Hafnium carbide

  • Hafnium monocarbide
Formula
HfC
Description
Odorless gray powder.

Registry Numbers and Inventories.
CAS
12069-85-1
EC (EINECS/ELINCS)
235-114-1
UN (DOT)
3178
Canada DSL/NDSL
NDSL
US TSCA
Listed
Korea ECL
Listed

Properties.
Formula
CHf
Formula mass
190.50
Melting point, °C
4160
Density
12.2 g/cm3 (20 C)
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
Oxidizing agents.

Fire.
Fire fighting
Extinguish with special powder for metal fires. Do not use water. Wear self-contained respirator. Wear fully protective impervious suit.
Fire potential
Highly flammable.
Health
1
 
Flammability
1
 
 
Reactivity
1
 

Health.
Exposure limit(s)
NIOSH PEL: 0.5 mg/m3 (as Hf)
Exposure effects
Hafnium and hafnium compounds may be irritating to the skin and eyes. There are reports of liver damage from hafnium exposure.

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.
UN number
3178
Response guide
Hazard class
4.1
Packing Group
III