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Acenaphthene solvents for use in Building 313 Frost Test operation

Description: Acenaphtheno is a low-melting organic compound, C{sub 10}H{sub 6}(CH{sub 2}){sub 2}, used as a temperature indicating coating for slugs tested in the Frost Test induction coil. In preparation for this test, slugs are coated by spraying a 12 to 24 per cent by weight solution of acenaphthene in a high vapor pressure solvent on the rotating slug. The solvent evaporate leaving a thin, adherent coating of acenaphthene. This process is completely described in reference 1. To be entirely satisfactory … more
Date: June 26, 1951
Creator: Kratzer, W. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Vapor Pressure and Heat of Vaporization of Bromine Triflouride

Description: The vapor pressure of bromine trifluoride has been measured over the range 39 to 155 C. and the following equation was derived by methods of least squares to represent the experimental data. log{sub 10}P{sub mm} = 7.74853 - l685.8/(t + 220.57). The heat of vaporization was estimated from the following equation which is based upon the Clausius-Clapeyron relation. {Delta}H{sub cal/mole} = 7714 [(t + 273.16)/(t + 220.57)]{sup 2}. In continuation of the program to measure the physical properties of… more
Date: June 8, 1951
Creator: G.D., Grisard J.W. and Oliver
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reduction of Carbon Dioxide inAqueous Solutions by IonizingRadiation

Description: The question of the conditions under which living matter originated on the surface of the earth is still a subject limited largely to speculation. The speculation has a greater chance of approaching the truth insofar as it includes and is based upon the ever wider variety of established scientific fact. One of the purposes of the herein reported observation was to add another fact to the ever increasing information which might have any bearing upon this most interesting question. It is not our … more
Date: March 13, 1951
Creator: Garrison, W. M.; Morrison, D. C.; Hamilton, J. G.; Benson, A. A. & Calvin, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Carbon Dioxide Fixation by Microorganisms

Description: Resting cells of eleven microorganisms were exposed to radioactive carbon dioxide for 40 minutes. The radioactive compounds formed during this time were separated and identified by paper chromatography. Resting cells of Lactobacillus casei fixed no carbon dioxide and growing cells fixed carbon dioxide primarily in malic and aspartic acids. All of the radioactive compounds formed could have become radioactive by reversal of known decarboxylation reactions.
Date: July 24, 1951
Creator: Lynch, Victoria H. & Calvin, Melvin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Path of Carbon in Photosynthesis. XIV.

Description: It seems hardly necessary to repeat to an audience of this kind the importance of the process known as photosynthesis in the interaction and the interdependence of organisms and in the very existence of life as we know it. This process by which green plants are able to capture electromagnetic energy in the form of sunlight and transform it into stored chemical energy in the form of a wide variety of reduced (relative to carbon dioxide) carbon compounds provides the only major source of energy f… more
Date: June 30, 1951
Creator: Calvin, Melvin; Bassham, J. A.; Benson, A. A.; Kawaguchi, S.; Lynch, V. H.; Stepka, W. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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FURTHER RESULTS ON THE PRODUCTION OF NEUTRAL MESONS BY PHOTONS

Description: Further measurements have been made on the photoproduction of neutral mesons using the gamma-gamma coincidence technique. New data have been obtained on the gamma-gamma correlation curves in beryllium. The angular distribution of the photo mesons in Be has been determined and found to be strongly peaked forward. The dependence on the atomic number A of production has been found to obey an A{sup2/3} law. Some data obtained for production in hydrogen show that the pi-zero and pi-plus production c… more
Date: October 1, 1951
Creator: Panofsky, W.K.H.; Steinberger, J. & Steller, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Small Scale Preparation of c14 Labeled Succinic, Malic, Fumaricand Tartaric Acids

Description: The directions for preparing the following acids from labeled acetic acid on a 1 to 20 millimole scale is presented: Succinic acid, malic acid, fumaric acid and tartaric acid. Two methods for preparing the succinic acid are detailed.
Date: June 12, 1951
Creator: Jorgensen, E. C.; Bassham, J. A.; Calvin, M. & Tolbert, B. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

100 Areas technical activities report -- Physics, November 1951

Description: Activities discussed in this report are as follows: shielding studies; xenon generator; assay of xenon sample counting techniques; crystal diffraction neutron spectrometer; C{sup 12} cross sections measurements; magnetic spectrometer; scintillation spectroscopy; improved pile structure; criticality for the untamped 16 inch spherical reactor; exponential experiments; large scale pile structure; and operational pile physics.
Date: December 6, 1951
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Hydrolysis Products of Tributyl Phosphate and Their Effect on the Tributyl Phosphate Process for Uranium Recovery

Description: A study was made of the stability of tributyl phosphate (TBP) to acids, bases, and UO/sub 2/(NO/sub 3/su)/sub 2/ solutions, and of the chemistry of its decomposition products. The effect of such decomposition products on the extraction behavior of ion of MBP and lines the RAW analyzer and a subsequent reduction of feed flow rate in each case resulted in immediate reduction in losses, as evidenced by the polarographic results. In many such instances, several hours of operation at high waste loss… more
Date: April 15, 1951
Creator: Wagner, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Action of Oxygen on Activated Charcoal

Description: The following report provides information conducted with the purpose of ascertaining the effect of oxygen on activated charcoal at approximately one atmosphere by measuring the amount of CO2 formed over a known length of time.
Date: June 29, 1951
Creator: Bigelow, J. E.; Belaga, M. W. & Mulvihill, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Great Lakes Carbon Corporation Research and Development Division Quarterly Report: July-September 1951

Description: A report which aims to determine the ultimate purity of graphite attainable through repeated applications of the F process, to develop and improve purification processes through the use of such now purifying agents like CF4 and SF6, and to develop a simple purification process through the use of self-purifying raw materials or by purification of the raw materials prior to processing into graphite bars.
Date: 1951
Creator: Great Lakes Carbon Corporation. Research and Development Division.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Great Lakes Carbon Corporation Research and Development Division Quarterly Report: October-December 1951

Description: A report covering a directive which aims to complete three objectives: to develop an improved purification process through the use of such purifying agents such as CF4, SF6, and Cl2, to determine the ultimate purity of graphite attainable through repeated applications of the F process, and to develop a simplified purification process through the use of self-purifying raw materials or by purification of the raw materials prior to processing into graphite bars.
Date: 1951~
Creator: Great Lakes Carbon Corporation. Research and Development Division.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fixation of Carbon Dioxide by Barley Roots

Description: The uptake of carbon dioxide by plant roots preparations has been demonstrated by various authors. In addition to confirming the fact of fixation, I have investigated the effect of a number of factors involved and the compounds in which the absorbed carbon appears, using carbon-14.
Date: November 30, 1951
Creator: Poel, L. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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