Potassium pertechnetate
Chemical compound
From Wikipedia, the free encyclopedia
Potassium pertechnetate is a chemical compound of technetium and potassium, with the chemical formula of KTcO4.
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| Identifiers | |
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3D model (JSmol) |
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| Properties | |
| KTcO4 | |
| Molar mass | 201.1 |
| Appearance | colourless solid[1] |
| Melting point | 540 °C |
| Boiling point | around 1000 °C |
| 2.13g (20 °C) | |
| Related compounds | |
Other anions |
potassium permanganate potassium perrhenate |
Other cations |
sodium pertechnetate ammonium pertechnetate silver pertechnetate |
Related compounds |
technetium(VII) oxide pertechnetic acid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation
Potassium pertechnetate can be obtained by the neutralisation of potassium hydroxide and pertechnetic acid:[2]
- KOH + HTcO4 → KTcO4 + H2O
Properties
The distance of the Tc–O bond in potassium pertechnetate is 173.9 pm and the angle of the O–Tc–O bond is 108.05° and 110.19°. The distance between the potassium and the oxygen is 289.36 pm and 286 pm.[2] Potassium pertechnetate crystallizes in the tetragonal crystal system with space group I41/a (space group no. 88). The lattice parameters are a = 563.0 pm and c = 1286.7 pm.[3]
Use
Potassium pertechnetate is used to prepare other radiopharmaceuticals.[2]