Chromium nitride

  • Dichromium nitride
  • Chromium subnitride
Formula
Cr2N
Description
Odorless dark powder.

Registry Numbers and Inventories.
CAS
12053-27-9
EC (EINECS/ELINCS)
235-002-2
R: 22 42/43
S: 24 37 45 60
Canada DSL/NDSL
NDSL
US TSCA
Listed
Korea ECL
Listed

Properties.
Formula
Cr2N
Formula mass
118.00
Solubility in water
Insoluble

Hazards and Protection.
Storage
Keep container tightly sealed. Store in cool, dry conditions in well sealed containers.
Protection
Protective work clothing. Chemical protective gloves. Safety glasses or goggles.
Stability
Decomposition will not occur if used and stored according to specifications.
Incompatibilities
Acids, oxidizing agents.
Decomposition
Toxic metal oxide fume. Nitrogen oxides.

Fire.
Fire fighting
Extinguish using dry chemical powder. Do not use water. Wear self-contained respirator. Wear fully protective impervious suit.
Combustion products
Oxides of nitrogen, chromium oxide fumes.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure limit(s)
NIOSH PEL: 0.5 mg/m3 (as Cr)
Exposure effects
Chromium powder, chromium (II) and chromium (III) compounds may cause nausea, diarrhea, vomiting, skin and eye irritation and pneumoconiosis. Although less likely than Cr(VI) compounds, the NTP considers all chromium to be potentially carcinogenic.
   Inhalation
Causes irritation. Sensitization possible.
   Skin
Causes irritation. Sensitization possible.
   Eyes
Causes irritation

First aid
 
   Ingestion
Seek immediate medical treatment.
   Inhalation
Supply fresh air. If required, provide artificial respiration. Keep patient warm. Seek immediate medical advice.
   Skin
Immediately wash with water and soap and rinse thoroughly. Seek immediate medical advice.
   Eyes
Rinse opened eye for several minutes under running water. Then consult a doctor.

Transport.