Learn how ACS can help you stay ahead in the world of chemistry. Figure 2: Antimony pentafluoride. Explore the interesting world of science with articles, videos and more. BiF5 is a polymer. It can protonate and dissolve almost all organic compounds and has several industrial uses, including catalysis and hydrofluorination. It is used to make very strong acids. Advance your career with professional development courses. Antimony pentafluoride is prepared by the reaction of antimony pentachloride with anhydrous hydrogen fluoride: [5] SbCl 5 + 5 HF → SbF 5 + 5 HCl. Find a chemistry community of interest and connect on a local and global level. Can antimony pentafluoride be made by adding hydrogen fluoride to antimony trifluoride? This week’s molecules combine to make “magic”. Antimony pentafluoride is prepared by the reaction of antimony pentachloride with anhydrous hydrogen fluoride: SbCl 5 + 5 HF → SbF 5 + 5 HCl. It is corrosive to the skin and eyes. The material adopts a more complicated structure in the liquid and solid states. This colourless, viscous liquid is a valuable Lewis acid and a component of the superacid fluoroantimonic acid, the strongest known acid, formed when mixing liquid HF with liquid SbF5 in a 2:1 ratio. * Exposure to Antimony Pentafluoride can irritate the nose, mouth, throat and lungs causing coughing, wheezing and/or shortness of breath. It is ≈1000 times stronger than pure sulfuric acid, which puts it in the class of superacids. The molecule can be notable for its current or historical importance or for any quirky reason. ACS-Hach Programs It is made by reacting antimony pentoxide or antimony pentachloride with hydrofluoric acid. It can also be prepared from antimony trifluoride and fluorine. The second molecule, antimony pentafluoride (SbF5), was first reported in 1904. Learn about financial support for future and current high school chemistry teachers. Antimony pentafluoride reacts with most chemical compounds. [4], Antimony pentafluoride is prepared by the reaction of antimony pentachloride with anhydrous hydrogen fluoride:[5], It can also be prepared from antimony trifluoride and fluorine. Edited by G. Brauer, Academic Press, 1963, NY. Uncover the Chemistry in Everyday Life, Recognizing and celebrating excellence in chemistry and celebrate your achievements. Antimony pentafluoride is prepared by treating antimony pentachloride with excess anhydrous hydrogen fluoride. Uses. Viewed 87 times 1 $\begingroup$ I was looking at how the strongest acid was made and I found something I … Explore chemistry education resources by topic that support distance learning. Funding to support the advancement of the chemical sciences through research projects. Network with colleagues and access the latest research in your field. Learn more about this molecule from CAS, the most authoritative and comprehensive source for chemical information. In the gas phase, SbF 5 adopts a trigonal bipyramidal structure of D 3h point group symmetry (see picture). The antimony pentafluoride is separated from the volatile byproducts by fractional distillation. Antimony pentafluoride is the inorganic compound with the formula SbF5. [7] The related species PF5 and AsF5 are monomeric in the solid and liquid states, probably due to the smaller sizes of the central atom, which limits their coordination number. Handbook of Preparative Inorganic Chemistry, 2nd Ed. This week’s molecules combine to make “magic”. 1376-7. [6] Structure and chemical reactions. NMR spectra of the solutions showed that the acidic combination cleaved the long-chain alkanes, and the fragments isomerized to form stable tert-butyl cations (Me3C+). See our Browser Support/Compatibility page for supported browsers list. The material adopts a more complicated … Diversity in Chemistry Awards Active 1 year, 5 months ago. Let ACS help you navigate your career journey with tools, personal coaching and networking. Olah, G. A.; Prakash, G. K. S.; Wang, Q.; Li, X.-y. In the gas phase, SbF 5 adopts a trigonal bipyramidal structure of D 3h point group symmetry (see picture). It is ≈1000 times stronger than pure sulfuric acid, which puts it in the class of superacids. "Dioxygenyl Salts", National Institute for Occupational Safety and Health, "Chemical Database - Antimony Pentafluoride", National Pollutant Inventory - Antimony and compounds fact sheet, National Pollutant Inventory - Fluoride compounds fact sheet, https://en.wikipedia.org/w/index.php?title=Antimony_pentafluoride&oldid=981999928, Articles with changed ChemSpider identifier, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, Releases hydrofluoric acid upon contact with water or biological tissues, This page was last edited on 5 October 2020, at 16:41.
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