Ammonium 6 molybdenum colate (II)

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Crystal structure
Hexamolybdonic colate anion in ammonium 6-molybdonic colate
Hexamolybdoniccolate ion in ammonium 6-molybdoniccolate
General
Surname Ammonium 6 molybdenum colate (II)
other names

Ammonium hexa-μ3-hydroxynickelate hexa-μ-oxododecaoxohexamolybdate (4-)

Ratio formula (NH 4 ) 4 H 6 NiMo 6 O 24
Brief description

light blue crystalline solid

External identifiers / databases
CAS number
  • 12208-34-3
  • 137827-88-4 (heptahydrate)
Wikidata Q25393403
properties
Molar mass 1096.59 g mol −1
Physical state

firmly

solubility

moderately soluble in cold, somewhat better in hot water

safety instructions
GHS hazard labeling
no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

When ammonium-6-molybdoniccolat (II) is a polyoxometalate species of molybdenum .

presentation

To prepare ammonium 6-molybdonic colate (II), ammonium heptamolybdate tetrahydrate is reacted with nickel sulfate in boiling water . Then ammonium chloride is added.

properties

Ammonium-6-molybdoniccolate (II) is a heteropolymolybdate that forms light blue crystals. It crystallizes in the space group P 2 1 / a (space group no. 14, position 3) with the lattice parameters a = 11.99 Å , b = 11.13 Å, c = 11.38 Å and β = 109.3 ° . Template: room group / 14.3

Individual evidence

  1. a b c d Georg Brauer (Ed.) U. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0 , p. 1787.
  2. This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
  3. Kurz, Philipp; Stock, Norbert: Synthetic Inorganic Chemistry: Basic Course. Berlin: Walter de Gruyter, 2013. ISBN 978-3-11-025875-2 , p. 78.
  4. U. Lee, H.-C. Joo, JS Kwon: Tetraammonium hexahydrogen hexamolybdonickelate (II) tetrahydrate, (NH 4 ) 4 [H 6 NiMo 6 O 24 ] · 4 H 2 O. In: Acta Crystallographica , E58, 2002, pp. I6-i8, doi: 10.1107 / S1600536801021109 .