Ammonium perrhenate

  • Metaperrheniumsäureammoniumsalz
  • Rheniumstandardlösung

White solid

Fixed

3.97 g · cm -3 ( 25 ° C)

Slightly soluble in water ( 8.72 g · l-1 at 30 ° C)

Risk

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Ammonium perrhenate is an inorganic chemical compound consisting of the group of the perrhenates.

Production and representation

Ammonium perrhenate can be obtained by reaction of a perrhenic acid solution with ammonia.

Properties

Ammonium perrhenate is a white solid which is slightly soluble in water. It decomposes at 400 ° C in the rhenium (IV ) oxide, water and nitrogen. It has a tetragonal crystal structure of scheelite - type with space group I41 / a (a = 587.1 pm, c = 1294.2 pm ).

Use

The resulting in the reduction of ammonium perrhenate with 2- hydrazinopyridine and triphenylphosphine rhenium ( III) organohydrazide are potential radiopharmaceuticals.

CAS registry number Dangerous Substances Directive (67/548/EEC) Rhenium(IV) oxide Tetragonal crystal system
57210
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