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Preparation and Stability of Cobalt Trifluoride

Description: Report discussing the preparation, stability, and recommended storage of cobalt trifluoride. "Cobalt trifluoride prepared by the action of fluorine upon anhydrous cobalt dichloride remains stable when kept in sealed glass tubes but on exposure to air it absorbs water and its use in the conversion of T3O8 to TF6 cannot be relied upon..."
Date: October 15, 1945
Creator: Whitney, J.; Smith, Fred & Miller, A. J.
Partner: UNT Libraries Government Documents Department

Preparation of UCl₄ With Hexachloropropylene and Other Chlorinated Organic Compounds

Description: Abstract: "A summary of the information contained in several reports relative to the use of hexachloropropylene for the preparation of UCl4. Data relative to the performance of charge material so prepared and to pilot plants are omitted."
Date: April 29, 1946
Creator: Miller, A. J. & Dean, L. B., Jr.
Partner: UNT Libraries Government Documents Department

Present Status of Polonium Tolerance Estimations

Description: From abstract: "This report contains a summary of biological information on distribution, excretion, and toxicity of polonium; a comparison of results obtained when maximum permissible exposure rates for man are calculated from available data by different methods; and a critical evaluation of the present status of Po tolerance estimates."
Date: October 14, 1948
Creator: Hursh, John B. & Stannard, J. Newell
Partner: UNT Libraries Government Documents Department

The Preservation of Fluorescence Standards

Description: Report discussing the practice of using methyl methacrylate as a coating for platinium dishes in fluorescence method of uranium analysis. The experimental procedure described in this report to evaluate this practice indicates that the sample would be sufficiently protected from contamination and would not need to be stored in a desiccator.
Date: February 15, 1946
Creator: Grotta, H. M.
Partner: UNT Libraries Government Documents Department

The Reaction of Ferric Chloride With Uranium Tetrachloride

Description: Abstract: Solid ferric chloride reacts with solid uranium tetrachloride to form a complex iron-uranium chloride compound at approximately 263°C. The vapor pressure of this compound is nearer to that of uranium tetrachloride than to the vapor pressure of ferric chloride.
Date: January 20, 1947
Creator: Haines, B. M. & Calkins, V. P.
Partner: UNT Libraries Government Documents Department

The Reaction of Hexachloropropylene With Metallic Oxides

Description: Abstract: Twenty-two metallic oxides were refluxed with hexachloropropylene. The anhydrous chlorides or other products formed are described for each oxide. The reactions were particularly vigorous with higher valent oxides of the fifth and sixth group elements.
Date: January 14, 1946
Creator: Pitt, B. M.; Wagner, E. L. & Miller, A. J.
Partner: UNT Libraries Government Documents Department

Recovery of Tuballoy From Solutions Containing Fluoride Ion

Description: "Another extraction method is described herein for the quantitative recovery of tuballoy from solutions containing high concentrations of fluoride ion. The method consists of the addition of aluminum nitrate to the solution in order to complex the fluoride ion, followed by saturation with calcium nitrate and extraction of the tuballoy with dibutyl carbitol.
Date: February 27, 1945
Creator: Smith, Fred; Tober, Frank W.; Lord, E. J.; Andrews, L. J. & Gates, J. W., Jr.
Partner: UNT Libraries Government Documents Department

Recovery of Tuballoy (Uranium) From Tantalum

Description: Report discussing methods for the "separation of tantalum and tuballoy from used tantalum K's. These methods are: hydrofluorination, fluorination, hydrochlorination and dissolution in hydrofluoric acid -- nitric acid, hydrofluoric acid -- hydrochloric acid mixture, and hydrofluoric acid alone."
Date: September 29, 1945
Creator: Johnston, C. P. & Milch, A.
Partner: UNT Libraries Government Documents Department

Recovery of Uranium From Beta Salvage Residues by Vapor Phase Chlorination With CCl₄

Description: Abstract: A simple process to recover the bulk of the uranium from ignited beta salvage residues was sought. In preliminary experiments a vapor phase chlorination with CCl₄ for about four hours followed by water and nitric acid leaching was found adequate. Recoveries are estimated at 60 to 90% of the total uranium content.
Date: April 22, 1946
Creator: Veatch, R. W., Jr. & Miller, A. J.
Partner: UNT Libraries Government Documents Department

The Reduction of Uranium Trioxide by Ethyl Alcohol

Description: Abstract: The effect of temperature upon the rate of reduction of uranium trioxide by ethyl alcohol has been investigated, and a comparison of the reactivity of the dioxide produced at various temperatures has been made. The percent of carbon in the end product has been studied with respect to both temperature of reduction and length of exposure to alcohol. Optimum conditions for the reduction have been suggested.
Date: November 18, 1946
Creator: Haines, B. M. & Calkins, V. P.
Partner: UNT Libraries Government Documents Department

Separation of Iron and Tuballoy With Phthallic Acid

Description: Introduction: This report embodies the results of an investigation as to the possibility of removing the bulk of the iron from gunk solutions of various concentrations by precipitation of the iron with phthallic acid and subsequent precipitation of tuballoy. The method consists of dissolving the phthallic acid in the gunk solution and then adding NH₃ to a suitable pH, precipitating the iron, and leaving the tuballoy in solution.
Date: January 17, 1945
Creator: Hoffman, R. E.; Armstrong, G. M.; Miller, A. J. & Gates, J. W., Jr.
Partner: UNT Libraries Government Documents Department

Separation of Tuballoy From Tantalum by Chlorination Distillation Process

Description: Abstract: Tuballoy can be effectively separated from tantalum filaments by chlorination of the filaments and subsequent distillation and condensation of tantalum chloride. Apparatus for chlorination of filaments and distillation separation in one unit is under consideration. Chemical methods of separation of tuballoy from distillation residues are being tested.
Date: February 6, 1946
Creator: Adams, R. H.; Rogers, J. A.; Wagner, E. L. & Miller, A. J.
Partner: UNT Libraries Government Documents Department

A Solubility Method of the Determination of Non-Volatile Material in Tetrachloride Charges

Description: Abstract: "This report suggests using methyl acetate extraction of charge material as a means of determining the non-volatile residue. It is shown that the volatile constituents of charge material are all extremely soluble in methyl acetate whereas the non-volatile materials are quite insoluble. Percent NVH on several samples of charge material by this method are reported and discussed."
Date: April 26, 1945
Creator: Sterett, Charles & Van Wazer, John R.
Partner: UNT Libraries Government Documents Department

Stabilizer for Temperature Control Equipment

Description: From abstract: "A simple electronic circuit is described, the use of which greatly improves the temperature regulations obtainable with Beta equipment. The circuit utilizes the time derivative of the temperature to counteract oscillation and overshoot. No other changes are required in existing equipment for installation of the stabilizer."
Date: May 14, 1945
Creator: Macleish, K. G. & Palmer, R. C.
Partner: UNT Libraries Government Documents Department

Studies of Porphyrin Metabolism, 3. The Relation of Erythropoiesis to the Excretion of Coproporphyrin by Dogs and Rabbits, and to the Concentration of Coproporphyrin and Protoporphyrin in Rabbit Erythrocytes

Description: Report discussing studies regarding porphyrin excretion and hemoglobin metabolism in animals with phenylhydrazine anemia, and studies regarding the coproporphyrin and protoporphyrin in the red blood cells of rabbits.
Date: November 25, 1945
Creator: Schwartz, Samuel; Glickman, Marcia; Hunter, Rosie & Wallace, Jean
Partner: UNT Libraries Government Documents Department

Studies on Cell Division, 1. Alpha Radiation as a Division Inhibiting Agent

Description: Report discussing a study aimed at learning about cell division and the effects of radiation alpha radiation on the process of cell division. This was done by correlating changes in the biochemical state of cells and the inhibition of cell division. Materials and methods are included as well as experimental results and data.
Date: unknown
Creator: Spoerl, Edward S. & Balske, R. J.
Partner: UNT Libraries Government Documents Department

Studies on the Electrolytic Reduction of Nitric Acid

Description: Report discussing the reduction of nitric acid that results from its use at the cathode for the electrolysis of uranyl nitrate. From introduction: "It is the purpose of this report to give the results of studies on the reduction of nitric acid of different concentrations, at different types of electrodes, and for various current densities in order to ascertain the effects of such changes."
Date: unknown
Creator: Hamer, Walter J.
Partner: UNT Libraries Government Documents Department

Tantalum-Rich Alloys of Tuballoy

Description: Report discussing "methods for the manufacture of refractory crucibles for use in high temperature work in general." Additionally, "preliminary experiments with the induction furnace to test the action of tantalum on tantalum carbide at 2900°C are described."
Date: January 15, 1946
Creator: Sausville, J. W. & Larson, C. E.
Partner: UNT Libraries Government Documents Department