Search Results

open access

Thalluim in Meteorites

Description: 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 thall… more
Date: December 20, 1960
Creator: El-Badry, Hamed M.; Hodge, Edwin S.; Baer, William K. & Kohman, Truman Paul, 1916-
Partner: UNT Libraries Government Documents Department
open access

A Study of the Mechanism of Radiation Induced Gelation in Monomer-Polymer Mixtures

Description: "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
Partner: UNT Libraries Government Documents Department
Back to Top of Screen