rhodammonium

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

See also

• rhodamine