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The document summarizes a study that measured the acidity of various solutions in anhydrous hydrogen fluoride (HF) using aromatic nitro compounds as indicators. Key findings include: - The Hammett acidity function (Ho) for anhydrous HF was found to be -15.1, stronger than the previously believed value of -11. - Solutions of antimony pentafluoride (SbF5) in HF were shown to be much more acidic than solutions of SbF5 in other acids like fluorosulfuric acid (HS03F). - At high concentrations in HF, SbF5 fo
- Author
- Marcio Fernandes
- Language
- EN