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[Administrators at an event]

Description: Photograph of three unidentified people, possibly part of the North Texas Administration, standing in an interior. One older woman holding a fur wrap/jacket, and two older men. All three wear name-tags. The man to far right tentatively identified as Dr. J.J. Spurlock (North Texas State Teachers College 1935), professor of Chemistry 1940-1976, and Vice President 1959-1971. Probably taken between 1955 and 1968.
Date: 19XX
Partner: UNT Libraries Special Collections

[Alumni Awards Luncheon, April 26, 1975]

Description: Photograph from the Alumni Awards Luncheon, Saturday April 26, 1975 at the Denton Country Club. Seen are (left) Dr. Henry Kamp of the Department of Political Science, and (right) Dr. William Glaze, of the Department of Chemistry, Associate Dean of the College of Arts & Sciences, and Director of Institute of Environmental Studies, each of whom were awarded a Distinguished Teaching Award by the Alumni Association.
Date: April 26, 1975
Partner: UNT Libraries Special Collections

[Alumni Awards Luncheon, April 26, 1975]

Description: Photograph from the Alumni Awards Luncheon, Saturday April 26, 1975 at the Denton Country Club. Dr. William Glaze (standing, right), of the Department of Chemistry, Associate Dean of the College of Arts & Sciences, and Director of Institute of Environmental Studies, is seen receiving the Distinguished Teaching Award by the Alumni Association from Tom Harpool (North Texas State Teachers College 1939), President of the North Texas State University Alumni Association. Seated at far left is Edwin… more
Date: April 26, 1975
Partner: UNT Libraries Special Collections
open access

Anodic Precipitation of Tracer Manganese as Dioxide

Description: Quantitative recovery of carrier‐free 10−9 M manganese (II) is possible from weakly acidic solutions. The use of lead dioxide as either a non-isotopic carrier or a chemical displacing agent makes possible high recoveries from more acidic solutions.
Date: 1959
Creator: Heintz, Edward A. & Rogers, Lockhart Burgess, 1917-1992
Partner: UNT Libraries Government Documents Department
open access

Photometric Titration of Weak Bases in Nonaqueous Media

Description: The photometric titration technique is used for the determination of weak bases using perchloric acid in acetic acid as titrant and acetic acid or acetonitrile as solvent. Differentiating titration of as many as four components in a single mixture is shown to be possible. Comparison with potentiometric titrations in the same media shows the photometric technique to be preferable in many instances where the bases to be differentiated are very similar in strength. The versatility of the photometr… more
Date: 1959
Creator: Hummelstedt, L. E. I.
Partner: UNT Libraries Government Documents Department
open access

A New Method for Preparing Hydroxide-Free Alkali Chloride Melts

Description: Molten salts have been used extensively as solvents for electrochemical processes. The difficulty of removing the last traces of residual moisture from the salts has often necessitated rather arduous drying procedures. If the moisture is not removed, hydrolysis occurs upon fusion. The hydroxide ion thus produced precipitates metal ions, attacks glass, and is reduced more easily than the alkali metals, thus diminishing the usable potential range of the solvent. It was found that if rigorously dr… more
Date: 1959
Creator: Maricle, Donald L & Hume, David N
Partner: UNT Libraries Government Documents Department

[UNT Foundation Eminent Faculty Award Angela K. Wilson]

Description: Photograph of Angela K. Wilson, Regents Professor in the Department of Chemistry, at the UNT 2015 Faculty Excellence Awards. Wilson is holding a large check that reads UNT Foundation Eminent Faculty Award Winner, $15,000.00 UNT Foundation". Other unidentified faculty award guests stand on either side posing for photographs.
Date: October 2, 2015
Creator: Clark, Junebug
Partner: UNT Libraries Special Collections
open access

On Certain Phase Equilibria in the Ternary System Uranyl Nitrate--Ether--Water at 25° and at 1°C

Description: This report follows a study that deals with a portion of the ternary diagram previously analyzed, namely the boundary curves which separate the central area of two coexistent liquid phases from the two border stripe representing one-phase liquid systems.
Date: October 22, 1942
Creator: Van Name, Ralph Gibbs
Partner: UNT Libraries Government Documents Department
open access

Beta Gage for Localized Measurements on Thin Films

Description: A gage employing a narrow "pencil" of beta-rays has been developed to determine the thickness of films used a cyclotron targets. The instrument, pictured in Figure 1, allows an estimate of the evenness of films a few mg/cm thick by reproducibly scanning the sample with a collimated beta-ray beam 3/32 in. in diameter.
Date: 1955
Creator: Anders, Oswald U. (Oswald Ulrich) & Meinke, W. Wayne
Partner: UNT Libraries Government Documents Department
open access

A Method for the Determination of Traces of Metals III : Studies of the Distillation of Amalgams

Description: Summary: "It has been demonstrated that the electrolysis-distillation stages of the procedure that has been developed for traces of metals may be utilized, with certain precautions, to recover milligram quantities of cadmium, cobalt, copper, iron, nickel and zinc. Lead remains partially as undissolved lead sulfate and hence the recovery of amounts ranging from 1 - 5 mg. is not advisable by this procedure."
Date: October 1947
Creator: Bricker, Clark E.; Furman, N. Howell & McDuffie, Bruce
Partner: UNT Libraries Government Documents Department
open access

Decay Scheme of In107

Description: The gamma radiations of In107 have been investigated with a scintillation spectrometer . The In107 was produced in a cyclotron by a (d,n) reaction on electromagnetically enriched Cd106. Beta-gamma and y-y coincidence experiments showed in addition to the annihilation radiation, only one y ray of 0.22 Mev associated with the 2.2 Mev positron.
Date: 1955
Creator: Cassatt, Wayne A., 1925- & Meinke, W. Wayne
Partner: UNT Libraries Government Documents Department
open access

The Mass Spectrum of Methane and the Energy Levels of the Fragment Ions and Radicals

Description: A MO calculation of the electronic states of CH4, CH3, CH2, CH, and their respective ions provided the basis for the application of correlation rules to an analysis of the existing appearance potential data for methane. An interpretation of the methane mass spectrum has been proposed which is based on the high value of the heat of sublimation of carbon. It is shown that the excited electronic states of the molecule- and radical-ions are prominent in the decomposition reactions.
Date: July 1955
Creator: Krauss, Morris; Wahrhaftig, Austin L. & Eyring, Henry, 1901-1981
Partner: UNT Libraries Government Documents Department
open access

Groundwater Prospecting for Sandstone-Type Uranium Deposits: The Merits of Mineral-Solution Equilibria Versus Single Element Tracer Methods

Description: A report discussing groundwaters from aquifers in two different sandstone-type uranium mining districts in Texas and Wyoming that were collected and chemically analyzed.
Date: February 1981
Creator: Chatham, James R.; Wanty, Richard B. & Langmuir, Donald
Partner: UNT Libraries Government Documents Department
open access

A Method for the Determination of Traces of Metals: [Part] 4. Polarographic Studies.

Description: Report describing an updated method to determine traces of metals under polarographic studies, which operates at a higher cathode current density with a small area of the anode immersed in the solution where an appreciable quantity of iron was present in the solutions that were to be polarographed. The results of these studies are also presented.
Date: November 1947
Creator: Bricker, Clark E.; Furman, N. Howell & McDuffie, Bruce
Partner: UNT Libraries Government Documents Department
open access

Reference Electrodes

Description: "The problems discussed are those encountered in assigning unequivocal emf values to electrode systems. Three electrodes which meet the requirements for reference electrodes most adequately are considered in some detail: these are the hydrogen, silver-silver chloride, and mercury-mercurous chloride (calomel) electrodes. An assessment is presented for electrode systems for aqueous solutions, organic solvents, fused slats and biological systems."
Date: December 1962
Creator: Janz, George J. & Kelly, Frank J.
Partner: UNT Libraries Government Documents Department
open access

The Electronic Energy Levels and the Mass Spectrum of Methane

Description: Recent instrumental developments and theoretical speculation have indicated a need for more information concerning the excited electronic states of polyatomic molecules and ions in the elucidation of mass spectra. A theoretical description of these states is necessary for the proper interpretation of existing data and in laying a firm basis for the planning of future experiments. For the above reasons the energies of a number of the excited electronic states of methane have been calculated in a… more
Date: July 1954
Creator: Krauss, Morris; Wahrhaftig, Austin L. & Eyring, Henry, 1901-1981
Partner: UNT Libraries Government Documents Department
open access

Thorium Isotopes Method for Dating Marine Sediments

Description: This thesis is concerned with a possible method of improving the well-known ionium method of age determination of deep-sea sediment sections (Pet-53, Zou-58, Kul-55, Ran-54) both with respect to accuracy of individual determinations and with respect to the range of applicability of the method.
Date: unknown
Creator: Almodóvar, Ismael
Partner: UNT Libraries Government Documents Department
open access

A Systematic Study of (p,xp) Reactions in the 100-400 MEV Region

Description: (p,xp) reactions are those nuclear reactions induced by high energy protons in which both the mans and the charge of the target nucleus are reduced by x-1 units. The most common type of these reactions to be expected in the 100 to 400 Mev region involves the exclusive emission of protons as a results of the interactions. The specific (p,xp) reactions investigated in this study were those where 2 is less than or equal to x where x is less than or equal to 5.
Date: June 2, 1961
Creator: Morrison, David Lee
Partner: UNT Libraries Government Documents Department
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