and Theses @ UNI

The purpose was to evaluate the effect of including some definite chemistry content in high school biology. This evaluation was made by comparing outcomes of instruction in two different groups of a high school biology course. The two groups were equated in terms of the intelligence quotients, the sex, and the previous achievement in biology of the class members. The comparative gains in factual knowledge were measured by means of an evaluation test. The comparative gains in appreciations and interests in biology were measured with a questionnaire.

Preparation Of Thiochalcone From Thioacetophenone, Thomas Joseph Reilly

University of the Pacific Theses and Dissertations

This thesis covers the practical research done on the condensation of thioacetophenone with benzaldehyde and the library research covers the chemistry of thioketones and the thioflavanones. Most of the thioketones have been made by dissolving a ketone in ethanol, usually absolute although 95 percent was also used, saturating the solution with anhydrous hydrogen chloride at ice temperature, then admitting hydrogen sulfide for several hours. This method was first used by Fromm and Baumann when they made thioacetophenone from acetophenone. David Shirley also gives theis process in his book “Preparation of Organic Intermediates” published by Wiley and Sons in New York. …

The Synthesis Of 7-Methyl-3,4-Benzpyrene, 6,7-Dimethyl-3,4-Benzpyrene, 10-Methyl-3,4-Benzpyrene And 7,10-Dimethyl-3,4-Benzpyrene, Joseph Leonard Comp Jr.

Chemistry and Chemical Biology ETDs

Interest in carcinogenic compounds began to develop when a form of cancer was found occurring in chimney sweeps in 1775. Skin cancer was found among workers in tar industries in 1875, and in 1887 workers in cotton spinning industries were known to have cancer which was attributed to contact with lubricating oils. Girls who painted the luminous dials of watches contracted cancer from exposure to the radioactive paint, and men who worked with B-naphthylamine developed bladder cancer. Many other cases of occupational cancer were reported before a systematic study of carcinogenic substances was begun. Early attempts to produce cancer in …