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HYDROGEN IODIDE

DOI: 10.1615/AtoZ.h.hydrogen_iodide

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:127.91Critical temperature: 424 K
Melting point: 222.4 KCritical pressure: 8.3 MPa
Normal boiling point: 237.6 KCritical density: 976 kg/m3
  (Normal vapor density: 5.71 kg/m3 )
 (@ 0°C, 101.3 kPa)
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