Niobium nitride

Niobium nitride
Niobium nitride
IUPAC name
Niobium nitride
Identifiers
CAS number 24621-21-4 YesY
Properties
Molecular formula NbN
Molar mass 106.91 g/mol
Appearance gray solid
Density 8.470 g/cm3
Melting point

2573 °C
Solubility in water reacts to form ammonia
Structure
Crystal structure cubic, cF8
Space group Fm3m, No. 225
Hazards
MSDS External MSDS
EU Index Not listed
Flash point Non-flammable
Related compounds
Other cations Vanadium nitride
Tantalum nitride
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Niobium nitride is a compound of niobium and nitrogen with the chemical formula NbN. At low temperatures (about 10 K), niobium nitride becomes a superconductor, and is used in detectors for infrared light.

Contents

Uses

  • Niobium nitride's main use is as a superconductor. Detectors based on it can detect a single photon in the 1-10 micrometer section of the infrared spectrum, which is important for astronomy and telecomunications. It can detect changes up to 25 gigahertz.
  • Niobium nitride is also used in absorbing anti-reflective coatings.

Safety

Niobium nitride reacts with water to produce ammonia gas, a hazardous by-product.

References

Further reading



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