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Chromium nitride information


Chromium nitride
Chromium nitride
Names
IUPAC name
Chromium nitride
Other names
Chromium(III) nitride
Identifiers
CAS Number
  • 24094-93-7 checkY
3D model (JSmol)
  • Interactive image
ChemSpider
  • 81581 checkY
ECHA InfoCard 100.041.819 Edit this at Wikidata
EC Number
  • 246-016-3
PubChem CID
  • 90362
UNII
  • W46I1HZ91F checkY
InChI
  • InChI=1S/Cr.N checkY
    Key: CXOWYMLTGOFURZ-UHFFFAOYSA-N checkY
  • InChI=1/Cr.N/rCrN/c1-2
    Key: CXOWYMLTGOFURZ-NIYUYJRQAK
SMILES
  • [Cr]#N
Properties
Chemical formula
CrN
Molar mass 66.003 g/mol
Appearance Black powder
Density 5.9 g/cm3 [1]
Melting point 1770 ˚C (decomp.)[2]
Solubility in water
Insoluble[3]
Thermochemistry
Std molar
entropy (S298)
37.75 J K−1 mol−1 [4]
Std enthalpy of
formation fH298)
−117.15 kJ/mol [4]
Hazards
Flash point Non-flammable
NIOSH (US health exposure limits):
PEL (Permissible)
TWA 1 mg/m3[5]
REL (Recommended)
TWA 0.5 mg/m3[5]
IDLH (Immediate danger)
250 mg/m3[5]
Related compounds
Related compounds
Dichromium nitride
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

Chromium nitride is a chemical compound of chromium and nitrogen with the formula CrN. It is very hard, and is extremely resistant to corrosion. It is an interstitial compound, with nitrogen atoms occupying the octahedral holes in the chromium lattice:[2] as such, it is not strictly a chromium(III) compound nor does it contain nitride ions (N3−). Chromium forms a second interstitial nitride, dichromium nitride, Cr2N.

  1. ^ Chromium(III) nitride at webelements.com
  2. ^ a b Greenwood, Norman N.; Earnshaw, Alan (1984). Chemistry of the Elements. Oxford: Pergamon Press. p. 480. ISBN 978-0-08-022057-4.
  3. ^ http://www.alfa-chemcat.com/daten_msds/D/12149_-_D.pdf[permanent dead link]
  4. ^ a b NIST Chemistry Webbook
  5. ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0141". National Institute for Occupational Safety and Health (NIOSH).

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