Physical Sciences and Mathematics Commons^™

A Study Of The Organic Dye Nitrazine As An Indicator For Acid-Base Titration, Grace Nachod

Chemistry Honors Papers

This 13 page thesis examines the organic compound nitrazine as an indicator in acid - base nitrations.

Pyro-Sulfate Ion In Solution, Geo. Glockler, R. I. Meland

Journal of the Minnesota Academy of Science

No abstract provided.

Coloration Of Alkali Silicates By Carbon Arc And Sunlight, Geo. Glockler, A. R. Johansson

Journal of the Minnesota Academy of Science

No abstract provided.

Preparation Of Thianthrene, Eugene Alton Talley

Master's Theses

This work was begun in an attempt to study further the preparation of thianthrene from 2-dichlorobenzene and alkali sulfides. g_-Dichlorobenzene is a liquid by-product in the preparation of its solid isomer, E-dichlorobenzene, which is used extensively for controlling moths and peach tree borers. The study of the preparation of thianthrene from the liquid isomer was undertaken because the preparation might develop into a possible use for the large quantities available.

Thianthrene might be made from 2-dibromo- and 2-diiodo-benzene but these are not as cheap or as easily obtained as the dichloro derivative and were not used in this study various …

The Preparation Of Organosols, Wilfrid Francis White

Master's Theses

No abstract provided.

The Catalytic Vapor-Phase Hydrolysis Of Benzene And Toluene, Clemens Raebel Maise

Masters Theses

"The vapor-phase synthesis of organic compounds represents a new field of study which has attracted the attention of investigators only within recent years. However, wide interest is apparent in this field and several processes of commercial importance have already been developed. Hydrolysis is perhaps the newest of all the types of vapor-phase synthesis; the literature consists of little more than a few patents...The vapor-phase hydrolysis of benzene and toluene, therefore, presented an interesting possibility. These two hydrocarbons are considered very stable toward water in the liquid-phase. The purpose of this investigation was to determine to what extent their stability toward …

Corrosion Of Aluminum In Alkaline Solutions, George Oliver Doherty

Bachelors’ Theses

Aluminum has been an important member of the metal group since its isolation about 100 years ago. It has sprung into prominence in the commercial field and in household use in the last thirty years. The metal is light, possesses good thermal and electrical conductivity and as an alloy with other metals takes on a surprising degree of strength.

The problem of producing aluminum cheaply enough to make it practical has finally been overcome to a great extent. It now remains to be seen just what further uses there are to which this new metal may be put. Aluminum may …

The Effects Of Certain Salts Upon The Saccharogenic Activity Of Three Typical Enzymes, George F. Gastler

Electronic Theses and Dissertations

In a previous investigation carried out in these laboratories, Moxon and Franks (1), have shown the toxicity of sodium salts of selenium, vanadium, arsenic and tellurium toward the production of carbon dioxide during yeast fermentation of glucose. The toxicity of the salts occurred in the order given. In the same investigation (1), it was shown that sodium sulfide and sodium sulfite exert an accelerating effect.

The Construction And Use Of An Apparatus For The Measurement Of Dipole Moments By The Solution Method, William Lankford Duncan

Dissertations, Theses, and Masters Projects

No abstract provided.

The Preparation Of Glucuronic Acid From Gum Acacia, Mary Laurissa Felix

Bachelors’ Theses

Initial interest in the preparation of glucuronic acid from gum acacia was prompted by several reasons. Being interested in both the chemical and biological fields, the subject of glucuronic acid made a strong appeal. Although glucuronic acid was discovered over fifty years ago, its position in physiology remained until recently undefined. Now, however, it seems fairly certain that this compound is closely related to carbohydrate metabolism and plays an im­portant role as a detoxicating agent in the body.

The laboratory preparation of glucuronic acid is still one of the important problems of chemistry. Our present knowledge of its synthesis and …

Syntheses In The Thiophene Series, Alfred William Weitkamp

Department of Chemistry: Dissertations, Theses, and Student Research

SUMMARY

The Friedel-Crafts reaction has been used in the preparation of thiophene ketones, some of which were hitherto unknown. Certain limitations of the reaction have been noted.

The mercuration of thiophene ketones has been systematically investigated for the first time. Many new halogen derivatives of benzothienone have been synthesized. These were employed in the elucidation of the structure of a complex mercurial· derived from this ketone.

A new modification of an old reaction has been developed whereby benzothienone can be mercurated quickly and almost quantitatively. Interesting derivatives of this little known ketone have been synthesized. Chief among these are the …

A Chemical And Biological Study Of The Waters Of Elephant Butte Reservoir As Related To Fish Culture, John Greenbank

Chemistry and Chemical Biology ETDs

The purpose of this preliminary survey was to determine, in so far as was possible in the limited time that was available, the general suitability of the waters of the reservoir for fish life, and to make such recommendations for future fish culture policy as seemed to be advisable. AN unpublished report of this preliminary survey was written by Dr. Hazzard.

Public Water Supplies Of New Mexico, Kenneth F. Priest

Chemistry and Chemical Biology ETDs

Distribution of population in State. The estimated population for the State of New Mexico for the year 1930 was 423,300. A close observation of the population centers shows them to be scattered over a wide range of territory. The largest city, Albuquerque, has approximately 26,000 citizens. The next sites, according to the 1930 count, are three in number, Santa Fe, Roswell, and Clovis. The remaining population including rural districts do not number over eight thousand people.

Heats Of Solution In Liquid Ammonia, Walter A. Denison

Honors Theses

Liquid ammonia has properties which make it useful and interesting for making chemical thermodynamic investigations, as had been pointed out by Franklin, and Kluge.

Conductivity Measurements In Silicic Acid Gels During Setting, Joseph R. Ciaranello

Honors Theses

During the course of extensive investigations of the properties and behavior of silicic acid gels, the study of the conductivity of these substances was begun in the hope that data could be assembled to throw some light on the mechanism of gelation. The experiments to be described are a continuation of the work on conductivity carried out at Union College under the direction of Dr. C. B. Hurd. H. Swanker (1), in 1932, making use of a Wheatstone bridge at 1000 cycles, failed to find any change in conductivity, but R. W. Gurry (2), using refined methods, was able to …

Study Of The Setting Of Gels Of Hydrated Titanium Dioxide, Elliott Fraser

Honors Theses

Since titanium is in the same group in the periodic table as silicon, it should form gels in a similar manner. This expected similarity was the starting point for the following research.

The Preparation Of Pure Silicic Acid Gels By The Oxidation Of Silane, William G. Gapcynski

Honors Theses

The oxidation of silane, SiH, with ozone to give a hydrosol of silica of a very high degree of purity has been accomplished by Baibajew and Kargin. Such a sol is practically free from any electrolytes or other impurities. The purpose of this research work was to prepare by this method pure silica sols of a concentration great enough to eventually form a gel free from any electrolytes. It was desired to study some of the properties of such gels, especially the time of set and the changes if any in the pH of the gel during the time it …

Influence Of Temperature And Acid On Time Of Set Of Silicic Acid Gels, Angelo J. Marotta

Honors Theses

The chief purpose of this research was to study the time of set of silicic acid gels produced by the reaction of phosphoric acid and sodium silicate solutions. The secondary purpose was to determine the hear of activation by means of the data procured through the main purpose. The times of set of these gels were measured at four different temperatures. The pH of each gel was measured also. The pH of the above mentioned gels ranged from a pH of 3 to a pH of 10.

The Effect Of The Change Of Ph During The Time Of Set, Upon The Time Of Set Of Silicic Acid Gels, Harris W. Paton

Honors Theses

The study of this particular subject was made in the hope that it might lead to a more complete explanation of the manner of setting of gels. It was thought that by changing the pH during the time of set irregularities in the course of the setting of the gel might be found. It was thought, for example, that there might be a period during which the addition might have less effect than average, or a period where it would have a much greater than average effect. These periods might possibly have occurred at any part of the time of …

Freestone County, Texas [Water Quality Survey Of Wells And Springs With Test Hole Data, 1936], Samuel F. Turner

United States Geological Survey: Water Reports and Publications

Introduction

The purpose of this survey was to obtain information concerning existing wells and springs and the quantity and quality of water they yield, and to put down test holes where additional information was needed.

This project was part of a statewide Works Progress Administration project known as a "Statewide Inventory of Water Wells," sponsored by the [Texas] State Board of Water Engineers. The Division of Ground Water of the United States Geological Survey cooperated in the technical direction of the project and the Bureau of Industrial Chemistry of the University of Texas furnished laboratory space and equipment and supervised …

A Consideration Of The Cobalt Complexes, Jack Maloney

Chemistry Honors Papers

This 13 page thesis examines structural problems and preparation methods of complex cobalt compounds.

Nickel And Its Determination, Robert Fitzpatrick

Bachelors’ Theses

I have found great pleasure in writing this thesis on Nickel and wish to express my appreciation for the assis­tance received from various sources. The thesis itself contains a brief history of the metal followed by an experi­mental determination of the nickel content of some commer­cial steels. These were kindly furnished by the analytical department of the International Harvester Company to whom I am grateful.

For the history of nickel I am especially indebted to the account by Robert c. Stanley, President of the Inter­national Nickel Company, reproduced in Wilhelm's, The Book of Metals.

For the material on the …

A Comparison Between The Percent Of Maltose Sugar In The Malt Wort And The Characteristics Of The Malt, William Black

Bachelors’ Theses

Interest in this problem was brought about through working with malt in a malting laboratory. The curiosity of the author prompted research along the lines herein explained and a correlation between the amount of maltose in a malt wort and other variable factors explained in the following chapters was sought.

There has been a great deal of work done in the malting field which adapts itself readily to organic research. The chemistry of malt and malt products has arrived at a state where regular standard analysis can be applied. However, the research possibilities are practically unlimited and this work done …

Operational Characteristics Of The Differential Dynamometer: Conductometric Titrations, Raymond Joseph Melchione

Master's Theses

No abstract provided.

Studies On The Clarification Of Cane Juices In Louisiana., Subba M. R Rao

LSU Historical Dissertations and Theses

No abstract provided.

Preparation And Properties Of Alpha Nitrogen Derivatives Of Furan., Henry Marvin Singleton

LSU Historical Dissertations and Theses

No abstract provided.

Some Reactions Of Creatinine With Certain Aliphatic Halogen Derivatives, Howard Edwards Wright Jr

Master's Theses

The object of this investigation is to prepare some derivatives of creatinine from certain aliphatic halogen compounds with emphasis on the nature of the reactions through which condensation takes place.

A Study Of Methods For The Recovery Of Silver, Bromine, Iodine, And Sodium Thiosulfate From Used Photographic Fixing Baths, Leroy Agustave Bay

Masters Theses

"Sodium thiosulfate was one of the pioneer reagents used in photography, and is still the most important reagent used in photographic fixing. The solubility of the silver halides in an excess of sodium thiosulfate makes it important as a reagent for removing the undeveloped silver halides from the film. The life of a fixing bath is controlled by the halogen content. As the ratio of halogens to sodium thiosulfate is increased, the time required for fixing is also increased until the ratio reaches such a point that fogging of the film results. Most of the solutions are discarded long before …

A Biochemical Study Of Colloidal Sulfur., Gertrude L. Hendershot

Electronic Theses and Dissertations

No abstract provided.

Cleavage By Organic Magnesium Compounds., Maxwell Mcclelland Barnett

LSU Historical Dissertations and Theses

No abstract provided.