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A solution of a strong acid in a very acidic (usually nonaqueous) solvent, functioning as a powerful protonating agent.
- ‘Others were Bronsted superacids such as HSO3F or the extremely strong superacids obtained by combining e.g. HSO3F or HF with SbF5.’
- ‘Typical solid Brönsted superacids include titanium dioxide: sulfuric acid and zirconium dioxide: sulfuric acid mixtures.’
- ‘What makes superacids difficult is that chemistry's going on, the making and breaking of bonds.’
- ‘Urea and substituted ureas exhibit a weak basicity and may bind a superacid in the form of a quarternary ammonium salt.’
- ‘Solid superacid catalysts have many advantages such as an easy separation of products from catalyst, the repeated use and regeneration of catalysts, as compared with liquid superacids.’
We take a look at several popular, though confusing, punctuation marks.
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The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.