Abstract: Preparation of sodium persulfate in an electrolytic cell having a protected cathode is obtained by the direct electrolysis of aqueous anolyte solution in which there is initially dissolved a sufficient amount of a mixture of sulfates and peroxydisulfates of sodium and ammonium to provide an anolyte feed solution containing by weight 5 to 9% sodium ions, 12 to 30% sulfate ions, 1 to 4% ammonium ions, an effective amount of a polarizer, and optionally up to 20% peroxydisulfate ions. The cell catholyte is a sulfuric acid solution, which may contain Na.sup.+ and NH.sub.4.sup.+ values, and the electric current density is at least 0.5 amperes per square centimeter of platinum surface of the anode.

Abstract: A process for the direct electrolytic preparation of sodium or ammonium peroxydisulfate with high current efficiencies in which the polarizer is glycine. Glycine can be used as a polarizer in either batch or continuous cyclic electrolysis processes. The glycine is used in concentrations of from about 0.004 weight percent up to about 0.5 weight percent.

Abstract: A method of recovering uranium hexafluoride from gaseous mixtures employing as an absorbent a liquid composition at least one of the components of which is chosen from the group consisting of ethanolamine, diethanolamine, and 3-methyl-3-amino-propane-diol-1,2.