Ammonium pertechnetate

Ammonium pertechnetate is a chemical compound with the formula NH4TcO4. It is the ammonium salt of pertechnetic acid. The most common form uses 99Tc.[1] The compound is readily soluble in aqueous solutions forming ammonium and pertechnetate ions.

Ammonium pertechnetate
Names
IUPAC name
Ammonium pertechnetate
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/H2O.3O.Tc/h1H2;;;;/q;;;;+1/p-1 Y
    Key: WJULHBIORCQBSY-PUQAOBSFSA-O Y
  • [O-][Tc](=O)(=O)=O.[NH4+]
Properties
H4NO4Tc
Molar mass 180 g·mol−1
Related compounds
Other anions
 Ammonium nitrate
Other cations
 Sodium pertechnetate
Potassium pertechnetate
Calcium pertechnetate
Related compounds
 Perchloric acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Ammonium pertechnetate

It can be synthesized by the reaction of pertechnetic acid and ammonium nitrate:

HTcO4 + NH4NO3 → NH4TcO4 + HNO3

It thermally decomposes under inert atmosphere at 700 °C to technetium dioxide:

NH4TcO4 → TcO2 + 2 H2O + 1/2 N2

References
  1. "Ammonium pertechnetate[99Tc]".
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