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The Radiation Chemistry of Nitrite Ion in Aqueous Solution

Description: When deaerated solutions of KNO2 at their natural pH are irradiated with γ- or x-rays, the main initial reaction is a formation of hydrogen and hydrogen peroxide. As peroxide builds up, a radiation-induced reaction between nitrite and peroxide sets in, which results in the formation of nitrate. This reaction is slower the higher the nitrite concentration. The kinetics of the nitrite-peroxide reaction were studied in detail by the irradiation of synthetic mixtures, and the results were satisfact… more
Date: unknown
Creator: Schwars, Harold A. & Allen, Augustine O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemistry of Anhydrous Systems Containing Hydrogen Fluoride and Nitrogen Oxides

Description: Nitrosyl and fluoride ions are formed in liquid anhydrous hydrogen fluoride when nitric oxide, nitrogen sesquioxide, nitrogen tetroxide, or nitrosyl fluoride, are dissolved. Vapor infrared analysis was used to study the solution composition and gaseous reaction products. These solutions react with metallic uranium, plutonium, zirconium, iron, and aluminum, as well as ceramic uranium oxide and uranium carbide, forming soluble nitrosyl metal fluoride complexes and liberating nitric oxide. The ura… more
Date: 1961
Creator: Horn, Frederick, L.; Bartlett, Charles, B. & Tivers, Richard, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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On the Synergistic Effect in Solvent Extraction

Description: The studies of Irving and Edgington, and Healy on the synergistic effects of tributyl phosphate (TBP) and tri-n-octylphosphine oxide (TOPO) on the solvent extraction of thorium and other metals by thenoyltrifluoroacetone (TTA) are discussed. It is shown that the synergistic effect is a result of addition reactions as well as replacement reactions and is not a function of the metal being extracted. A compilation of equilibrium constants describing the synergistic effect of TBP and TOPO on TTA … more
Date: June 1962
Creator: Newman, Leonard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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On the Crystal Chemistry of Salt Hydrates, II. A Neutron Diffraction Study of MgSO4·4H2O

Description: The crystal structure of MgSO4·4H2O has been refined using single crystal neutron diffraction data for the three main zones. The hydrogen positions which were found are essentially those which have been deduced from X-ray data in an earlier investigation.The mean value of the O-H bond lengths is 0.97Å. The O-H-O bonds are bent considerably. One hydrogen atom does not participate in hydrogen bonding, as can be concluded from the geometry of its surroundings and its thermal motion.
Date: October 15, 1963
Creator: Baur, Werner H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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On the Crystal Chemistry of Salt Hydrates, III. The Determination of the Crystal Structure of FeSO4·7H2O (Melanterite)*

Description: Monoclinic FeSO4·7H2O is the stable solid phase between -1.82° and 56.6° C in contact with a saturated water solution of FeSO4. It occurs in nature as an oxidation product of Fe-containing sulfides an is called melanterite. FeSO4·7H2O belongs to a series of compounds Me2+SO4·nH2O, where Mn2+ is a cation with an approximate ionic radius of 0.7Å. The 1-, 4- and 5-hydrates are known to crystalize each in only one form, whereas the hexa- and the heptahydrates occur both in two different forms. The … more
Date: October 15, 1963
Creator: Baur, Werner H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Brookhaven Chemonuclear in-Pile Test Loop

Description: Technical report outlining the plan to develop the Brookhaven chemonuclear in-pile test loop because the interest in utilizing reactor radiation energy (fission-fragment recoil and neutron-gamma) for production of chemicals has developed to the point where a loop to study chemonuclear system in a reactor under dynamic conditions is necessary.
Date: April 23, 1962
Creator: Tucker, Walter D.; Waide, C.; Bezler, P. & Steinberg, Meyer, 1924-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Free Radicals Formed on u.V. Irradiation of o-Nitrobenzaldehyde

Description: This technical report describes the chemistry process of photolysis which was carried out within a Varian 4500 EPR spectrometer. Through this process, it was found that free radicals form both in a powder and in solutions of o-nitrobenzaldehyde. It was found that the formation of free radicals on irradiation of substituted nitrobenzenes was specific for compounds which undergo the photoinduced rearrangement to nitrosocompounds. The report then details the process undertaken to identify the free… more
Date: 1962
Creator: Coppens, P. & Tench, A. J., 1935-1983
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Vapor Pressures of Isotopic Molecules

Description: It is apparent that major progress has been made both in the experimental and theoretical study of the vapor pressures of isotopic molecules in the last five years. Vapor pressure measurements are being made in different laboratories by different methods which agree with one another within a few hundredths of one percent. The theory has advanced to the point where a large body o experimental data can be systematized and understood. Quantitative calculations have been carried out which verify th… more
Date: 1962
Creator: Bigeleisen, Jacob
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Molecular Geometry and the Vapor Pressures of Isotopic Ethylenes: Chemical and Structural Isomers

Description: The theory of isotope effects on vapor pressures for systems with large quantum effects, as manifested by the cross-over phenomenon and deviation from the rule of the mean, is illustrated by the large body of experimental data on the isotopic ethylenes which has recently become available. An effect of molecular geometry was found, viz. a difference in vapor pressures of cis-, trans- . and gemdideuteroethylenes. This was shown to be related to the hindered rotation about the C=C axis in the liqu… more
Date: 1963
Creator: Bigeleisen, Jacob; Ribanikar, Siobodan V.; Stern, Marvin J. & van Hook, W. Alexander
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiogaschromatographie ¹⁴C- und ¹¹C-markierter aliphatischer Kohlenwasserstoffe und Amine

Description: Several sources of error often involved in radio-gas chromatography are delineated and proposals for improved techniques are made. Remarkable changes of flow rate (and hence efficiency changes of a continuous flow counter), which occur after the injection of large gas samples, have been studied as functions of the variables involved. A new flow meter is described, which allows a continuous recording of the flow rate, independent of the viscosity of the gas. When a mass peak emerges from a gas c… more
Date: 1962
Creator: Stöcklin, G.; Cacace, F. & Wolf, A. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiation Damage in Solid Tetramethyl Ammonium Halides. Free Radicals Stable at Low Temperature

Description: Electron spin resonance (ESR) spectral studies were carried out on tetramethyl ammonium halides which were irradiated at 298 and 77 deg K. The ESR spectra of the iodide and bromide irradiated at 298 deg K consisted of a single line of width 30 to 40 gauss, while that of the chloride gave a weak complex pattern. When the irradiations and ESR studies were performed at 77 deg K, considerable fine structure was observed which was centered about g = 2.003 plus or minus 0.001. The iodide spectrum at … more
Date: 1962
Creator: Tench, A. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Phase Dependence of Carbon-11 Recoil Products in Propane: Evidence for Methylene Insertion

Description: Results are included of a study of the formation of methylene-C complexes in neutron-irradiated propane in the gas, liquid, and solid phases. It is considered that the results support the view that discrete species, such as carbon atoms, methyne, and methylene, react at thermal or near thermal energies in the gas phase accounting for a major fraction of the products. Products which contain Carbon-11 produced in the neutron reactions with propane are tabulated.
Date: 1962
Creator: Stöcklin, Gerhard & Wolf, Alfred P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hot-Atom Chemistry of the Solid StateL its History, Current Status and Future Prospects viewed in Relation to the Planning of Chemical Research Programs for New Scientific Establishments Centered about a Research Reactor

Description: The History, Current Significance and Status of the Field Hot atom chemistry, like many other fields of scientific research, can trace its origin to a single experiment, that of Szilard and Chalmers, performed in 1934. This is true even though recoil effects had been known and used for a long time. Almost immediately Szilard and Chalmers put their discovery to practical use: they employed the recoil effect in ethyl iodide as a neutron detector and observed the γ,n reaction in beryllium. The ing… more
Date: March 8, 1963
Creator: Harbottle, Garman
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Intentional Use of Antimony and Manganese in Ancient Glasses

Description: Title and Abstract in English, French and German, while paper is in English. The use of manganese as a colorant in ancient glasses has long been recognized and the recent X-ray diffraction measurements of Turner and Rooksby have established that compounds of antimony were used extensively as opacifiers in such glasses. The analysis at Brookhaven National Laboratory of some three hundred ancient western glasses of the second millennium B.C. through the first millennium A.D., of which more than t… more
Date: 1962
Creator: Sayre, Edward V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Influence of Low Concentrations of Crystal Defects on Thermal Annealing of Recoil Br82 in Hexabromoethane

Description: When the nucleus of an atom in a crystalline solid undergoes radiative neutron capture there is disruption of the crystal in the vicinity of the event due to energetic processes accompanying the nuclear transformation. This local disruption has been termed a "hot-zone" or "displacement spike". The chemical state of a transformed recoil atom immediately following transformation is unknown. Within a microsecond the "hot zone" has cooled sufficiently to "freeze" the recoil atom into a stable (or m… more
Date: December 20, 1962
Creator: Collins, Kenneth E. & Harbottle, Garman
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemonuclear Processing

Description: Technical report giving an overview of the use of nuclear energy to produce chemicals including a rough estimate of the economic potential.
Date: February 1962
Creator: Steinberg, Meyer, 1924-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Classified Progress Report of the Reactor Science and Engineering Department for the Year 1949

Description: Technical report covering classified activities of the Department of Reactor Science and Engineering since its inception in January, 1949. This if focused on the research, evaluation, and redesign of the reactor as well as the tests on various reactor components and engineering design to correct structural defects as they have become evident through reactor use.
Date: 1950~
Creator: Brookhaven National Laboratory
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Stereochemistry and the Mechanism of Enzymatic Reactions

Description: The isolation and purification of an enzyme makes it possible to consider the reaction which it catalyzes from the standpoint of organic chemistry, i.e. as a reaction between organic molecules in which the catalyst happens to be a protein. Such a consideration allows the tools of physical organic chemistry to be applied to the the study of the enzyme mechanism, and, since a number of enzymes have been purified, to obtain correlations of what might otherwise appear to be unrelated processes. One… more
Date: unknown
Creator: Koshland, D. E., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Solvent Extraction of Thorium by Thenoyltrifluoroacetone and the Influence of Aqueous Complexation by the Chelating Agent

Description: Technical report investigating the solvent extraction of thorium. The solvent extraction of thorium by the chelating agent, thenoyltrifluoroacetone (TTA), has proved to be a very effective tool for studying the complex ion chemistry of thorium. This study led to the establishment of the existence of aqueous complexation by the chelating agent.
Date: April 23, 1962
Creator: Newman, Leonard & Klotz, Paul.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Progress Report May 16- November 15, 1955

Description: Progress report of the Brookhaven National Laboratory Nuclear Engineering Department providing updates on various projects, experiments, and other work. This report includes a summary of scholarly output from the reactor physics division, the applied chemistry and chemical engineering division, and metallurgy division.
Date: April 8, 1957
Creator: Brookhaven National Laboratory
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Secondary [alpha]-Deuterium Isotope Effect in the Thermal Decomposition of [alpha]-Phenylethylazo-2-Propane

Description: This technical report describes an experiment designed to measure the rates of decomposition of [alpha]-Phenylethyl-[alpha]-d-azo-2-propane(II) and [alpha]-phenylethylazo-2-propane-2-d(III). The report then discusses the results and draws conclusions from the identified isotope effects of the experiment.
Date: 1962
Creator: Seltzer, Stanley
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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