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The Solubility Of Inorganic Salts In Ether, Clarence Bernard Weiss

Masters Theses

"The data on the solubility of inorganic salts in ether is scarce. Eder made a study of this subject and found few salts whose solubility could be called high. He used both hydrated and dehydrated salts. Neumann mentions the great solubility of aluminum chloride in ether, but did no work to find its exact proportions. It was thought that perhaps with this particular salt, a solubility curve might be obtained that would be both instructive and interesting. Therefore the major portion of this work was spent in determining the solubility of aluminum chloride in ether. Other salts whose solubilities were …

Heavy Minerals In The Roubidoux And Other Sandstones Of The Ozark Region (Mo.), Cletus Daniel Cordry

Masters Theses

"In this study an attempt has been made to determine the usefulness of heavy minerals for correlation of formations over a limited area, in the heart of the Ozark uplift in southeast Missouri. The Roubidoux formation, already definitely correlated by other means, has been rather systematically sampled throughout the area, and the heavy minerals determined to ascertain their dependability for correlation purposes. Several samples from other horizons have been studied for comparison with the Roubidoux. Also, within the area studied there are numerous isolated patches of sandstone, the horizons of which have not been definitely determined. Samples from a few …

The Solubility Of Inorganic Salts In Carbon Disulfide: The Case Of Aluminum Bromide, Herman Henry Kaveler

Masters Theses

"Since about 1890, the interest in solubility has turned to a large extent to the investigation of the solubility of compounds in organic solvents. This has resulted in a great deal of work being done on the solubility of inorganic salts in non-aqueous solvents. As this mass of data steadily accumulated, the theoretical considerations of solubility and the ideal solution made rapid advances, as Hildebrand has pointed out. We express as much wonder over these theoretical advances as chemists did over the discover "that salts do dissolve in organic compounds". To add some useful data to that already accumulated on …

A Study Of Petroleum Emulsions, Howard Halcomb Gross

Masters Theses

"The producer of crude oil experiences a continuous source of trouble and loss in the emulsion problem. These emulsions cannot be entirely discarded for several reasons: First because it is a waste of natural resource and second because there are such large quantities that no feasible outlet could be found on account of fire hazard and stream polution [sic]. Further to keep these emulsions in storage for slow settling puts a storage burden on the producers. To handle the emulsions most economically many producers are treating them and a large number of methods for treating have been devised. The object …

Solubility Of Solid Paraffins In Lower Molecular Weight Hydrocarbons, Ruth Veino Goodhue

Masters Theses

"The solubility of solid paraffins in the lower molecular weight liquid hydrocarbons offers a problem of some considerable commercial importance since it is by use of these low boiling hydrocarbons that the undesirable paraffin waxes are removed from lubricating oils in the Sharples process. Little data is to be found in the literature on the solubility of the paraffin waxes, and that which is available is of a very general nature...This work was undertaken for the purpose of finding if possible, what effect this "cracking" or "telescoping" process has on the solubility of the paraffins in the liquid hydrocarbons"--Introduction, page …

Effect Of The Use Of Old Retorts As Grog And Of Zinc Oxide Upon The Properties Of Bodies For The Manufacture Of Retorts, Elmer Gammeter

Masters Theses

"In the fall of 1924 the Mississippi Valley Experiment Station of the United States Bureau of Mines, Department of Commerce, in cooperation with the Missouri School of Mines and Metallurgy began an investigation of the properties of raw materials used in the manufacture of retorts for the zinc industry. The investigation proceeded cooperatively until December, 1926, when the Bureau of Mines withdrew from ceramic research. The School then took over and is completing the problem as outlined. The first phase of the investigation had for its object the determination of the properties of the fireclays and body mixtures now in …

A Study Of The Iodine Content Of Representative Missouri Waters, Edmond Carl Hunze

Masters Theses

"Investigations have shown that the iodine content of natural waters bears a direct relationship to the goiter incidence of a given region. A number of the states have analysed [sic] their water for this constituent in the development of this hypothesis. A search of the literature revealed the fact that with the exception of two instances the iodine content of Missouri water had not been determined. Since in certain regions of Missouri there is quite a prevalence of goiter, it was deemed important to determine the iodine content of Missouri waters. It was believed that such information would be a …

The System: Calcium Oxalate - Sulphuric Acid, Joseph Maple Wilson

Masters Theses

"The manufacture of oxalic acid includes as one of the steps in the process, the conversion of calcium oxalate to the desired oxalic acid by treatment with sulphuric acid, and the subsequent crystalization [sic] of the oxalic acid from the solution of it thus made. This investigation has dealt with this conversion step, with regard to the various factors affecting it. The effect of time, acid concentration, temperature, volume of solution, solubility of reaction products, and possible compound formation have all been considered, and from the information thus gained the conclusion has been drawn"--Introduction, page 1.

A Study Of The Reduction Of Zinc Oxide By Hydrogen And Methane, Frederick Adam Weirich

Masters Theses

"The purpose of the investigation was to make a study of the reduction of zinc oxide by hydrogen and methane and to study the conditions for the most efficient condensation of the zinc vapor"--Investigations, page 4.

Electrothermic Dry Distillation Of Zinc, Ira Nathan Goff

Masters Theses

"Although the work described in this thesis cannot be considered as complete, until certain mechanical changes have been made and the furnace operated continuously over a considerable period of time, this electrothermic dry distillation process for the extraction of zinc from ores offers excellent commercial possibilities. The literature has been reviewed, the process that was used at East St. Louis described, and the results of work at the Mississippi Valley Experiment Station of the United States Bureau of Mines, Department of Commerce, Rolla, Missouri along the line of electrothermic metallurgy of zinc considered"--Summary, page 58.

The Properties Of Refractories In Zinc Metallurgy. Part Iii. Comparison Of Various Clays, Richard Elkanah Sears

Masters Theses

"This thesis...contains a description of a part of a general investigation on the subject of the refractories used in the distillation of zinc. This investigation has been in progress for the past eighteen months at the Mississippi Valley Experiment Station of the United States Bureau of Mines, Department of Commerce, in cooperation with the School of Mines and Metallurgy of the University of Missouri. The first phase of this investigation had for its theme the determination of the properties of the fire clays and body mixtures now used in the manufacture of zinc retorts. The second phase deals with the …

A Study Of Electrometric Methods For Determining Selenium And Tellurium, Bertie Lee Browning

Masters Theses

"The quantitative oxidation of tellurious acid to telluric acid by potassium dichromate has been shown by Lenher and Wakefield to be applicable to the volumetric determination of tellurium. The purpose of this investigation was to study the applicability of the electrometric method to this titration"--Introduction, page [1].

The Properties Of The Fire Clays Used For The Manufacture Of Zinc Retorts, Adolph Harmon Kuechler

Masters Theses

"The ultimate object of this refractories investigation is to develop a body for zinc retorts, or changes in the method of their manufacture, that will result in better retorts than the ones now in use. In doing this, the question of permissible cost must, at all times, be kept in mind. The immediate object of the present phase of this investigation, of which this thesis covers only a part, is to determine the physical and chemical properties of the refractories (fire clays, grogs, bodies, etc.) now used for the manufacture of zinc retorts. This will be a basis for later …

Conductivity And Ionization Of Certain Salts In Absolute Alcohol, Armin Brene Jewell

Masters Theses

"One of the most striking observations one makes in connection with the study of the conductivities of alcoholic solutions is their great similiarity [sic] to those of aqueous solutions with the exception that the values of the concentrations are very much smaller. The differences are rather of degree than of kind. It will be noted that as the temperature is increased the molecular conductivity increases and the fraction of salt decreases which is what would be expected by analogy"--Discussion, page 43.

The Reduction Of Zinc Oxide By Carbon, George August Zeller

Masters Theses

"In spite of the fact that the reduction of zinc oxide by carbon is the fundamental reaction upon which the pyrometallurgy of zinc is based, there is a decided lack of accurate knowledge concerning the mechanism of the reaction, the temperature at which it begins, and the effect of various factors upon the rate at which it takes place"--Introduction, page 1.

The Solubilities Of Certain Inorganic Salts In Anhydrous Normal Alcohols, William Orval Keeling

Masters Theses

"An examination of the literature shows that extensive studies have been made of the solubilities of inorganic salts in aqueous, normal alcohols, but that little has been done in determining the solubilities in anhydrous alcohols. Northing was found of a systematic study of the solubilities of NaCl, KCl, NaN0₃ and KNO₃ in the lower alcohols over a fairly wide range of temperature. The author has made a study of the solubilities of the above mentioned salts in lower anhydrous normal alcohols at the temperatures 20°C, 25°C, 30°C and 40°C"--Introduction, page 1.

Hydro-Electric Treatment Of Joplin-Miami Zinc Concentrate, David Francis Walsh

Masters Theses

"The Electrolytic Process is a process capable of almost unlimited mechanicalization. For obvious reasons it is more economic to treat high grade concentrates; yet, the extremely high grade concentrates are not essential. The Electrolytic Process can treat economically concentrates as low as 30.% zinc under certain conditions. It is significant that as the grade of concentrates offered for treatment is lowered, the treatment cost per ton of concentrates decreases for the Electrolytic Process; whereas, it will increase, as previously stated, for the Retort Process. It is seen then that the position of the Electrolytic Process is strengthened where lower grade …

Lactose Fermenting Bacteria In The Water Supplies Of The Rolla Quadrangle, Joe Beaty Butler

Masters Theses

"I. Preliminary investigations. This includes the securing of 139 water samples from water sources in the Rolla Quadrangle, and inoculating 1cc samples from these into Dunham's Lactose tubes and thereby getting lactose gas production checks on the field samples. II. Confirmatory tests. This consisted in the isolation of lactose fermenters on Eosin-Methylene Blue Agar and checking of the cultures back through the lactose and then through dulcitel and saccharose so as to complete Jackson's Classification. 106 cultures were classified in this manner. III. Running through a complete set of tests of pure cultures, so as to completely (as possible) identify …

On Plain Carbon Steel, Walter Edward Remmers

Masters Theses

"In 1921, an investigation was carried on by Messrs. Howe, Foley and Winlock, under the auspices of the National Research Council, the results of which were published under the title of - "Influence of Temperature, Time and Rate of Cooling on Physical Properties of Carbon Steel," by the American Institute of Mining and Metallurgical Engineers, February, 1923. These results showed that all physical properties of a 0.34 C. percent steel are improved by increasing the rate of cooling from temperatures above the critical range up to a certain rapidity beyond which, there is a gain in strength at the expense …

On The Breakage Of Rock Drill Steel, Muir Luken Frey

Masters Theses

"Prior to 1920 there was little attention paid to the general problem of breakage of rock drill steel. Each locality had its problem and the matter was treated as a purely local one, independent upon conditions in that particular section. But in the above-mentioned year, there arose an interest of wider scope, from what causes it is impossible to determine accurately, and the matter is now the subject of a broad investigation in which the users of rock drill steel, the United States Bureau of Mines, and the United States Bureau of Standards are cooperating...There is, to date, no satisfactory …

Effect Of Time And Temperature On Distillation Of Zinc-Lead-Silver Complex Sulphide Concentrates, Ernest Sterling Wheeler

Masters Theses

"Accurate information is lacking as to the effect of temperature and time of distillation on the relative proportions of zinc, lead and silver volatilized from complex ores, and while it is evident that the possibility of the commercial treatment of these complex ores has engaged the attention of metallurgists for years, it is one that will still bear investigation even on a small scale"--Statement of Problem, page 5.

Design And Construction Of The Experimental Mine, Robert Knox Stroup

Masters Theses

"The mining laboratory and experimental mine at the Missouri School of Mines was opened in 1913. At a suitable location, on the site of an old dolomite quarry, one and one half miles southwest of town a tunnel was started into the hillside and the necessary plant erected. This plant consisted of a fifty horse-power Erie Iron Works boiler of the modified locomotive type, and an Ingersoll Rand type 10 single stage duplex air compressor of a capacity of one hundred cubic feet of free air per minute. This plant was in operation during the fall months of each year …

Determination Of The Solubilities Of Lithium, Sodium, And Potassium Sulphates In Absolute Methyl And Ethyl Alcohols, Jennie Lynn Lenox

Masters Theses

"It was thought by the author that there might be some relation between the solubility of a salt in the alcohols and the position of those alcohols in the series of monohydric alcohols; that is, that there should be a definite increase or decrease in the solubility of any particular salt in going from a higher to a lower alcohol. The object of this paper was to find the solubilities of some simple salts in as pure alcohol as could be prepared, and to find any relationships if possible"--page 2.

Drill Steel Investigation, Richard J. Stroup, Kurt H. De Cousser

Masters Theses

"

Purpose of Investigation

To determine the best composition of a straight carbon drill steel for drilling in granite.

Method of Investigation

1. Obtain several brands of standard grade drill steel. Determine analysis and transformation points of each.
2. Determine that heat treatment which gives the best drilling qualities in granite.
3. Determine the micro-structure of such steel.
4. Obtain steel of a certain specified composition considered best for the conditions and compare the results on this steel with the results obtained on the market products.
5. Design of heating furnace for forging steels.

It will be observed from what follows that this outline was …

High Speed Steel - Its History, Development, Manfacture, Metallography, And Constitution, Including An Extended Bibliography, James Presley Gill

Masters Theses

"There is no doubt but that the making of Steel was known and practiced by the early Greeks probably several centuries before the birth of Christ. There have been discoveries of pre-historic forges and smelters evidently used for the making of iron and steel and it is certain that implements made of these materials dates back to antiquity. As to the methods of making the steels of antiquity there is little known, but it is quite probable since iron has a strong affinity for carbon that in the forging of the iron it's contact with the carbonaceous fuel would absorb …

The Middle Ordovician Section In East Central Missouri, Morris James Ingerson, Josiah Bridge

Masters Theses

"One of the most serious difficulties confronting anyone working on stratigraphic problems in the Ozark area is the lack of detailed faunal lists of the various formations. A great deal of general work has been done, but very few detailed faunal studies have ever been published, and correlation of the Missouri section with sections in adjoining states is often difficult.

In a recent paper, Dake has discussed the origin and correlation of the St. Peter sandstone. In this study he found considerable difficulty in correlating the various formations above the St. Peter, and at his suggestion, the present study was …

Drill Steel Investigation, Joseph Herman Rohloff

Masters Theses

"Several brands of standard grade drill steel were obtained [and tested]"--page 1.

The Action Of Nitrogen Trioxide On Pinene, Ernest Wayne Rembert

Masters Theses

"The action of nitrous acid on pinene was first studied by Pesci and Bettelli in 1885. they obtained an oil, which, when treated with NH₄OH and steam distilled gave a product of the formula C₁₀H₁₆NO₂. At this point the investigation was discontinued. It is the purpose of this work to show the true mechanism of the reaction and also to establish the formula and nature of the products obtained"--Introduction, page 3.

The Copper Deposits Of Shannon County, Missouri, John Hyer Bowles, Lewis Ely Davidson

Masters Theses

"The object of this report has been three-fold. First, it has been deemed necessary to discuss the general geology of the area about Eminence, showing the distribution and character of the different formations. The distribution is shown on a topographic map of the Eminence Quadrangle...In the second place, it is intended to give a detailed account of the history, development, and extent of mining operations in Shannon county, with the amounts of production and the occurrence of the ore. The third object of this report is to develop a probable theory for the genesis of the ore, and to discuss …

Furfural (Furfuraldehyde) And Some Of Its Derivatives, Marion Smith Badollet

Masters Theses

"In the spring of 1919 the Eastman Kodak laboratories suggested to the chemistry department of the Missouri School of Mines and Metallurgy that experiments on small-scale production of furfural be undertaken. After a series of experiments a small amount of this product was made and a report was given before the American chemical Society at St. Louis in April 1920. The furfural prepared at the Missouri School of Mines and Metallurgy was sold to the Eastman Kodak laboratories. Within recent years very little experimental work has been done on furfural. It commands a high price as only small amounts are …