- Hafnium monocarbide
Odorless gray powder.
Registry Numbers and Inventories.
Melting point, °C
12.2 g/cm3 (20 C)
Solubility in water
Hazards and Protection.
Keep container tightly sealed. Store in cool, dry conditions in well sealed containers.
Protective work clothing. Chemical protective gloves. Safety glasses or goggles.
Decomposition will not occur if used and stored according to specifications.
Extinguish with special powder for metal fires. Do not use water. Wear self-contained respirator. Wear fully protective impervious suit.
NIOSH PEL: 0.5 mg/m3 (as Hf)
Hafnium and hafnium compounds may be irritating to the skin and eyes. There are reports of liver damage from hafnium exposure.
Seek immediate medical treatment.
Supply fresh air. If required, provide artificial respiration. Keep patient warm. Seek immediate medical advice.
Immediately wash with water and soap and rinse thoroughly. Seek immediate medical advice.
Rinse opened eye for several minutes under running water. Then consult a doctor.