Bismuth pentafluoride
<templatestyles src="Chembox/styles.css"/>
Template:Chembox image cellTemplate:Chembox image cellTemplate:Chembox AllOtherNamesTemplate:Chembox headerbarTemplate:Chembox IndexlistTemplate:Chembox JmolTemplate:Chembox ChEMBLTemplate:Chembox ECHATemplate:Chembox E numberTemplate:Chembox IUPHAR ligandTemplate:Chembox UNIITemplate:Chembox CompToxTemplate:Chembox headerbarTemplate:Chembox headerbarTemplate:Chembox headerbarTemplate:Chembox GHS (set)Template:Chembox SDSTemplate:Chembox headerbarTemplate:Chembox Datapage checkTemplate:Chembox Footer| Template:Longitem | Template:Unbulleted list |
| ChEBI | Template:Unbulleted list |
| ChemSpider | Template:Unbulleted list |
| DrugBank | Template:Unbulleted list |
| EC Number | Template:Unbulleted list |
| KEGG | Template:Unbulleted list |
| Template:Longitem | Template:Unbulleted list |
| RTECS number | Template:Unbulleted list |
| Script error: No such module "collapsible list". | |
| Script error: No such module "collapsible list". | |
| Template:Longitem | BiF5 |
| Molar mass | 303.97 g mol−1 |
| Appearance | long white needles,[1] colourless crystalline solid[2] |
| Density | 5.40 g cm−3[1] |
| Melting point | Template:Chembox CalcTemperatures |
| Boiling point | Template:Chembox CalcTemperatures |
| Template:Longitem | octahedral Bi |
| NFPA 704 (fire diamond) | Template:NFPA 704 diamond |
| Flash point | Template:Chembox CalcTemperatures |
| Template:Longitem | bismuth trichloride, bismuth tribromide, bismuth triiodide, pentamethylbismuth |
| Template:Longitem | phosphorus pentafluoride, arsenic pentafluoride, antimony pentafluoride |
| Template:Longitem | bismuth trifluoride |
Template:Chembox Footer/trackingScript error: No such module "TemplatePar".Template:Short description
Bismuth pentafluoride is an inorganic compound with the formula BiF5. It is a white solid that is highly reactive. The compound is of interest to researchers but not of particular value.
Structure
BiF5 is polymeric and consists of linear chains of trans-bridged corner sharing BiF6 octahedra.[1][3] This is the same structure as α-UF5.[1]
Preparation
BiF5 can be prepared by treating BiF3 with F2 at 500 °C.[2]
- BiF3 + F2 → BiF5
In an alternative synthesis, ClF3 is the fluorinating agent at 350 °C.[4]
- BiF3 + ClF3 → BiF5 + ClF
Reactions
Bismuth pentafluoride is the most reactive of the pnictogen pentafluorides and is an extremely strong fluorinating agent. It reacts vigorously with water to form ozone and oxygen difluoride, and with iodine or sulfur at room temperature. BiF5 fluorinates paraffin oil (hydrocarbons) to fluorocarbons above 50 °C and oxidises UF4 to UF6 at 150 °C. At 180 °C, bismuth pentafluoride fluorinates Br2 to BrF3 and Cl2 to ClF.[1]
BiF5 also reacts with alkali metal fluorides, MF, to form hexafluorobismuthates, M[BiF6], containing the hexafluorobismuthate anion, [BiF6]−.[2] Bismuth pentafluoride in hydrofluoric acid solvent also reacts with nickel fluoride to form the nickel salt of this anion, which can be incorporated into a complex with acetonitrile.[5]
References
<templatestyles src="Reflist/styles.css" />
Script error: No such module "Check for unknown parameters".