Chemistry:Potassium perrhenate
From HandWiki
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| 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] | |
Refractive index (nD)
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1.643 (20 °C)[4] |
| Hazards | |
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| GHS Signal word | Warning |
| H272, H315, H319, H335 | |
| P210, P220, P261, P264, P264+265Script error: No such module "Preview warning".Category:GHS errors, P271, P280, P302+352, P304+340, P305+351+338, P319Script error: No such module "Preview warning".Category:GHS errors, P321, P332+317Script error: No such module "Preview warning".Category:GHS errors, P337+317Script error: No such module "Preview warning".Category:GHS errors, P362+364Script error: No such module "Preview warning".Category:GHS errors, P370+378, P403+233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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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]
- [math]\displaystyle{ \mathrm{KOH + HReO_4 \longrightarrow KReO_4 + H_2O} }[/math]
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
- ↑ 1.0 1.1 Sigma-Aldrich Co., product no. 229822.
- ↑ 2.0 2.1 2.2 2.3 hrsg. von Georg Brauer. Unter Mitarb. von M. Baudler (1981) (in de). Handbuch der präparativen anorganischen Chemie / 3.. 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 (Wiley) 237 (2): 172–176. doi:10.1002/zaac.19382370207. ISSN 0863-1786.
- ↑ 4.0 4.1 Potassium perrhenate, 99% (metals basis), Re 64% at AlfaAesar, accessed on 2013-08-05 (PDF) (JavaScript required).
- ↑ "Potassium perrhenate" (in en). https://pubchem.ncbi.nlm.nih.gov/compound/3661560#section=Safety-and-Hazards.
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