Interaction | Reaction | Process Data Page
In the lab, the addition of conc. sulfuric acid to sodium iodide gives HI gas. HOWEVER, the hydrogen iodide formed is further oxidised by sulfuric acid to iodine and the sulfuric acid is reduced to SO2. The HI reacts with SO2 to give I2 and sulfur. Finally, the HI reacts with sulfur to give I2 and hydrogen sulfide.Thus, the action of conc. sulfuric acid on solid sodium iodide gives a complex mixture of: HI, SO2, S, H2S and I2.Observations: yellow sulfur, smell of bad eggs (H2S), purple fumes or black solid of iodine.
|Reactant Page||Go To||Go To|
|Sodium iodide||Reactions Using||Reactions Forming|
|Sulfuric acid||Reactions Using||Reactions Forming|
|Hydrogen iodide||Reactions Using||Reactions Forming|
|Sodium sulfate||Reactions Using||Reactions Forming|
|Interaction, Reaction, Process defined as:|
© Mark R. Leach 1999 –
Queries, Suggestions, Bugs, Errors, Typos...
If you have any:
Suggestions for links
Bug, typo or grammatical error reports about this page,
please contact Mark R. Leach, the author, using firstname.lastname@example.org