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The Extraction Method of Purification of Uranyl Nitrate

Description: Technical report. Three extractions of a diethyl ether solution of uranyl nitrate with small portions of water are effective in removing rare earths, as is shown by radio-gadolinium and radio-europium tracer experiments. A study of representative ethers, alcohols, ketones, and esters showed that diethyl ether and a mixture of 85% ethyl methyl ketone with 15% xylene are the best solvents for the extraction.
Date: August 28, 1942
Creator: Myers, L. S., Jr.; Anderson, K. C.; Wexler, Sol & Boyd, G. E.
Item Type: Refine your search to only Report
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Viscosities and Densities of Fluorolube Oils

Description: Abstract: Since the viscosity-temperature relationships of fluorocarbons are somewhat unusual, when compared to hydrocarbons, for example, it was decided to measure the viscosities, at several temperatures, of various fluorolube oils. The calculation of the viscosity of a blend of oils is at best an uncertain operation, varying considerably with the method used. A comparison of various methods was indicated, in order that reasonably accurate values might be assumed for theoretical composites.… more
Date: April 28, 1943
Creator: Haendler, H. M.; Burger, L. L.; Sheldon, Z. D. & Barber, E. J.
Item Type: Refine your search to only Report
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The Heavy-Water Homogeneous Pile: a Review of Chemical Researches and Problems

Description: Technical Report: A generalized review of the chemical problems and researches related principally to the heavy water homogeneous pile is presented herewith. The report covers researches performed principally by the Columbia Group who initiated the study. This report contains a chronological outline of the development, a discussion of some special topics whose significance is paramount in any slurry pile discussion, and finally an outline of important research problems remaining, roughly grad… more
Date: February 28, 1944
Creator: Hiskey, C. F. & Eidinoff, Maxwell Leigh, 1915-
Item Type: Refine your search to only Report
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Preparation of Carrier Free Zr-Cb Tracer, Problem Assignment No. 263-X61C, Progress Report

Description: Technical report abstract. A rapid procedure for the preparation of very pure carrier-free Zr and Nb tracer involves the chloroform extraction of the cupferrides of Zr and Nb activities from process solutions. Zr and Nb form very stable chloroform soluble cupferrides in acid solutions (CK-993) and are separated from other fission elements almost quantitatively to yield pure mixture of Zr and Nb activity. A minimum of operations is required and the method is easily adaptable to remote control.
Date: August 28, 1944
Creator: Marinsky, Jacob A. (Jacob Akiba), 1918-2005 & Ballou, Nathan Elmer, 1919-
Item Type: Refine your search to only Report
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The Study and Calibration of P.I.G.'s in TClâ‚„ Vapor

Description: Report discussing a study involving P.I.G.'s (Philips Ion Gage) in TClâ‚„ vapor in an all-carbon oven to compare data to a previous study involving P.I.G.'s in air. The purpose of the investigation was to determine the best P.I.G. in TClâ‚„ vapor and obtain its calibration.
Date: September 28, 1945
Creator: Scott, C.; Fuller, Harold Q.; Chelius, Leo G. & Starr, C.
Item Type: Refine your search to only Report
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The Chlorination of TO₃

Description: 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.
Item Type: Refine your search to only Report
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Interfacial Tension Measurement on A1(NO₃)₃ - H₂O - HNO₃ - Dibutyl Cellosolve System

Description: This report discusses two methods used for experimental determination of the interfacial tension of an immisible aqueous-organic system where the density of the organic phase is less than that of the aqueous phase. The methods discussed are the falling drop method and the Donnan modification/rising drop method.
Date: January 28, 1947
Creator: Turk, E. H.
Item Type: Refine your search to only Report
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Tentative Procedures for Analysis of HCP Process Materials

Description: Abstract: The procedures recommended for analysis in Department 190 Laboratories, in the Limits Control Laboratory, and in the Analytical Development Laboratories, of all process materials from the HCP cycle are presented in a stepwise manner. A description of the characteristics of each sample type along with a brief description of factors involved in the Analytical Quality Control program is included.
Date: May 28, 1947
Creator: Belknap, Herbert J.; Nessle, G. J. & Grimes, W. R.
Item Type: Refine your search to only Report
open access

Tables of Neutron Cross Sections

Description: Report presenting data tables which summarize neutron cross sections for elements from hydrogen to bismuth. This data was to be available on September 1, 1947. Purpose and acknowledgements are given as well as criteria for omitting measurements and explanation of the material.
Date: October 28, 1947
Creator: Way, Katharine & Haines, G.
Item Type: Refine your search to only Report
open access

Preparation of Radioiron of High Specific Activity

Description: From abstract: "A comparison has been made of methods for producing Fe59 of higher specific activity than that obtainable by irradiating natural iron in the Clinton pile. Five processes have been considered, (1) irradiation of natural iron in the Hanford piles, (2) irradiation of enriched F58 in the Clinton and Hanford piles, (3) Szilard-Chalmers enrichment using ferrocyanides in the Clinton pile, (4) collection of recoils in a phase separable from the bulk of the iron, and (5) the Co59 (n,p) F… more
Date: January 28, 1948
Creator: Swartout, J. A. & Rice, H. M.
Item Type: Refine your search to only Report
open access

Determination of Uranium by Fluorescence

Description: Abstract: "The uranium content of badly contaminated uranium solutions may be determined quickly using visual comparison methods to an accuracy of [...]. This accuracy may be considerably improved by employing the fluorimeter herein described. Interfering ions and their removal using liquid-liquid extractions are considered."
Date: May 28, 1948
Creator: Grimes, W. R. & Clark, F. E.
Item Type: Refine your search to only Report
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The Isolation and Properties of Curium

Description: From introduction: "The discovery of element number 96, curium, was realized by the preparation and identification of the isotope Cm-242 by G. T. Seaborg, R. A. James and A. Ghiorso by cyclotron bombardment of Pu-239 with helium ions."
Date: July 28, 1948
Creator: Werner, Louis Bernard
Item Type: Refine your search to only Report
open access

Corrosion investigation

Description: Report describing the results of corrosion tests on 68 types of materials. Generally, most materials were tested with an agitator and vapor and some were tested a 3rd way with alternate immersion.
Date: September 28, 1948
Creator: Long, Edward
Item Type: Refine your search to only Report
open access

Some Special Refractory Materials

Description: Report explaining some different categories of special refractory materials. These categories of materials and their properties are discussed as well as the specific materials that fall into these categories.
Date: September 28, 1948
Creator: Norton, F. H.
Item Type: Refine your search to only Report
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