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The Adsorption and Surface Reactions of Hydrocarbons on Clean Iridium (open access)

The Adsorption and Surface Reactions of Hydrocarbons on Clean Iridium

From abstract: "The adsorption of ethane, ethylene and acetylene on clean iridium in a field emission microscope has been found to cause characteristic changes in the work function of the iridium surface. Further changes, which are time and temperature dependent, result when such surfaces are heated. Flash filament experiments have shown that the changes in work function upon heating are due to desorption reactions and that the desorbed product consists principally of hydrogen. By assuming a linear relationship between surface coverage and work function, it has been possible to determine the desorption kinetics from the observed rates of work function change at various temperatures. The results are consistent with a mechanism involving stepwise surface dehydrogenation in which a pair of hydrogen atoms is removed from the hydrocarbon molecule in each step, followed by desoption of the adsorbed hydrogen. At very high temperatures the remaining carbon atoms are removed, presumably by evaporation."
Date: April 7, 1962
Creator: Arthur, John R., Jr. & Hansen, Robert S.
Object Type: Report
System: The UNT Digital Library
Dissolution and Recovery of Uranium from Phosphate Rock and Shale by Chemical Methods (open access)

Dissolution and Recovery of Uranium from Phosphate Rock and Shale by Chemical Methods

The following report briefly covers broad general features of the chemical studies to be used by the Atomic Energy Commission in considering future work on the chemical studies of phosphate rock and shale.
Date: April 7, 1947
Creator: Sullivan, John D.
Object Type: Report
System: The UNT Digital Library
The Heat of Formation of Thorium Sesquisulfide (open access)

The Heat of Formation of Thorium Sesquisulfide

Abstract: "The heat of solution of thorium sesquisulfide was determined in 6.000 molar HCl at 25 C to ascertain the stability of the thorium (III) halides. The molal heat of formation of Th2S3 from rhombic sulfur and crystalline thorium is calculated as 258.6 kcal."
Date: April 7, 1953
Creator: Eyring, LeRoy & Westrum, Edgar F., Jr.
Object Type: Report
System: The UNT Digital Library
Hypothesis Concerning Irradiation Embrittlement of Uranium (open access)

Hypothesis Concerning Irradiation Embrittlement of Uranium

In discussion with a number of people at HAPO, KAPL and ANL a hypothesis has been evolved which appears to fit available information concerning irradiation embrittlement of uranium as well as indicate a possible solution to the problem. The purpose of this memorandum is to expound the hypothesis as an aid to those working with the problem. Since it imbodies the ideas of many people, no claim to unique authorship is implied.
Date: April 7, 1955
Creator: Wood, E. C.
Object Type: Report
System: The UNT Digital Library
Multigroup Analysis on the IBM 604 (open access)

Multigroup Analysis on the IBM 604

This is a preliminary report on a multigroup's analysis on the IBM 604, a programmable Electronic Calculating Punch, as part of the course work W31-Eng. 52.
Date: April 7, 1953
Creator: Stark, R. H.; Hibbert, C. & Ryan, D. Z.
Object Type: Report
System: The UNT Digital Library
Spectral Lines of Curium from 3100 A to 4200 A (open access)

Spectral Lines of Curium from 3100 A to 4200 A

Abstract: Fifty-four spectral lines of curium are listed together with estimated intensities. A brief description of the manner of taking the spectra and of measuring the lines are given.
Date: April 7, 1948
Creator: Conway, John G. & Moore, Milton F.
Object Type: Report
System: The UNT Digital Library
Thermodynamics of the Aqueous Ions of Americium (open access)

Thermodynamics of the Aqueous Ions of Americium

Thesis discussing the heats of reduction, oxidation potentials, and measurements of autoreduction and disproportionation for aqueous ions of americium.
Date: April 7, 1954
Creator: Gunn, Stuart Richard
Object Type: Thesis or Dissertation
System: The UNT Digital Library