Chemistry:Potassium hexaiodorhenate
From HandWiki
| Names | |
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| IUPAC name
dipotassium; hexaiodo rhenium(2-)
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| Other names
Potassium hexaiodorhenate(IV), dipotassium hexaiodorhenate
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| Identifiers | |
3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| I6K2Re | |
| Molar mass | 1025.830 g·mol−1 |
| Appearance | black crystals |
| Density | g/cm3 |
| reacts with water | |
| Hazards | |
| GHS pictograms | 
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| GHS Signal word | Danger |
| H314 | |
| P260, P264, P280, P301+330+331, P302+361+354Script error: No such module "Preview warning".Category:GHS errors, P304+340, P305+354+338Script error: No such module "Preview warning".Category:GHS errors, P316Script error: No such module "Preview warning".Category:GHS errors, P321, P363, 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 hexaiodorhenate is an inorganic chemical compound with the chemical formula K
2ReI
6.[2][3]
Synthesis
The compound can be prepared by reduction of potassium perrhenate by potassium iodide in concentrated hydrochloric acid:[4]
- 2KReO
4 + 2KI + 16HI → 2KReI
6 + 3I
2 + 8H
2O
- 2KReO
Physical properties
The compound forms black crystals, soluble in warm HI,[clarification needed] methanol, and acetone.[5]
Chemical properties
Potassium hexaiodorhenate is hydrolyzed in aqueous solutions.
- K
2ReI
6 + 2H
2O → ReO
2 + 2KI + 4HI
- K
It decomposes when heated:
- K
2ReI
6 → Re + 2KI + 2I
2
- K
It reacts with strong acids:
- K
2ReI
6 + H
2SO
4 → HReI
5 + HI + K
2SO
4
- K
References
- ↑ "Dipotassium hexaiodorhenate" (in en). https://pubchem.ncbi.nlm.nih.gov/compound/16217292#section=Safety-and-Hazards.
- ↑ "Potassium hexaiodorhenate(IV)". Sigma Aldrich. https://www.sigmaaldrich.com/RU/en/product/aldrich/575038.
- ↑ "Potassium Hexaiodorhenate(IV)" (in en). American Elements. https://www.americanelements.com/potassium-hexaiodorhenate-iv-19710-22-6.
- ↑ (in en) Inorganic Syntheses, Volume 27. John Wiley & Sons. 22 September 2009. p. 294. ISBN 978-0-470-13293-7. https://books.google.com/books?id=6yB2BSYfJUcC&dq=Potassium+hexaiodorhenate&pg=PA294. Retrieved 28 August 2024.
- ↑ Macintyre, Jane E. (23 July 1992) (in en). Dictionary of Inorganic Compounds. CRC Press. p. 3516. ISBN 978-0-412-30120-9. https://books.google.com/books?id=9eJvoNCSCRMC&dq=Potassium+hexaiodorhenate&pg=PA3516. Retrieved 28 August 2024.
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