Potassium perrhenate

Potassium perrhenate
Identifiers
CAS Number	10466-65-6 ;
3D model (JSmol)	Interactive image;
ChemSpider	2894851;
ECHA InfoCard	100.030.854
EC Number	233-953-8;
PubChem CID	3661560;
	InChI InChI=1S/K.4O.Re/q+1;;;;-1; Key: QFKRWIFGDGKWLM-UHFFFAOYSA-N;
	SMILES [K+].[O-][Re](=O)(=O)=O;
Properties
Chemical formula	KO4Re
Molar mass	289.301 g·mol−1
Appearance	white solid
Density	5.39 g·cm−3
Melting point	555 °C (1,031 °F; 828 K)
Boiling point	1,370 °C (2,500 °F; 1,640 K)
Solubility in water	11.9 g·l−1
Refractive index (nD)	1.643 (20 °C)
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H272, H315, H319, H335
Precautionary statements	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]

\mathrm {KOH+HReO_{4}\longrightarrow KReO_{4}+H_{2}O}

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]

^ ^a ^b Sigma-Aldrich Co., product no. 229822.
^ ^a ^b ^c ^d 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.
^ 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. 237 (2). Wiley: 172–176. doi:10.1002/zaac.19382370207. ISSN 0863-1786.
^ ^a ^b Potassium perrhenate, 99% (metals basis), Re 64% at AlfaAesar, accessed on 2013-08-05 (PDF) (JavaScript required).^{[dead link]}
^ "Potassium perrhenate". pubchem.ncbi.nlm.nih.gov.

Identifiers


CAS Number	10466-65-6^Y
3D model (JSmol)	Interactive image
ChemSpider	2894851
ECHA InfoCard	100.030.854
EC Number	233-953-8
PubChem CID	3661560
InChI InChI=1S/K.4O.Re/q+1;;;;-1; Key: QFKRWIFGDGKWLM-UHFFFAOYSA-N
SMILES [K+].[O-][Re](=O)(=O)=O
Properties
Chemical formula	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)
Solubility in water	11.9 g·l⁻¹^[3]
Refractive index (n_D)	1.643 (20 °C)^[4]
Hazards
GHS labelling:^[5]
Pictograms
Signal word	Warning
Hazard statements	H272, H315, H319, H335
Precautionary statements	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