Fuming sulfuric acid: Difference between revisions
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'''Fuming sulfuric acid''', also called '''oleum''', is produced by adding [[sulfur trioxide]], SO<sub> | '''Fuming sulfuric acid''', also called '''oleum''', is produced by adding [[sulfur trioxide]], SO<sub>3</sub>, to [[sulfuric acid]]. It mostly contains disulfuric acid (also called pyrosulfuric acid). | ||
:SO<sub>3</sub> + H<sub>2</sub>SO<sub>4</sub> → H<sub>2</sub>S<sub>2</sub>O<sub>7</sub> | :SO<sub>3</sub> + H<sub>2</sub>SO<sub>4</sub> → H<sub>2</sub>S<sub>2</sub>O<sub>7</sub> | ||
Additional sulfur trioxide molecules can be added to create trisulfuric acid, tetrasulfuric acid and so on up [[sulfur trioxide polymer]]s, (SO<sub>3</sub>)<sub>n</sub>. | Additional sulfur trioxide molecules can be added to create trisulfuric acid, tetrasulfuric acid and so on up [[sulfur trioxide polymer]]s, (SO<sub>3</sub>)<sub>n</sub>. | ||
Revision as of 13:17, 16 January 2008
Fuming sulfuric acid, also called oleum, is produced by adding sulfur trioxide, SO3, to sulfuric acid. It mostly contains disulfuric acid (also called pyrosulfuric acid).
- SO3 + H2SO4 → H2S2O7
Additional sulfur trioxide molecules can be added to create trisulfuric acid, tetrasulfuric acid and so on up sulfur trioxide polymers, (SO3)n.