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The Production of Fluorocarbons by the Reaction of Fluorine With Silicone Carbide
This technical report details the production of fluorocarbon by reactions between fluorine and silicon carbide. The report contains two figures depicting aspects of the process.
Date:
December 1941
Creator:
Priest, Homer F. & Grosse, A. V.
System:
The UNT Digital Library
Effect of Temperature on the Surface of Cast Uranium Metal
Technical report. Photomicrographs showing the effect of heating polished uranium surface at 600, 700, 850, and 1000 degrees C, and sandblasted and cut surface at 1000 degrees C are included.
Date:
December 3, 1942
Creator:
Johns, I. B; Newton, A. S. & Gladrow, E. M.
System:
The UNT Digital Library
Radiation Problems of the Chemical Plant
"Absorption measurements have been made in a large body of water to evaluate the contribution to the radiation intensity produced by the degradation of radiation without absorption. Radiation intensities three times those expected from a simple exponential absorption were found. Scattering from the air of gamma radiation has been measured and has been found to agree satisfactorily with theoretical predictions. The penetration of radiation through curved pipes in shielding has been measured and been found to be a flat topped function. A 2" pipe bent in the arc of a circle of 7' chord and a 10' radius gives a reduction intensity over the intensity in air at the same distance of 2.5X10⁴."
Date:
December 12, 1942
Creator:
Borst, Lyle B. & Wollan, Ernest Omar
System:
The UNT Digital Library
Experimentation on the Extraction of Uranium from Western Ores by Leaching with Sodium Carbonate and Sodium Bicarbonate
Purpose: "The purpose of the following experiments was to obtain data on the selective extraction of uranium over vanadiur from samples of vanadium ores by leaching with sodium carbonate or sodium bicarbonate solutions, with the object of establishing the time, temperature, and concentration conditions necessary for satisfactory extractions."
Date:
December 3, 1943
Creator:
Saunders, E. R. & Carosella, M. C.
System:
The UNT Digital Library
Physical Properties of Uranyl Sulfate Solutions
Abstract: Measurements are reported of the solubility of uranyl sulfate in water at several temperatures, of the density of uranyl sulfate solutions as a function of concentration, of the variation of density of uranyl sulfate solutions of three different concentrations over a temperature range from 0[degree]C. to about 93[degree]C., and of the pH of uranyl sulfate solutions as a function of concentration as well as of temperature. The pH measurements were taken on uranyl sulfate samples prepared in several different ways and some conclusions are drawn as to the purity of theses samples.
Date:
December 15, 1943
Creator:
Helmholz, Lindsay. & Friedlander, G.
System:
The UNT Digital Library
Metallurgical Laboratory, Chemical Research - Analytical, Graphite Purity Research Program
Abstract. Chemical analytical studies of graphite raw materials have revealed new sources of petroleum cokes and pitches of greater purity than those previously used in the manufacture of project graphite. The use of these raw materials of exceptional purity has resulted in an improvement in k of the order of one per cent as compared with the AGOT-AGNT graphite typical of the previous production. A study of the graphitizing process has shown that no dangerous impurities are introduced in the graphite in manufacture; rather, the process actually purifies. furthermore, impurities are distributed homogeneously within the furnace charge; thus the AGOT-AGNT distinction is no longer necessary. A comparison of the methods of graphite testing has demonstrated excellent correlations between chemical analytical data, the results of the function test at Argonne, and the sigma pile experiments. It may therefore be inferred that chemical testing should be an adequate control of the graphite purity. Methods are described for the analysis of ash, B, V, TI, FE, and Ca in petroleum coke, pitch, and graphite.
Date:
December 22, 1943
Creator:
Boyd, G. E.; Curtis, R. E. & Johnston, W. H.
System:
The UNT Digital Library
Experimentation on the Extraction of Uranium from Western Ores
The following report supplements a previous report by E.R. Saunders and M. C. Carosella and a report by A. J. Gailey and E. O. Brimm based around the same subject. This report describes a number of tests in which leaching temperatures of 115 and 125 C were tried for the extractions of uranium from western ores.
Date:
December 27, 1943
Creator:
Saunders, E. R. & Carosella, M. C.
System:
The UNT Digital Library
The Leakage of Neutrons from a Heterogeneous Pile
Abstract: "The leakage of neutrons from a heterogenous pile with finite aides is calculated developing the method used in CP-992. The change in the fraction of neutrons absorbed by the moderator is obtained using the results of the calculation of the leakage."
Date:
December 27, 1943
Creator:
Plass, Gilbert N.
System:
The UNT Digital Library
Melting Point -- Composition Diagrams in the U-UBr3 System
Abstract. A portion of the liquid-solid phase equilibrium region of the system U-UBr3 has been investigated by the method of thermal analysis. Uranium tribromide was prepared by introducing bromine vapor into a bulb containing finely divided uranium formed from the hydride. Cooling curves were obtained with tribromide and then with various compositions of tribromide and uranium. the information obtained showed that no solid sub halide exists but that the metal was soluble in the halide.
Date:
December 20, 1944
Creator:
Thurmond, Carl
System:
The UNT Digital Library
Biological Action of Gamma and X-Rays
Report of experimentation on mice of exposure to daily doses of gamma radiation at two rates and the resultant damage.
Date:
December 22, 1944
Creator:
Lorenz, E.; Eschenbrenner, A.; Derringer, M. & Heston, W. E.
System:
The UNT Digital Library
Separation of Tuballoy From Metallic Tantalum
Report discussing a method of removing tuballoy (uranium) from metallic tantalum, which involves a double precipitation of tuballoy tetrafluoride obtained by reduction with stannous chloride.
Date:
December 28, 1944
Creator:
Wagner, E. L.; Gilpatrick, L. O. & Raeuchle, R. F.
System:
The UNT Digital Library
Report on Lightner Creek District, San Juan Basin Area, Colorado
A report regarding the Lightner Creek District in the San Juan Basin Area, Colorado.
Date:
December 1945
Creator:
Keith, Stanton B.
System:
The UNT Digital Library
Reclamation of Contaminated Diffusion Pump Oil and Removal of Tuballoy Therefrom
Abstract: The possibilities for the removal of tuballoy from diffusion pump oil and reclamation of the oils for reuse are discussed. The report includes specifications of practical equipment, operating instructions, photographs and diagrams of the necessary construction details.
Date:
December 6, 1945
Creator:
Lee, J. E. Jr. & Susano, C. D.
System:
The UNT Digital Library
Analysis of TH( NO3 ) -Ca( NO3 )2 –HNO3 Solutions
Abstract. Methods of analysis for thorium, calcium, and nitric acid in solutions from thorium extraction purification columns are described and the results and errors are outlined. A brief description of methods of analysis that were not successful is included.
Date:
December 20, 1945
Creator:
Warf, James C.; Patterson, J. H. & Banks, Charles V.
System:
The UNT Digital Library
TO₃ Reduction and Chlorination in the Experimental Glass Fluidizer
Abstract: "Temperatures above 400 C are required before reduction will take place with AH3. Above 500 C, a pyrophoric product was obtained. The chlorination temperature should be about 350 C initially and above 450 C at the end of the reaction to achieve 99% chlorination."
Date:
December 20, 1945
Creator:
Lowrie, Robert Sydney & Hubbard, J. V.
System:
The UNT Digital Library
The Chlorination of TO₃
Abstract: The applicability of specific mixtures and organic chlorocarbons in general toward the chlorination of TO₃ has been tested by means of reactions is sealed glass tubes. The results show that thionyl chloride mixed with tetrachloroethylene or a bromothane of the tyoe CHBrC12 will produce TCI4 directly. This same result is produced by CBr2C12 alone.
Date:
December 28, 1945
Creator:
Gavlin, Gilbert; Hubbard, J. V. & Clewett, G. H.
System:
The UNT Digital Library
The Ammonia Reduction and its Application to the Preparation of Green Salt
From introduction: The present report is a summary of the experimental work on a laboratory scale to date involving the ammonia reduction and the one step TF4 processes.
Date:
December 29, 1945
Creator:
Clinton Engineer Works
System:
The UNT Digital Library
Effect of X-rays on Tissue Metabolism
From introduction: "This paper presents data on the effect of x rays on tissue metabolism."
Date:
December 2, 1946
Creator:
Barron, E. S. Guzman
System:
The UNT Digital Library
Theoretical Consideration of the Geometrical Structure of the Uranium Halides
Abstract: The geometrical structure of the uranium halides has been studied from a theoretical viewpoint. This theoretical consideration tends to indicate that the pentavalent uranium halides are geometrically but not energetically capable of existence except as double halide compounds of hexavalent and tetravalent uranium.
Date:
December 2, 1946
Creator:
Calkins, Vincent P.
System:
The UNT Digital Library
Spectrophotometric Evidence for the Existence of UCl₅ as the Double Compound UCl₆ and UCl₄
Abstract: "Spectrophotometric evidence for the existence of UCl₅ as a double compound UCl₆ and UCl₄ has been obtained by studying the absorption spectra of these chlorides in CCl₄ and SOCl2 solutions in the visible and ultraviolet regions of the spectrum."
Date:
December 9, 1946
Creator:
Sterett, C. C. & Calkins, V. P.
System:
The UNT Digital Library
Crystal Densities of Uranium Chlorides
Abstract: "Using xylene as the densimetric solvent, the crystal densities have been determined by the pyknometric method for the following chlorides, UCl3, UCl4, UCl6(UCl4), UCl6 and U02Cl2."
Date:
December 13, 1946
Creator:
Sterett, C. C. & Calkins, V. P.
System:
The UNT Digital Library
Fabrication of Ceramic Shapes
Abstract: "This report indicates some of the methods employed at Los Alamos for the fabrication of refractory products."
Date:
December 23, 1946
Creator:
Mullen, Terence & Taub, James M.
System:
The UNT Digital Library
Voltage Regulator for Electroplating Control
This report describes an instrument used for electrolytic separation. It was one of four instruments previous used and improved, yet lacked details until now. The instrument's design and operation is described herein.
Date:
December 23, 1946
Creator:
Rogers, Lockhard Burgess & Pickle, C. B.
System:
The UNT Digital Library
Investigations of Domestic Radioactive Raw Materials, Beryllium, and Other Trace Elements Monthly Report: November 1947
Monthly report of the U.S. Geological Survey's trace element investigations including an outline of field work, laboratory work, and staff activities that have been completed or are in process.
Date:
1947-12~
Creator:
Geological Survey (U.S.). Trace Elements Office.
System:
The UNT Digital Library