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Thalluim in Meteorites
Procedures for the separation and concentration of microgram to nanogram amounts of thallium from gram amounts to galena and meteorite metal, sulfide, and silicate phases were developed and are described. The thallium is extracted from aqueous bromide of chloride solutions of moderate acidity using diethyl ether. A device for elimination of the large volumes of solvent by dropwise evaporation is described. Organic matter in the residue is destroyed by treatment with aqua regia, and the thallium is the residue is converted to the nitrate for spectrochemical or mass-spectrometric examination. The presence of thallium in the residue is tested by Rhodamine B. test.
Date:
December 20, 1960
Creator:
El-Badry, Hamed M.; Hodge, Edwin S.; Baer, William K. & Kohman, Truman Paul, 1916-
System:
The UNT Digital Library
Kinematics of Nuclear Reactions Calculated with the IBM-704 Computer
Program using the IBM-704 computer to calculate certain kinematic quantities for any non-relativistic reaction of the form.
Date:
December 20, 1960
Creator:
Williams, B. D.
System:
The UNT Digital Library
A Study of the Mechanism of Radiation Induced Gelation in Monomer-Polymer Mixtures
"A number of mixtures of polymers and multi-unsaturated monomers have been prepared and irradiated. The content of insoluble gel of irradiated samples of these polymer-monomer mixtures has been determined by extraction."
Date:
September 20, 1960
Creator:
Radiation Applications Incorporated
System:
The UNT Digital Library