Hydrogen Iodide (HI) is a nonflammable gas that in aqueous solution forms a strong acid. It is formed from hydrogen and iodine vapor over a catalyst. It is toxic and acts as an irritant to skin. Its main uses are in the pharmaceutical industry.
|Molecular weight:127.91||Critical temperature: 424 K|
|Melting point: 222.4 K||Critical pressure: 8.3 MPa|
|Normal boiling point: 237.6 K||Critical density: 976 kg/m3|
|(Normal vapor density: 5.71 kg/m3 )|
|(@ 0°C, 101.3 kPa)|