Fuming sulfuric acid: Difference between revisions
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: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 (H<sub>2</sub>S<sub>3</sub>O<sub>10</sub>), tetrasulfuric acid (H<sub>2</sub>S<sub>4</sub>O<sub>13</sub>) and so on up to very long [[sulfur trioxide polymer]]s, H(SO<sub>3</sub>)<sub>n</sub>H. | ||
Revision as of 13:20, 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 (H2S3O10), tetrasulfuric acid (H2S4O13) and so on up to very long sulfur trioxide polymers, H(SO3)nH.