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ANNUAL SUMMARY RESEARCH REPORT IN CHEMISTRY, JULY 1, 1959-JUNE 30, 1960

Description: Pilot-plant work on ion exchange separation of rare earths indicates that elution with HEDTA on hydrogen-form resin should conserve Sc. Then, after Sc, Lu, Yb, Tm, and Er are diverted to an auxiliary bed, the remaining rare earths can be resolved with EDTA. Data from investigations of rare-earth glycolate solubilities at 20 and 60 deg C are tabulated. In other work, the effectiveness of glycolic acid for fractionally precipitating rare earths was investigated, and the solubilities and compositi… more
Date: September 1, 1960
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Radiochemistry of Fluorine, Chlorine, Bromine and Iodine

Description: This volume which deals with the radiochemistry of fluorine, chlorine, bromine, and iodine is one of a series of monographs on radiochemistry of the elements. A review of the nuclear and chemical features of particular interest to the radiochemist, a discussion of problems of dissolution of a sample and counting techniques, and a collection of radiochemical procedures for the elements as found in the literature are included. (W.L.H.)
Date: January 1, 1960
Creator: Kleinberg, J. & Cowan, G. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The ScCl3-Sc System

Description: Experimental data supporting lower valence halides of scandium were not found in the literature. Our investigation was of the phase diagram of the ScCl3-Sc system, and also the vapor pressure-composition isotherm (at 960 degree) for this system. Investigation of the ScCl3-Sc system presented particular difficulties in comparison with analogous systems for rare earth elements in that ScCl3 is highly volatile (boiling pt. = 967 degree); according to our data the vapor pressure is 512 mm Hg measur… more
Date: April 1964
Creator: Polyachenok, O. G. & Novikov, G. I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Vapor Pressures of VCl2, VCl3, VBr2, and VBr3 by Knudsen Effusion

Description: Technical report. From Abstract : "The vapor pressures of crystalline VCl2, VBr2, VCl3 and VBr3 have been measured by the Knudsen effusion method using pyrex and Vycor effusion cells. ... During the measurements on VCl3 and VBr3 dissociation and disproportionation of the samples occurred simultaneously with the simple vaporization. However, because the product of each of these processes was collected separately during an experiment, the vapor pressure due to sublimation was obtained without dif… more
Date: August 21, 1962
Creator: McCarley, R. E. & Roddy, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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