Physical Sciences and Mathematics Commons^™

The Influence Of Pyrite On The Oxidation Of Galena, William Newton Clark, Mark Stephen Mazany

Bachelors Theses

"In this paper are given: (1) Confirmatory evidence of the influence of pyrite on the rate of oxidation of galena under conditions approximately natural, geological conditions. (2) Detailed description of all the chemical analyses involved"--page 19.

The Oxidation Of Natural Sulphides, Harry Clay Kibe

Bachelors Theses

"Work upon the oxidation of natural sulphides done at this laboratory indicates that laboratory methods might be successfully employed in seeking explanations of certain actual problems in the theory of ore deposition. This led me to experiment further with galena, sphalerite, and iron pyrite, which work confirms the results of Gottschalk and Buehler, namely, that the course of an oxidation is materially effected when mixtures of sulphides are employed rather than single individual minerals"--page 1.

The Oil Industry Of The Coalinga Field, A. Emory Wishon

Bachelors Theses

No abstract provided.

Effect Of Certain Minerals On Fire Assay Of Lead, Earl Mccolloch Smith, Rowe Francis Mccrae

Bachelors Theses

"Our problem was to determine the affect in the lead assay of certain minerals commonly accompanying lead ores. The minerals used were calcite, pyrite, blende and chalcocite"--page

A Study Of Some Problems In Assaying, Aaron Max Shah

Bachelors Theses

"It is known that the lead button which we obtain from fire assay for silver does not represent the true value of the ore. There is always a loss of silver. To investigate the effect of varying the fluxes on the loss in silver is the object of the first part of this thesis...Silver ores often contain copper, part of which, during the fusion, enters the lead button, causing trouble during cupellation, since it must be done at a high temperature. It is, then, important to keep copper out of the lead button. The presence of litharge in the fusion …

Chemical Analysis Of Foods And Their Adulterants: Being An Investigation Into The Nature, Relative Value And More Common Forms Of Adulterations Of Certain Foods, William Samuel Long

Chemistry Honors Papers

This 26 page thesis examines the composition, natural variations, and artificial variations of various foods.

The Effect Of Antimony On The Assay Of Gold And Silver Ores, Herman Carl Hase, Charles Lewis French

Bachelors Theses

"Our problem was to determine the effect of antimony in assaying for gold and silver. The method of attack was to find loss of gold and silver: 1) with variable antimony and a constant temperature. 2) with variable temperature and constant antimony"--page 1.

The Effect Of Certain Minerals Upon The Volatilization Of Silver Chloride, Boyd Dudley Jr.

Bachelors Theses

"The work undertaken in this investigation was first suggested in connection with the analytical determination of Silver and Chlorine by weighing silver chloride. Later, however, the experiments assumed a metallurgical character. The final purpose of the experiments was to determine the effect of a few of the common mineral constituents of ores on the loss of silver during a chloridizing roast. In the metallurgy of silver it is frequently necessary to change the silver bearing minerals into silver chloride"--page 1.

Design Of A Lead Blast Furnace, Walter Irving Phillips, Andrew Jackson Seltzer

Bachelors Theses

"In order to get the approximate size of the Furnace we made the following assumptions, being guided as far as possible by the practice of the Globe Smelting Works at Denver, Colorado whenever that could be ascertained"--page 1.

Analyses Of Limestones And Shales, Byron John Snyder

Bachelors Theses

"The limestones were analyzed to determine their value for cement and lime manufacture, and were taken from several counties in the state of Missouri. Most of the limestones examined were very pure. A considerable quantity of well burned lime is added to other material in the manufacture of cement, a lime of very pure type being the most acceptable in this work"--page 1.

Analytical Determination Of Copper Products, Charles Dosh Smith

Bachelors Theses

"It is a well known fact that the presence of impurities in copper products has been a source of annoyance to the Chemist. The object of this thesis was to make myself familiar with the actions of different impurities in copper products, and the methods for the determination of Arsenic in the same"--page 1.

Neutralization Of Free Acid (H₃P O₄) In Commercial Mono-Calcium Phosphate (Ca H₄ (Po₄), George William Harris, Harry Adam Grine

Bachelors Theses

"The object of this thesis has been a systematic research based on the characteristic properties and reactions of mono-calcium phosphate, Ca H₄ (PO₄)₂, tending towards the development of a process for neutralizing the free phosphoric acid, H₃PO₄ formed during its manufacture"--page 1.

Design Of A Mill For A Cyanide Plant, Charles A. Fach

Bachelors Theses

"Object. Designing a mill, which according to my ideas, would be the best in practice. The machinery used in practice at the present time, is mostly old style. In this work of mine I have substituted a great deal of lately invented machinery which would give much better and quicker results than the machinery now used. Many ideas have come to me while working on this subject which I think would assist me in any further work on the subject"--page 1.

The Systhesis Of Camphor From Pinene, Edwin W. Newbury

Bachelors’ Theses

The increasing demand for camphor for use in the manufacture of cellulose plastics has led to a great amount of investigation of the nature of this valuable substance and as to its synthesis from materials which are readily obtainable without the necessity for sending overseas for them. At present most of the camphor used in the manufacture of celluloid and allied compounds is imported from Japan or Borneo, where it is obtained, in a rather crude and wasteful fashion, from a species of laurel. Some scientifically operated camphor plantations have been started in the United States.. In one such plantation …

The Determination Of Aluminium, Victor Hugo Gottschalk

Masters Theses

No abstract provided.

Assay Of Copper Matte For Gold And Silver, Walter E. Soest

Bachelors Theses

"Ores containing copper, and especially copper matte, have always been very annoying in assaying for the precious metals. In assaying copper matte, and ores containing much copper, by the usual method of scorification, the losses of silver an gold are considerable, owing to the fact that in order to obtain lead buttons, which are soft and free from copper, repeated scorifications are necessary, and moreover it is impossible to obtain lead buttons which are entirely free from copper"--page 1.

Action Of Caustic Hydroxides Upon Aluminum, Herbert Fordyce. Rogers

Bachelors Theses

No abstract provided.

The Neocene Lake Beds Of Western Montana And Descriptions Of Some New Vertebrates From The Loup Fork, Earl Douglass

Graduate Student Theses, Dissertations, & Professional Papers

Since coming to Montana in the spring of 1894 I have spent rnuoh of ay time in studying the lake bed deposits in the western part of the state, and in collecting and studying the vertebrate fossils found in them. These deposits occur in nearly every large valley in the westem part of the state. I have myself observed them in the valleys of the upper Missouri (above the re-rrion of Helena), Gallatin, Madison, Jefferson, Beaverhead, Ruby, Big Hole, Hell Gate, and Bitter Boot rivers, and their tributaries.

Changes Of The Bed Of White River In Marion County, Indiana, E. M. Graham

Manuscript Thesis Collection

No abstract provided.

Studies In Tellurium, Victor Hugo Gottschalk

Bachelors Theses

No abstract provided.

Examination Of Water Supply Of Indianapolis, Alonzo S. Roberts

Manuscript Thesis Collection

An assessment of municipal and well water supplies of Indianapolis in 1897.

The Spectroscope In Celestial Physics, S. A. Harker

Manuscript Thesis Collection

No abstract provided.

Topographical Surveying, Nelson D. Brayton

Manuscript Thesis Collection

A study of the use of surveying and topography to develop maps.

White Lead, Evans Walker Buskett

Bachelors Theses

No abstract provided.

Producer Gas, Edward P. Dwyer

Bachelors Theses

"Producer gas, so named owing to being produced in special forms of apparatus known as Producers. The fuel is decomposed into combustible gases, whereby most of the C is burnt to CO, whilst the H either remains free, or is converted into carburretted Hydrogen. Directly above the grate carbonic anhydride is formed but thus is rapidly converted into carbonic oxide; reaction as follows: CO₂ + C = 2CO.

Amongst these heavy carburetted hydrogen (C₂H₄) is that which principally increases the value of the gas as fuel and the drier the fuel used the more of the gas is produced. A …

The Alcohols, Charles E. Baker

Manuscript Thesis Collection

A study of Alcohols and the human body's reactions to them.

Studying Properties Of Xenon Doped Argon And Developing Optical Simulation Techniques For The Legend Collaboration, A Neutrinoless Double Beta Decay Experiment, Neil Christopher Mcfadden Dr

Physics & Astronomy ETDs

Neutrinoless double beta decay is a hypothesized lepton-number-violating process in which two neutrons decay to two protons, producing two electrons but no electron antineutrinos. The LEGEND collaboration will search for this decay in ⁷⁶Ge. To improve the argon active veto for LEGEND-1000, xenon doped argon was explored as an alternative active volume. Simulations using argon doped with 10 ppm xenon and pure liquid argon were used to predict the light yield from cosmic muons in a 100 liter cryogenic vessel. The simulations predicted that xenon doping would yield 1.83+/-0.02 more light, while an increase of 1.81+/-0.05 was measured. From …