Potassium perrhenate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.854
EC Number
  • 233-953-8
  • InChI=1S/K.4O.Re/q+1;;;;-1;
    Key: QFKRWIFGDGKWLM-UHFFFAOYSA-N
  • [K+].[O-][Re](=O)(=O)=O
Properties
KO4Re
Molar mass 289.301 g·mol−1
Appearance white solid[1]
Density 5.39 g·cm−3[1]
Melting point 555[2] °C (1,031 °F; 828 K)
Boiling point 1,370[2] °C (2,500 °F; 1,640 K)
11.9 g·l−1[3]
1.643 (20 °C)[4]
Hazards
GHS labelling:[5]
GHS03: OxidizingGHS07: Exclamation mark
Warning
H272, H315, H319, H335
P210, P220, P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Potassium perrhenate is an inorganic compound with the chemical formula KReO4.

Preparation

Potassium perrhenate can be produced by the neutralization of potassium hydroxide and perrhenic acid.[2]

Properties

Potassium perrhenate is a white solid that is sparingly soluble in water and ethanol. It have a tetragonal crystal system with the space group I41/a (No. 88), and lattice constants a = 567.4 pm and c = 1266.8 pm.[2] It is a strong oxidizer.[4]

References

  1. 1 2 Sigma-Aldrich Co., product no. 229822.
  2. 1 2 3 4 hrsg. von Georg Brauer. Unter Mitarb. von M. Baudler (1981). Handbuch der präparativen anorganischen Chemie / 3 (in German). Stuttgart: Enke. p. 1633. ISBN 3-432-87823-0. OCLC 310719495.
  3. ↑ Hölemann, Hans; Klesse, Walter (1938-04-22). "Beiträge zur Chemie und Elektrochemie des Rheniums VI. Die Löslichkeit des Kaliumperrhenats in Wasser zwischen 10 und 518°". Zeitschrift für anorganische und allgemeine Chemie. Wiley. 237 (2): 172–176. doi:10.1002/zaac.19382370207. ISSN 0863-1786.
  4. 1 2 Potassium perrhenate, 99% (metals basis), Re 64% at AlfaAesar, accessed on 2013-08-05 (PDF) (JavaScript required).
  5. ↑ "Potassium perrhenate". pubchem.ncbi.nlm.nih.gov.
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