Physical Sciences and Mathematics Commons^™

Determination Of The Dipole Moment Of Indole, Robert George Dreyfuss

Honors Theses

The purpose of this research was to determine the dipole moment of indole, by a method that involves using the Yellow Springs Instrument Company’s Dielectric Constant Meter. The application of this new instrument made it necessary to determine its applicability and accuracy in this particular experiment. The experimental part of this research is comprised of the determination of the dipole moments of four compounds. The compounds and solvents used are as follows: 1. Meta-dinitrobenzene in benzene 2. Paranitrotoluene in dioxene 3. Benzotriazole in dioxene 4. D indole in dioxene B indole in benzene The first two compounds were used as …

Investigation Into The Synthesis Of Indazole, Max Peter Dreyfuss

Honors Theses

These investigations were undertaken in order to study the effect that various acyl or aroyl groups on o-toluidine have on the yield of indazole, when the latter is prepared by the methods of Barclay, et. al. (1) as modified by Rzeszotarski (23). In addition further information on the mechanism of the reaction and on the structure of indazole was sought from these data.

Electrodeposition With Graded Cathode Potential, William Mairs Earnest

Honors Theses

In a constant current electrolysis, which is the unusual method of determining a substance quantitatively by electrodeposition, a single metal, in solution, is plated out on the cathode of the electrolysis cell. The current is maintained fairly constant by adjustment, little attention is paid to the potential applied to the cell. This method may be used if there is only one metal in solution, or it may actually be used to separate two metals if one lies above and the other below hydrogen in the electromotive series. In this case, hydrogen is evolved at the cathode after the deposition of …

A Study Of The Reaction Of Portland Cement With Certain Acids, Robert Alfred Laudise

Honors Theses

Portland cement was treated with various concentrations of hydrochloric, acetic, and sulfuric acids. The reaction products, mixed gels of SiO2, Al203, and Fe2O3, were examined for commercial possibilities. Liquid absorption of organic dyes was used as a criterion of surface activity. When 10gm cement was reacted with 100m.l. of acid solution, it was found that the reaction went to completion at 3 molar HCl, 3 normal H2SO4, and about 7-9 molar HAc. The best absorbers for methylene blue were formed by the reaction of 2.5-3 molar HCl and 6-9 molar HAc. The absorption of some of these gels were carefully …

Thallium Dithizonate, Bruno Jaselskis

Honors Theses

Attempts to establish a useful dithizone method in the determination of thallous ion have been carried on at Union College by Snyder (19). Because the previous work had not produced satisfactory results and because in general thallous dithizonates have not been studied, the following work, under Dr. W. G Ewing’s guidance, was undertaken.

The Inhibition Of The Thermal Polymerization Of Styrene, William Russell Stoll

Honors Theses

In continuing the work of Cohen and Opitz the percent polymer formed by the inhibition of the thermal polymerization of styrene with chloranil at one hundred degrees is determined to be 0.0025%. The first polymer is precipitated by absolute methanol approximately twenty minutes before the end of the induction period. For polymer determination an analytical method is developed, which is applicable for concentrations between 0.001% and 0.022% by weight measures the solution turbidity after precipitation from the monomer. This method can be extended to 0.08% polymer. Polymer percentages to be measured in this manner greater than 0.02% were diluted with …

A Study Of The Setting Of Alkaline Silicic Acid Gels, Allen Mutimer Palmer

Honors Theses

This study of alkaline silicic acid gels was a continuation of the previous work done at Union College on alkaline silicic acid gels. The purpose of this study was to collect data on the time of set of various alkaline gels at different pH values and at different temperatures, and to find if any alkaline gels were thermally reversible.

A Study Of The Mechanism Of The Reaction Between Styrene And Tung Oil, Edwin Charles Shuttleworth Jr.

Honors Theses

An attempt to explain the mechanism of the reaction between styrene and tung oil by separation and analysis of its products is the purpose of this thesis.

The Preparation, Properties And Reactions Of B-Diethylaminoethoxy-Methylsilanes, Edward G. Tajkowski

Honors Theses

In the course of work on the application of silicones to textiles and paper, chiefly to impart water repellency thereby, it has been found that the most desirable method for industrial operations is from water solution. Methods for preparing emulsions of silicones have been developed and such materials are available commercially. However, it would still be of interest to obtain a material which is directly water soluble and which is either a silicone itself, or can be simply and easily converted to a silicone in situ.

These facts were brought out by Dr. D. P. Spalding (1) in a discussion …

The Effects Of Ph And Salts On The Viscosity Of Gelatin Sol (The Hofmeister Series), Frank Z. Pollara

Honors Theses

The purpose ot this investigation was to accurately determine the effect of monovalent sodium salts on the viscosity of gelatin sol as a function of pH and to establish the Hofmeister series by this method.

The gelatin investigated was derived from pigskin and the salts used were NaCl, NaNO3, and NaI, of various concentrations. In order to justify and make reasonable the conclusions reached in this investigation, these conclusions must be viewed in the light of the work previously done by other investigators of this field.

With this in mind, a short historical survey of the origin and development of …