MATERIAL SAFETY DATA SHEET
I PRODUCT IDENTIFICATION
Trade Name: Niobium Carbide Chemical Family: Carbide
Formula: NbC CAS #: 12069-94-2
II HAZARDOUS INGREDIENTS
Percent by Weight: 100 OSHA/PEL: N/A
ACGIH/TLV: 5 mg/cubic meter
III PHYSICAL DATA
Boiling Point 760 mm Hg: Nonvolatile Specific Gravity (Water=1): 7.6
Vapor Density (Air = 1): Nonvolatile Vapor Pressure (mm Hg): Nonvolatile
% Volatile by Volume: Nonvolatile % Volatile by Weight: Nonvolatile
Appearance and Odor: Grey-Dark brown odorless powder. Solubility in H2O: Insoluble
IV FIRE AND EXPLOSION HAZARDS DATA
Flash Point (Method Used): NbC may burn in air at 200-800 oC, depending on grain size.
Extinguishing Media: Class 鈥淒鈥?. Fire extinguishing media (dry sodium chloride, etc.) Confine dust/powder to avoid spreading. Do
not use water.
Special Fire Fighting Procedures: For a powder fire confined to a small area, use a respirator approved for toxic dust and fumes.
For a large fire involving this material, fire fighters should use self-contained breathing apparatus, especially when other materials like
plastics are involved in the fire.
Unusual Fire and Explosion Hazards: Fine powder/dust may be a fire or explosion hazard. Keep away from heat, open flames and
V HEALTH HAZARD INFORMATION
Routes of Entry: Inhalation, Ingestion, Skin and Eye.
Effects of Overexposure: Exposure to powder/dust may cause eye and mucous membranes irritation. No chronic health effects
Carcinogenic Assessment (NTP Annual report IARC monographs, others): This material has not been identified as known or
suspected carcinogenic by NTP, IARC, or OSHA.
EMERGENCY AND FIRST AID PROCEDURES:
EYES: Flush with copious amounts of water for 15 minutes. If irritation persists seek medical attention.
SKIN: Wash with soap and water and a large volume of water. Seek medical assistance as necessary, especially if irritation develops
INHALATION: If any symptoms of pulmonary develop, remove from exposure and seek medical attention.
INGESTION: If substantial quantities are swallowed dilute with a large amount of water
VI REACTIVITY DATA
Incompatibility (Materials to Avoid): HF, Fluorine, Bromine and strong Alkali
Hazardous Decomposition or Products: None
Hazardous Polymerization: Will not Occur
VII SPILL OR LEAK PROCEDURES
Steps to Be Taken in Case Material Is Released or Spilled: Remove all sources of ignition. Do not generate dust during clean-up.
Use only cleaning equipment that can be grounded or is explosion.
Waste Disposal Method: Conform to all solid waste labeling, shipping and disposal regulations. Waste material may have some
salvage value. May be sold as scrap for reclaim.
VIII SPECIAL PROTECTION INFORMATION
Respiratory Protection (Specify Type): Use an appropriate NIOSH approved respirator specified by safety engineer.
Ventilation: Use local exhaust ventilation which is adequate to limit personal exposure to levels which do not exceed the TLV.
Eye Protection: Safety glasses or goggles are recommended.
Protective Gloves: Gloves are recommended when contact is likely
Other Protective Clothing or Equipment: N/A
IX SPECIAL PRECAUTIONS
Other Handling and Storage Conditions: Maintain good housekeeping procedures to prevent accumulation of dust. Use clean-up
methods which minimize dust generation such as vacuuming or wet clean-up. If airborne dust is generated, use an appropriate
Other Precautions: Avoid dust inhalation.
Issued by: S. Dierks
Date: June 1991