rhodammonium

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English

Etymology

From rhodo- +‎ ammonium.

Noun

rhodammonium (uncountable)

  1. (chemistry, obsolete) A cation, Rh2(NH3)106+, containing rhodium and ammonia.
    • 1882, “Abstracts of Chemical Papers”, in Journal of the Chemical Society - Part 2, page 1173:
      Rhodammonium Compounds. By S. M. JÖRGENSEN (J. pr. Chem. [2], 25, 346-348).— The author has prepared and cursorily examined some of the rhodammonium compounds, and has found them to be strictly analogous to the cobalt- and chrom-ammonium compounds.
    • 1891, Henry Enfield Roscoe, Carl Schorlemmer, A Treatise on Chemistry: Metals, page 436:
      Rhodammonium Hydroxide, Rh2(NH3) 10 (OH)6, is obtained by warming rhodammonium chloride with water and silver oxide, and evaporating the solution.
    • 1896, Thomas Edward Thorpe, The metals, page 399:
      When the ammoniacal compound is mixed with excess ammonia and the solution filtered and concentrated, a yellow salt is obtained, which, on treatment with water, loses ammonium chloride and forms rhodammonium trichloride, 10NH3Rh2Cl6.
    • 1951, Sheet Metal Industries, volume 28, page 948:
      Other addition agents such as lead acetate and potassium dichromate, lead acetate and ammonium chloride, sodium thiosulphate with rhodammonium or with potassium dichromate and ammonium sulphate have been added

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