# Potassium pertechnetate

Crystal structure
__ K +      __ Tc 7+      __ O 2−
Crystal system
Space group

I 4 1 / a

Lattice parameters
• a = 563.0 pm
• c = 1286.7 pm
General
Surname Potassium pertechnetate
Ratio formula KTcO 4
Brief description

white solid

External identifiers / databases
 CAS number 13718-33-7 Wikidata Q18212441
properties
Molar mass 201.1 g mol −1
Physical state

firmly

Melting point

540 ° C

solubility

2.13 g l −1 (25 ° C)

Hazard and safety information

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 .

Potassium pertechnetate, KTcO 4 is a chemical compound of potassium from the group of pertechnetates .

## Extraction and presentation

Kaliumpertechnetat can be prepared by the neutralization of the pertechnetic acid with potassium hydroxide can be obtained.

${\ displaystyle {\ ce {KOH + HTcO4 -> KTcO4 + H2O}}}$

## properties

The distance of the Tc – O bond 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. Potassium pertechnetate crystallizes in a crystal structure similar to potassium perrhenate with the space group I 4 1 / a (space group no. 88). The lattice parameters are a = 563.0 pm and c = 1286.7 pm.

## Individual evidence

1. Jane E. Macintyre: Dictionary of Inorganic Compounds . CRC Press, 1992, ISBN 0-412-30120-2 , pp. 3535 .
2. a b c Klaus Schwochau: Technetium: Chemistry and Radiopharmaceutical Applications . John Wiley & Sons, 2008, ISBN 3-527-61337-4 , pp. 129 .
3. The hazards emanating from radioactivity do not belong to the properties to be classified according to the GHS labeling. With regard to other hazards, this substance has either not yet been classified or a reliable and citable source has not yet been found.