Accession Number : ADA316306

Title :   Condensation of Pure He(3) and Its Vapor Pressures Between 1.2 Deg. and Its Critical Point,

Corporate Author : TECHNICAL INFORMATION SERVICE (AEC) OAK RIDGE TN

Personal Author(s) : Sydoriak, S. G. ; Grilly, E. R. ; Hammel, E. F.

PDF Url : ADA316306

Report Date : 1948

Pagination or Media Count : 6

Abstract : On October 13, 1948 the authors succeeded in condensing pure He(3), that was prepared by E. S. Robinson and E. M. Potter of the laboratory. The isotope was 'grown' from pure tritium solutions by beta decay of the tritium. The latter was initially separated from traces of He(4) by passage through a palladium valve. The He(3) was purified by absorption of H(2) and T(2) in uranium, followed by repeated successive passages over (1) hot CuO followed by a liquid air trap, and (2) hot Ca, thus removing all other impurities except the rare gases.

Descriptors :   *ISOTOPES, *HELIUM, *VAPOR PRESSURE, *CONDENSATION, *TRITIUM, CALCIUM, SOLUTIONS(MIXTURES), AIR, LIQUIDS, IMPURITIES, PURITY, ABSORPTION, VALVES, PALLADIUM, URANIUM, COPPER OXIDES, RARE GASES, BETA DECAY.

Subject Categories : Inorganic Chemistry
      Physical Chemistry
      Radiation and Nuclear Chemistry
      Isotopes

Distribution Statement : APPROVED FOR PUBLIC RELEASE