Physical Sciences and Mathematics Commons^™

The Cleaning Action Of Detergents And Soaps On Printer's Ink And Lubricating Oils, Daniel David Holzman

Bachelors’ Theses

During the past few years, industry has developed a steadily increasing interest in certain new types of synthetic organic compounds.

Industry devoted to the cleaning of textiles has found the removal of printer's ink and lubricating oils a tedious operation.

There has been developed and perfected a series of synthetic materials which successfully meet modern needs.

The detergents, in general, have some or all of the following properties: wetting-out, dispersing, emulsifying, penetrating, and cleaning.

There seems to be a need to investigate some of these new detergents for commercial cleaning purposes.

The Substance In Yeast Which Stimulates Gastric Secretion, C. F. Hoffman Jr.

Masters Theses

A number of substances are known which stimulate gastric secretion either when introduced into the lumen of the stomach or intestine, or when injected intravenously or intramuscularly. Among substances that have been tested experimentally by direct introduction into the stomach and have been found active as stimulating agents are beta-alanine, histamine, adrenaline, and peptone (1).

Substances which affect gastric secretion following their intramuscular or intravenous injection act through a humoral mechanism. Among compounds which have been tested for such effect are: Histidine. This has no effect on gastric secretion (2). Choline. Intravenously it weakly stimulates volume and acid (3). Lacithin. …

An Experimental Investigation Of Certain Phases Of The Reaction Of Meta Dinitrobenzene And Carbonyl Compounds, William Elson

Master's Theses

No abstract provided.

A Study Of The Preparation Of Phenyl Sodium, William W. Jenkins

Master's Theses

No abstract provided.

Titration Curves Of Indicators, Marvin F. L. Johnson

Master's Theses

No abstract provided.

Dielectric And Solvent Effects Upon The Regeneration In Acid Solution Of Alkali-Faded Bromo Phenol Blue., Joseph Bailey Price

LSU Historical Dissertations and Theses

No abstract provided.

A Study Of The Electrolytic Reduction Of Pyrrole, Don Richard Strehlau

Masters Theses

"A review of the chemical literature has shown that electro-organic methods compare favorably with purely chemical methods for certain syntheses belonging to the following general classes of reactions: coupling, oxidation, reactions with halogens, and reductions. Electro-organic methods have been used most successfully in synthesis by reduction. The chief advantage is using electrolytic reduction in preference to a chemical one is that it offers a more exact control of conditions, and consequently should give a higher yield and a purer product. The advantages of the means of reduction suggested an investigation of its use in the synthesis of hydrogenated products of …

The Conversion Of Certain Amino Acids To Carbohydrate In Normal Animals, Bergere Alfred Kenney

Chemistry and Chemical Biology ETDs

The glycogenic effects of the individual amino acids, in the metabolism of normal animals, are by no means well defined. IN some cases, as in those of alanine and glutamic acid, the tendency of the acid to form glucose is generally accepted; in others, of which leucine and lysine are good examples, there is definitely no glucose formation; in still other cases, namely those of glycine and cystine, the contradictory nature of the results obtained by different investigators gives anything but a clear picture of the situation...

It is the purpose of this paper, therefore, to attempt such an estimation …

The Preparation Of Chlorobromo Dinitromethane And Its Reaction With Liquid Ammonia, Edward N. Case

Honors Theses

The nitro-alkyls have been recorded in the literature for many years. The preparation of the lowest completely nitrated hydrocarbon, tetranitromethane, from acetic acid, acetic anhydride, and fuming nitric acid, has been described by Berger. (1) On reaction with liquid ammonia it forms a salt of nitroform (2). Nitroform can be converted into tetranitromethane by dissolving in a heated mixture of fuming nitric and concentrated sulfuric acids (4). The potassium salt of dinitromethane has been prepared by Villiers (3). This method for the formation of chlorobromo dinitromethane was the one used in this work.

Investigation Of The Etching Patterns Of Silicic Acid Gels, Stephen H. Laning

Honors Theses

It was found that dissolving silicic acid gels on glass surfaces with strong sodium hydroxide, peculiar etching patterns were formed before the gel dissolved. The observation lead to the study of the etching patterns by photographs and other data for it was believed that these patterns would reveal the structure of the gel.

Thermal Reversibility Of Silicic Acid Gels, John H. Spittle

Honors Theses

The purpose of this research paper is to find out whether a silicic acid gel may be made which will be reversible with respect to temperature; that is, whether there is a gel which may be liquefied by heating or cooling.

The Corrosive Effect Of Sodium Acid Sulfite Solution Upon Stainless Steel As Compared With Carbon Steel And Cast Iron, Arthur John Haug

Bachelors’ Theses

Tilghman, in 1866, discovered the fundamental principle of the sulfite process - the treatment of wood with a solution of sulfur dioxide gas in water, with the addition of an alkaline bisulfite. However, he was un­able to pursue this discovery because of the difficulty of obtaining acid resisting materials.

Melting Point Studies Of Binary Mixtures Of Barbowax 4000 And 1500 And Various Waxes In An Air Chamber, Arnold P. Feider

Bachelors’ Theses

While selecting the subject of research for this thesis the author had the opportunity to consult several thesis conducted at Marquette University on the melting points of waxes.

The Preparation Of Some Typical Organoboron Compounds, Glen David Barbaras

Bachelors’ Theses

Organoboron compounds have long been known, the first being prepared by Frankland as early as 1862. No particular interest in these compounds was aroused, how ever, because of the difficulty and expense of their preparation as well as their extreme instability. From time to time further attempts at their preparation were made and a few reactions were ob­ served. With the rise of modern electronic theories of chemical combination, however, organoboron compounds were discov­ered to exhibit properties and undergo reactions which would substantiate these theories. Consequently, since 1936 possi­bly over a hundred of these compounds of many different types have …

A Discussion Of Sulfanilamide And Related Compounds, E. Curtis Leuallen

Chemistry Honors Papers

This 34 page thesis discusses the history of sulfanilamide as well as its preparations, derivatives and uses as a treatment for a variety of illnesses.

Chemistry Demonstrations In Public, Leonard A. Ford

Journal of the Minnesota Academy of Science

No abstract provided.

A Biochemical Study Of The Egg Yolk Discolorization Produced By Feeding Hens Cottonseed Meal., Albert Donald Swensen

LSU Historical Dissertations and Theses

No abstract provided.

The Preparation And Properties Of Some 1-Alkyl-Cyclopentanols And Their Derivatives., Crawford Reid Mclellan

LSU Historical Dissertations and Theses

No abstract provided.

Some Useful Devices For The Chemical Laboratory, L. B. Roberts

Journal of the Arkansas Academy of Science

No abstract provided.

Crystals Of An Insoluble Carbonate Of Copper Grown Under A Soda Solution, L. B. Roberts, Edwin Roberts

Journal of the Arkansas Academy of Science

No abstract provided.

Vapor Pressures. I. Para-Dichlorobenzene; Glycol Diacetate., L. B. Roberts, James D. Wolfe, James Hawthorne

Journal of the Arkansas Academy of Science

No abstract provided.

Modification Of The Qualitative Procedure For Lead, L. B. Roberts, Edwin Roberts

Journal of the Arkansas Academy of Science

No abstract provided.

The Removal Of Chlorides And Sulfates By Synthetic Resins., Lucille Grace Boudreaux

LSU Historical Dissertations and Theses

No abstract provided.

Studies On The Quantitative Analysis Of Rhenium And Its Occurrence In The Products Of Molybdenite Processing, Walter Keith Dean

Masters Theses

"There is at the present time no commercially developed source of the metal rhenium in the United States. Since this metal is known to exist in molybdenite, it was felt that a study of the products of the metallurgical processing of this mineral might reveal a source of rhenium that could e developed. The Climax Molybdenum Co. provided a number of samples from their smelter at Langloth, Pennsylvania. Although an improved method for the quantitative estimation of rhenium was recently published, its accuracy was not high and the procedure exacting and time-consuming. These combined factors led to the selection of …

A Study Of The Effect Of Certain Variables On The Titration Of Silicic Acid, James S. Walker

Honors Theses

If a solution of sodium silicate is titrated with a strong acid, using methyl orange as an indicator, a very different end point is obtained from that obtained using phenolphthalein as an indicator. This difference is well established as being due to the ionization of silicic acid, either acidically or basically after the soda in the silicate has been neutralized by the strong acid. It was the intention of the experimenter to study this acid from the standpoint of the effect of certain variables, in the titration of sodium silicate with a strong acid, on the end points obtained.

The Preparation Of Symnetrical Tri Aryl Phosphines, George Brandes

Honors Theses

The purpose of this research project was the preparation of pure, symmetrical aromatic phosphines. These were to be used in dipole moment measurements for the calculation of the spatial arrangement of the carbon-phosphorus valence bond in the phosphines.

Concerning The Volume Change Resulting From The Sol-Gel Transformation Of Silicic Acid, Joseph Berg

Honors Theses

The subject matter of this thesis is concerned with a study of the volume change observed during the period of transition, from the sol to the gel state, of silicic acid.

The Reaction Of Diphenyl Cadium With Phosphorus Trichloride, Alfred Henry Case

Honors Theses

Any study of the stereochemistry of tricovalent atoms would necessarily involve members of the third and fifth periodic groups. Tertiary phosphines with heavy groups would be most valuable for this work since phosphorus seems to be better suited to exhibit asymmetry than any other element of the fifth group. (24) It is believed that the heavy groups would slow down the oscillations of the phosphorus atom and make possible the resolution of the optical isomers. The purpose of this investigation was a further study of this possibility, particularly the reaction of organo-cadmium compounds with phosphorus trichloride. In this case two …

A Study Of The Physical Properties Of Dibromdinitromethane And Its Reaction In Liquid Ammonia, Quintin Perry Cole

Honors Theses

Although there are at least half a dozen methods of preparing dibromdinitromethane given in the literature (1), the only physical properties mentioned are freezing and boiling points. Hence, after making the compound in order to study its reaction in liquid ammonia, data was obtained on other physical characteristic.

Setting Of Silicic Acid Gels In An Alkaline Medium, Frank James Alois

Honors Theses

As this piece of research essentially is a check Pomatti’s (1) only half as many points were taken. The time of set of silicic acid gels was carefully taken as the alkalinity of the medium was allowed to increase while the total volume of the gel was maintained constant. The runs were taken at three different temperatures so that temperature effects could be observed. Naturally enough, the pH’s of the gels were taken to place this work on quantitative basis. All pH measurements were accomplished by means of the colorimetric method which was first employed by Pomatti.