Gamma scale chemistry progress report, May 1--31, 1948

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Description

An attempt has been made to prepare a compound of postum (Polonium 210) analogous to K{sub 2}{sup TeBr}{sub 6}. A preliminary experiment indicates possible preparation of bromides of postum and that these bromides are analogous to the chloride of postum. Photomicrographs of two crystalline forms of a product resulting from the reaction of bromine and postum are included in this report together with procedure used to form these crystals. Intermediate compounds formed in the attempted preparation of potassium postum bromide include a white residue from nitric acid containing postum and a yellow material formed on the ignition of this white ... continued below

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14 p.

Creation Information

Martin, A. December 31, 1948.

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  • Mound Plant (U.S.)
    Publisher Info: Mound Lab., Miamisburg, OH (United States)
    Place of Publication: Miamisburg, Ohio

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Description

An attempt has been made to prepare a compound of postum (Polonium 210) analogous to K{sub 2}{sup TeBr}{sub 6}. A preliminary experiment indicates possible preparation of bromides of postum and that these bromides are analogous to the chloride of postum. Photomicrographs of two crystalline forms of a product resulting from the reaction of bromine and postum are included in this report together with procedure used to form these crystals. Intermediate compounds formed in the attempted preparation of potassium postum bromide include a white residue from nitric acid containing postum and a yellow material formed on the ignition of this white residue. This yellow residue was identical in appearance to the yellow dioxide of postum. A red crystalline precipitate resulted when the yellow residue, which may well be QO{sub 2}, was treated with solution of hydrobromic acid and potassium bromide. Investigation of the use of titanium trichloride as a reducing agent to titrate, quantitatively tellurium dioxide has not yielded concordant results. An effort is being made to determine the best conditions for such a titration potentiometrically. Variations in concentrations, temperature of titration, electrode surface, acid concentration, and degree of agitation are in suspect.

Physical Description

14 p.

Notes

OSTI as DE96001408

Source

  • Other Information: PBD: [1948]

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  • Other: DE96001408
  • Report No.: MLM--123
  • DOI: 10.2172/117709 | External Link
  • Office of Scientific & Technical Information Report Number: 117709
  • Archival Resource Key: ark:/67531/metadc624886

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • December 31, 1948

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

Description Last Updated

  • Feb. 17, 2017, 3:39 p.m.

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Martin, A. Gamma scale chemistry progress report, May 1--31, 1948, report, December 31, 1948; Miamisburg, Ohio. (digital.library.unt.edu/ark:/67531/metadc624886/: accessed January 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.