Physical Sciences and Mathematics Commons^™

The Crystallation Of Estrogen-Binding Protein From Candida Albicans, Carl Francis Ackerbauer

Honors Theses

Cells of the type, Pt +, Metallic Salt, Incadescent Electric Lamp, were investigated for a study of the elctrolytic proceses whereby various ions entered and replaced others already in the glass. The medium has a high viscosity even to temperatures of several hundred degrees. The Study was confined to the nature of the changes and a possible quantitative result. Glass conducts electrolytically at all temperatures but more so at high temperatures, the Na + travels toward the cathode while the Sio--, not being a simple ion, and being very sluggish remains practically stationary. If the material, capable of supplying ions …

A Study Of Some Properties Of Silicic Acid Gels, William Joseph Rothemich Jr.

Honors Theses

When a solution of sodium silicate or water glass is mixed with an acid sooner or later a gel is formed. The speed of gelation is known to be dependent upon the concentration of water glass, the excess of acid or alkali present, agitation, temperature, and the kind of acid used. In my work with the setting of the gels these five points were kept as constant as possible.

The Determination Of Hydrogen Ion Concentration By The Electrometric Method, Evelyn Matthews Cook

Chemistry Honors Papers

This 12 page thesis examines the measurement of ion concentrations in solution using electrometric titration.

A Study Of The Dissociation Of Calcium Hydride, Kenneth Elwin Walker

Honors Theses

The calcium hydride equilibrium has been investigated by a number of men but the results obtained have been almost as diversified as the the number of workers. There is considerable doubt as to the mechanism of the dissociation and the compounds formed. Some workers claim evidence of the two hydrides while others found only the normal hydride, CaH2. In most of the previous work, the equilibrium has been more or less disturbed by the volatility of the calcium and the hydride and also the reaction of the calcium or the hydride on the quartz containers. In this work an attempt …

An Analysis Of Pecan Nut Shells, Marie I. Bond

Bachelors’ Theses

This thesis deals with the methods or analysis or pecan nut shells and an attempt to identify the extracted pigment.

At present nut shells are waste products. This makes their study interesting from a commercial standpoint. In view of the fact that very little work of this kind has been done, nut shell analysis offers interesting research problems as well as excellent practice in the technique or organic analysis.

Such great interest is now being taken in plant pigments that, a thorough investigation of the red pigment yielded by pecan nut shell would be an appreciated contribution to science.

Experiments On The Effect Of Current Density Of The Porosity Of Chromium Plated Steel, William G. Hilger

Bachelors’ Theses

The application of chromium plating in industry has grown out of a series of experiments conducted in the past few years. However as early as 1854, research was carried on in this field, but it was only in the years 1920 - 1925, that the chromium plating industry became an actual fact. From then on it has progressed very rapidly. In the present day chromium is applied for two main purposes: (a) to produce a permanent and decorative effect and, (b) to prolong the life of mechanical parts subjected to unusual conditions of wear or temperature. The electrodeposition of chromium …

The Amount And Identification Of Amyl Alcohols In A Commercial Mixture Of Pentanols, M. Eugenia Eberhard

Bachelors’ Theses

Casing head gasoline obtained from natural gas yields five commercial products. One of these is a mixture of amyl alcohols. As treated by the Sharples Company, West Virginia, pentane is separated and treated with chlorine. Three chlorine derivatives are produced. These are treated with caustic soda and may f'orm eight possible amyl· aloohols~1 The products of the normal pentane, only, are the subject matter of this thesis.

The Effect Of Current Density On The Efficiency Of A Brass Cathode In Chromium Plating, Anton E. Budner

Bachelors’ Theses

That chromium could be electrodeposited from chromic acid baths, has been an accomplished fact for over 70 years. However, only in the past few years, has the mechanism of the process been sufficiently understood to permit chromium plating on a commercial basis. Because of the properties and advantages of this particular deposit, tremendous interest and activity has developed in this practically new field. Numerous patents have been granted, but relatively little specific scientific information has been published. Much work can yet be done towards the development of this field. It is the problem of this thesis to study the effect …

A Study Of Various Metallic Electrodes In Potentiometric Titrations, Louie Boncyk

Bachelors’ Theses

The significance of ion concentrations has been the subject of many investigations during the last few years. The results obtained have demonstrated without question the unlimited possibilities existing for laboratory and industrial applications of ion concentration measurements. It has been shown in many instances biological activity, fermentation, and filtration are influenced to a large extent by variations in the H-ion concentration. In addition, the way is open for improved control and accuracy in the many neutralization problems encountered in the laboratory. The lack of suitable electrodes has greatly retarded the practical applications of H-ion measurements to plant industrial problems. The …

The Distillation Curves Of Several Liquid Binary Stystems Of Various Aliphatic Alcohols With Benzene And Toluene, Jack Philip Eigen

Bachelors’ Theses

The object of this thesis is to determine the distillation curves of several liquid binary systems and to locate any constant boiling mixture by means of graphical representation.

Such an investigation has a commercial aspect. A research of this kind is valuable to the paint industry, and also for any industry interested in preparing very pure liquids by distillation. The following investigation limits itself to a study of. boiling point curves of mixtures of various aliphatic alcohols with benzene or toluene. These systems are reputed to have a minimum boiling which would be very valuable in the paint industry as …

Iron And Cobalt Salts As Catalysts In The Oxidation Of Sodium Sulfite By Free Oxygen, Loren C. Bryner

Theses and Dissertations

The present investigation was carried out to show the catalytic effect of some iron and cobalt salts on the oxidation of sodium sulfite solutions by free oxygen. The rate of reaction was determined by measuring the volume of water required to replace the absorbed oxygen. A photograph and diagrammatical arrangement of the apparatus is given, (Page 14). From the preliminary experiments it was found that the rate of oxidation of sodium sulfite solutions is dependent upon concentration, and speed of the shaker.

The Quantitative Analysis Of Sodium Acetate, Henry A. Budzinski

Bachelors’ Theses

There are many methods by which Sodium Acetate can be analysed for its purity. Each method is satisfactory and the results obtained vary only slightly. However, this essay is for the purpose of determining the method which is most suitable for all conditions, and setting this method as a standard.

Scholasticism An Intellectual Basis And Unifying Principle Of Modern Science, Alice V. Johnson

Electronic Thesis and Dissertation

Amid the almost uninterrupted disintegration of systems during the last three centuries, the philosophy of St. Thomas has alone been able to stand the shock of criticism; it alone has proved sufficiently solid and comprehensive to serve as an intellectual basis and unifying principle for all the new facts and phenomena brought to light by modern science.

The Effect Of Carbon Dioxide Tension Upon The Ability Of Goldfish To Abosorb Oxygen At Low Tension, Thressa A. Hickman

Masters Theses

Within recent years much has been contributed to our knowledge of the physiology of respiration. Van Slyke (1921) in a study of the carbon dioxide carriers of the blood concluded that hemoglobin is almost as completely responsible for the transport of CO₂ in the blood as it is for the transport of oxygen. And that from 80% to 95%, sometimes possibly all, of the alkali furnished to neutralize the CO₂ that enters the venous blood comes from the hemoglobin.

Powers (1922) found that species of marine fishes have an optimum pH of more or less wide range for …

A Study Of The Oxidation Of D-Glucose With Air In A Saturated Solution Of Barium Hydroxide, Clyde Wilson Eddy

Open Access Master's Theses (through 2010)

The conversion of one aldose into another aldose and several ketoses slowly by weak alkalis at ordinary temperatures and quickly with much decomposition at elevated temperatures, was first observed by Lobry de Bruyn and later investigated by Nef and his students in an elaborate study on the action of strong alkalis alone and with oxidizing agents extending over a period of ten years. The results of these studies on oxidation were interpreted as depending on the presence of several intermediate enediols. The oxidation of sugars in approximately six normal alkali medium with air or oxidizing agents all give about the …

A Problem Involved In The Parkerizing Of Iron And Steel, Frank A. Harmer

Bachelors’ Theses

The problem involved in the parkerizing of iron was presented by the National Lock Washer Company of Milwaukee, Wisconsin

Scholasticism An Intellectual Basis And Unifying Principle Of Modern Science, Alice V. Johnson

Electronic Thesis and Dissertation

No abstract provided.

A Study Of The Electrical Resistance Of Glass As A Function Of The Temperature, William Alfred Yager

Honors Theses

This work was undertaken with the initial intention of determining the specific resistance of various kinds of glass as a function of the temperature. Various methods of measuring the resistance of glass were tried. In this experimental work, 60 cycle alternating current was used throughout while the conductivity unit shown in Plate 1 proved a very satisfactory and convenient arrangement for comparing the resistance of glass at various temperatures. Time did not permit the measurement of specific resistances as intended.

The Sensitivity Of The Ortho-Tolidine Test For Free Chlorine In Milk Serum, Estelle Downer

Bachelors’ Theses

In the Journal of Industrial and Engineering Chemistry for November, 1913, J.W. Ellms and S.J. Hauser introduced the ortho-tolidine test for the detection of minute quantities of free chlorine in water. Antecedant to the experimentation of the above men with ortho-tolidine, the starch-iodide test ·was universally used for the· detection of free chlorine. In this test, the chlorine is calculated by liberating iodine from potassium iodide by the available chlorine, and the iodine being titrated with sodium thio sulfate. starch solution is used as the indicator. However, this particular method offers difficulties in the presence of minute quantities of chlorine …

The Preparation Of Certain Inorganic And Organic Compounds Which May Be Of Use In Mineralogical Separations, Clarence Jay Black

Masters Theses

"In the work with minerals, there has been many mechanical means devised whereby the ores could be separated from the gangue and other material. Among those means which are used to-day, especially in the laboratory tests upon minerals, to quickly determine the value of an ore, heavy liquids have become quite popular. This means of mechanical separation is merely to place finely ground ore containing particles of varying density into a liquid of heavier density than the greater portion of the mineral, which will allow the heavier portions to sink and the lighter to float, which is usually gangue. This …

A Study Of The Baking Process Of Oil Varnishes And Enamels, Roy Herman Kienle

Honors Theses

Before any object which has been given a coat of varnish or enamel is ready for use, the varnish film must be converted to the solid state. This is accomplished either by allowing the film to air dry or by baking it. For a considerable number of purposes air drying is satisfactory. However, in some of our largest industrial applications, as for example in portions of the electrical and automobile industries where the most severe requirements are demanded of a varnish film, baking is extensively used. In certain of these manufacturing operations, as in the manufacture of enameled wire, and …

Measurement Of Particle Size And Distribution In A Suspension, William Tappen Eveleth

Honors Theses

The purpose of the present investigation was the determination of size of "Glyptal" in suspension.

Studies Of Alkali Metals, Lester Clark Lewis

Honors Theses

Studies of the alkali metals have directness that leads to progress in both our general knowledge of chemistry and in common usefulness, which so encourages and rewards the advance of pure knowledge.

As commonly studied, in combination, they react so simply that we study them when we look for simplicity.

The Picric Acid Method Of Sugar Determinations As Applied To Solutions Containing Maltose And Lactose, John J. Hennecke

Bachelors’ Theses

Lewis and Benedict based their method of sugar determination upon the reaction which takes place when a glucose solution is heated with a few C.C. of picric acid to which a small amount of alkali has been added.

The Effect Of Aldehydes On The Solutions Of Iron Wire In Hydrochloric Acid, Mary Margaret Bannen

Bachelors’ Theses

The destruction of iron by corrosion, under the influence of natural agencies, is far more rapid than the decay of wood and other materials of construction. Were it not for iron, the erection of large works of engineering would be impossible. Their very size and consequent cost represent a large sum of human energy. This is, after all, the only true foundation for wealth and it becomes a duty to preserve iron from decay.

The Oxidation Of Mineral Oils And The Effect Of Positive And Negative Catalyst On The Oxidation Process, Arthur John Sherburne

Honors Theses

Although the readiness with which petroleum oils oxidize when exposed. to heat and air is well-known, and a great many so-called "service and "sludging" tests have been devised to ascertain and predict empirically, the value of oils when put to use as lubricants in automobiles, turbines, etc., or in transformers and condensers as heat absorbers and dielectric, little has been known of the chemistry of the oxidation of oil and of the quantitative effect on this oxidation of various catalytic substances. An ever increasing interest in petroleum chemistry can be noted by a reference to the literature of the past …

Equilibrium In The System Calcium, Calcium Hydride, Hydrogen, Douglas Small

Honors Theses

Moissan first showed in a qualitative way that hydrogen and calcium form a combination which is very little dissociated below 700 degrees C. He also showed that this compound can be expressed by the chemical formula CaH2 and seemed to be a well defined compound. Gautier makes a statement that calcium hydride begins to dissociate as soon as the hydrides of strontium and barium (about 675 degrees C.) Moldenhauer and Roll-Hansen made a systematic study of the dissociation from 780 degrees C. to 1027 degrees C. These workers point out that the equilibrium pressures may be masked by the action …

Selenium Sulfide -- A New Detector For Mercury Vapor, Birger Wilhelm Nordlander

Honors Theses

A new indicator for mercury vapor of extremely high sensitivity has been found; indeed, there seems to be practically no lower limit to the concentration that can be detected. This method is based on the reaction between active selenium sulfide and the vapor. The selenium sulfide is applied as a coating to paper and the coated paper is blackened on exposure to the air containing mercury vapor, the degree of blackening being a function of time of exposure, concentration of the mercury and other factors, which can be definitely controlled. Apparatus has been developed by means of which it is …

The Solubility Of Solid Paraffin In The Lower Molecular Weight Hydrocarbons, Paul Weber

Masters Theses

"In the process of oil refining, a certain fraction of distillate from the crude oil composes the so-called wax distillate fraction from which is obtained the various lubricating oils. But the presence of the waxes and solid paraffins in these oils is very undesirable as they possess no lubricating qualities. Consequently, they must be removed from this wax distillate before the oil can be marketed"--Introduction, page 1.

A Study Of Triboluminescence, George David Read

Honors Theses

The study of triboluminescence, a phenomenon of no great practical value at the present time, is representative of a class of phenomena which scientists choose to call “cold light” and whose cause has for many years been without satisfactory explanation. Because of the fact that no use has been found for the action which brings about this production of light very little work has been done to determine, quantitatively, any facts regarding it, and we have only a few theories which have been advanced without sufficient experimental data to prove any of them. Hence, this work was undertaken with only …