Digital Commons Network^™

A Study Of The Amino Nitrogen In Various Gelatins By Means Of The Ninhydrin Reaction, Wilma Jane Thrush

Bachelors’ Theses

Experimental work and study has shown that the activity figures measuring the effects of proteolytic enzymes, such as, pepsin, trypsin, and papain are not the same for the various gelatins used as substrates.

An Experimental Study Of The Destruction Distillation Of Corn Cobs, Wendall Lee Perry

Bachelors’ Theses

The utilization of waste products is daily becoming more and more important. It has always been a big problem of industry to utilize its waste material; and as a result, limitless effort has been spent in the attempt to stress utility and economy in all forms of production. Under ordinary circumstances, the utilization of many waste products has been disregarded because of the large expense involved; but in critical times such as the present, expense becomes a secondary issue, and the actual production of necessary material becomes foremost. It is true that the waste connected with large industries is very …

The Effect Of Time, Temperature, And Pressure On The Hydrogenation Of A Mixture Of Linoleic And Oleic Acids, Gordon S. Wepfer

Bachelors’ Theses

During the past few years interest and experimentation in the field of hydrogenation of different fats and oils has increased enormously. Strides made in the oil-hardening industry have surpassed all expectations. These advances were brought about by simplifying old methods and creating new ones. The probable reasons for this impetus in research is due to the fact that unexpected uses for hydrogenated oils and fats have been found and will continue to be found. With the increase in use of these products the market for them will also increase. Recently, the resin industries have produced useful products by condensing pure …

The Study Of The Physical And Chemical Factors Influencing The Plankton In The Menomonee River, Hermoise Katz

Bachelors’ Theses

The reasons for the choice of this study are several in number. Previous collecting trips had shown to some extent the relatively high productivity of organic life in this stream. From superficial external evidence, however, it seemed likely that the stream should contain some degree of pollution. The contradictory nature of these two observations called for furthur investigation. Then too, the nearness of the location of the Menomonee River to Marquette University contributed to the facility of such an investigation, and also pointed to the possibility that such a survey might be of some use to the Department of Biology. …

A Study Of Resins From Carbohydrates, Edward F. Sullivan

Bachelors’ Theses

The availability of large amounts of carbohydrates, and the need in the past years of larger markets for the available supplies of sugar have lead a number of sugar companies to investigate the possibilities of synthetic resins from carbohydrates. Although in the last ten or twelve years, a number of steps have been taken in the investigation of sugar resins, the information available has been restricted to a few patents. Consequently, information on the chemistry of the problem has been neglected. Thus, this work, for the most part, covers partially the possibilities of producing alkyd resins from saccharides, as well …

Solubilities Of Glycerides, Alois L. Wagner

Bachelors’ Theses

The mono, di, and triglycerides have many uses in industry; each of these glycerides has a specific purpose, if not directly, then as an intermediary compound .in the synthesis of a glycerol derivative. In order to obtain the highest efficiency in a synthesis, or as a matter of fact, in any phase of chemistry, the production of a homogeneous result demands the use of pure uniform constituents.

The Effects Of A Carbohydrate Deficient Diet On The Mouse, Walter Rudolph Sala

Bachelors’ Theses

Deficient diets have been used extensively as the basis for zoological experiments concerning the metabolism, and dietary requirements of individual animals. The majority of this work has been carried on with the rat as the subject, and resulting external physical variations as the experimental aim. The writer used the mouse as his subject, but, since no literature was available concerning this animal, a few similar experiments performed on the rat will be cited.

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 …

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 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.

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.

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

LSU Historical Dissertations and Theses

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.

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.

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.

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

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.

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 …

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

LSU Historical Dissertations and Theses

No abstract provided.

A Study Of The Variation Of Concentration Of Sulfuric Acid As An Electrolyte Between Two Copper Electrodes, Scott S. Tomter

Bachelors’ Theses

When Arrhenius presented his theory of electrolytic dissociation approximately fifty years ago, little did he realize that this theory would prove to be one of the corner stones in the epoch-making developments in chemistry since that time.

Electrochemistry, although still in early development, has risen so greatly in importance that it is now a necessary process in industrial chemistry. It can be estimated fairly that about one-seventh of all manufactured goods are prepared by electrochemical processes directly or indirectly; i.e., in the manufacture of the finished article or in the process of preparing the material.

Interest, herein, is centered on …

The Direct Chlorination Of Benzene And The Preparation Of Alpha And Beta Benzene Hexachlorides, Hubert B. Meloche

Bachelors’ Theses

This research was undertaken in order to study the breaking of the double bonds in a benzene ring by some means other than direct hydrogenation. A study of the literature reveals that the benzene ring has been broken up by chlorination giving hexachlorides of benzene as products of the reaction. But no information regarding the hexachlorides themselves or their method of preparation could be found in the current literature.

A Study Of The Effect Of Various Organic Polar Groupings On Inhibiting The Corrosion Of Steel By Sulfuric Acid, Frank H. Stockhausen

Bachelors’ Theses

Much has been written on the testing of organic compounds to inhibit the sulfuric acid corrosion in the pickling of steel. For the most part, however, this has been confined to work either on commercial inhibitors which are usually coal tar derivatives of unknown composition, or upon complex amines or sulfonates with little attention paid to comparing the types of polar linkages. The emphasis has been placed on the complexity of molecular structure rather than a thorough analysis of what structure really means in inhibiting action.

The Effects Of Various Salts On The Proteolytic Enzymes In Malt Using Gelatin As A Substrate, John Mandak

Bachelors’ Theses

Because the new viscometric method offers a manner of measuring enzyme activity in a relatively simple manner, it is being applied to the various phases of enzyme study.

The Effect Of Catalyst And Time Upon The Oxidation Of Cotton Seed Oil Air Blown At 115 Degrees C, Joseph Toth

Bachelors’ Theses

Of late years, the manufacture of oils oxidized by the direct action of air upon them, has greatly increased. ’’Blown oils”, as these are called, render non-drying or semi-drying oils (rape, cotton seed, etc.) more suitable for paint, either directly or as ingredients in paint mixtures. In the case of drying oils (linseed oil, etc.), oxidation changes necessary to produce more rapid absorption of oxygen from the air by the oil, is brought about more rapidly.

This experimentation was suggested by the work of A. Ivanova, who blew air through cotton seed oil at 115°C until required drying properties were …

A Study Of The Electrodeposition Of Chromium Directly On Aluminum, Paul E. Truttschel

Bachelors’ Theses

The electrolytic deposition of chromium has been an accomplished fact since the early 1920's. Considerable investigation had taken place before this, but it was not until 1920 that any process had been devised to make chromium plating successful commercially. Since then, and especially in the last ten years, this has been a favorite research problem amony[sic] many electrochemists and the results have been most gratifying.

By far the greatest amount of work has been done, however, using metals such as copper, steel, and brass for cathodes, very little information being obtainable concerning the chromium plating of aluminum. Most of the …

The Separation And Identification Of The Solid Linseed Oil Fatty Acids By Fractional Crystallization Of Acetone, Albert J. Schlaeger

Bachelors’ Theses

It Is surprising to note in the literature that oils and fats like linseed, tung, tea seed, soya bean and other oils although employed in the arts for many centuries still have their exact composition unknown. The fatty acids composing most of our common fats and oils are recognized but many of their properties still remain to be known. Up to the lat fifteen years the examination of oils was concerned only with the purity of a sample and with crude methods only rough compositions were calculated.

The Effect Of Time, Temperature, And Pressure On The Hydrogenation Of Castor Oil, Anthony Toth

Bachelors’ Theses

The intention of the author in doing this research was to obtain some data on the effect of time, temperature, and pressure on the hydrogenation of castor oil at 100°C. The author is also interested to see if a method could be devised by which the saturated and unsaturated fatty acids could be separated from the hydroxy acids of hydrogenated castor oil.

A Determination Of The Melting Points Of Binary Mixtures Of Halowax 1014 And Natural Waxes By The Dropping Pellet Method, Leslie Jones

Bachelors’ Theses

The original intent of this thesis was twofold: First, to adapt the dropping pellet method of determining melting points to the determination of the melting points of various binary mixtures of Halowax 1014 and natural waxes. This work follows up the investigation of Kroening who used the ball and ring method of determining the melting points of mixtures of various Halowaxes and natural waxes. Second, to attempt to ascertain whether there are formed in these binary mixtures chemical compounds which would account for their peculiar behavior as regards melting points.

The Effect Of Alcohols On Paramecia, William C. Lawler

Bachelors’ Theses

A phenomenon of surpassing biological interest is the adjustment of living substance to its surroundings. That living things should so act as to promote their own welfare is indeed wonderful; that such acts are common is evident on every hand.