Nitrogen triiodide

Nitrogen triiodide is an inorganic compound with the formula NI3. It is an extremely sensitive contact explosive: small quantities explode with a loud, sharp snap when touched even lightly, releasing a purple cloud of iodine vapor; it can even be detonated by alpha radiation. NI3 has a complex structural chemistry that is difficult to study because of the instability of the derivatives. Although nitrogen is more electronegative than iodine, the compound was so named due to its analogy to the compound nitrogen trichloride.

Nitrogen triiodide
Names
IUPAC names
Nitrogen triiodide
Triiodoazane
Triiodidonitrogen
Other names
Nitrogen iodide
Ammonia triiodide
Touch Powder
Triiodine nitride
Triiodine mononitride
Triiodamine
Triiodoamine
Iodine nitride
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/I3N/c1-4(2)3 Y
    Key: FZIONDGWZAKCEX-UHFFFAOYSA-N Y
  • InChI=1/I3N/c1-4(2)3
    Key: FZIONDGWZAKCEX-UHFFFAOYAL
  • IN(I)I
Properties
NI3
Molar mass 394.719 g/mol
Appearance dark solid
Boiling point sublimes at −20 °C
Insoluble
Solubility organic solvents, such as diethyl ether
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Extremely explosive and unstable
NFPA 704 (fire diamond)
3
0
4
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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