MATERIAL SAFETY DATA SHEET
I. PRODUCT IDENTIFICATION
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Trade Name: Tantalum Carbide
Chemical Family: Carbide
CAS #: 12070-06-3
II. HAZARDOUS INGREDIENTS
Hazardous Component: Tantalum Carbide
OSHA/PEL: 5 mg(Ta)/m3
ACGIH/TLV: 5 mg(Ta)/m3
HMIS Ratings: Health: 1 Flammability: 2 Reactivity: 0
III. PHYSICAL DATA
Boiling Point 760 mm Hg: 5500 oC
Freezing/Melting Point: 3880 oC
Specific Gravity: 13.9 g/cc
Vapor Pressure: N/E or N/A
Vapor Density: N/A
Solubility in H2O: Insoluble
Appearance and Odor: Black to grey powder, no odor
% Volatiles: N/A
IV. FIRE AND EXPLOSION HAZARDS DATA
Flash Point (Method Used): N/A
Autoignition Temperature: No Data
Flammable Limits: Upper: N/A Lower: N/A
Extinguishing Media: Powder Fires: Do not use water. Use special powder for metal fires. Other: Use suitable extinguishing media for surrounding material and type of fire.
Special Fire Fighting Procedures: Firefighters must wear full face, self-contained breathing apparatus, flame and chemical resistant clothing, hats, boots and gloves.
Unusual Fire and Explosion Hazards: Contact with acids may evolve flammable hydrogen gas.
V. HEALTH HAZARD INFORMATION
Effects of Exposure:
To the best of our knowledge the chemical, physical and toxicological properties of tantalum carbide have not been thoroughly investigated and recorded.
Some industrial skin injuries from tantalum have been reported. However, systemic industrial poisoning is apparently not known. So far experimental work has indicated that tantalum does not produce any unfavorable effects upon the body and the use of tantalum in human surgery has received favorable comment. Some tantalum compounds have been suspected of causing skin irritation and mild fibrosis of the lungs.
In the form of graphite (which is one of the common forms of carbon) it can cause a dust irritation, particularly to the eyes. Carbon in the form of soot can cause conjunctivitis. It can also cause epithelial hyperplasia of cornea, as well as eczematous inflammation of eyelids. Some forms of carbon dust can cause irritation of eyes and mucous membranes. (Sax, Dangerous Properties of Industrial Materials)
Inhalation: Powders or dust may cause irritation to the respiratory tract and mucous membrane.
Ingestion: None known
Skin: May cause skin irritation on contact.
Eye: May cause irritation
Inhalation: None Known
Ingestion: None known
Skin: None known
Eye: None known
Medical Conditions Generally Aggravated by Exposure: None known.
Carcinogenicity: NTP: No IARC: No OSHA: No
EMERGENCY AND FIRST AID PROCEDURES:
INHALATION: Supply fresh air, provide artificial respiration if needed, keep patient warm and seek immediate medical attention.
INGESTION: Seek immediate medical attention.
SKIN: Remove contaminated clothing, wash with soap and water and rinse thoroughly. If irritation persists seek medical attention.
EYE: Immediately flush eyes, including under eyelids, with large amounts of water for at least 15 minutes. Call a physician.
VI. REACTIVITY DATA
Conditions to Avoid: None
Incompatibility (Material to Avoid): Oxidizing agents
Hazardous Decomposition Products: Carbon monoxide and carbon dioxide
Hazardous Polymerization: Will not occur
VII. SPILL OR LEAK PROCEDURES
Steps to Be Taken in Case Material Is Released or Spilled: Wear appropriate respiratory and protective equipment specified in section VIII. Isolate spill area and provide ventilation. Scoop or vacuum up spill using a high efficiency particulate absolute (HEPA) air filter and place in a closed container for proper disposal.
Waste Disposal: In accordance with Local, State and Federal Waste Disposal Regulations.
VIII. SPECIAL PROTECTION INFORMATION
Respiratory Protection: High efficiency particle respirator.
Ventilation: Use local exhaust to maintain concentrations at low exposure levels.
Protective Gloves: Rubber.
Eye/Face Protection: ANSI approved safety goggles.
Other Protective Clothing or Equipment: Protective gear suitable to prevent contamination.
IX. SPECIAL PRECAUTIONS
Precautions to Be Taken in Handling and Storage: Keep container tightly sealed. Store in a cool, dry, well-ventilated area. Store away from oxidizing agents.
Other Precautions: Keep ignition sources away. Protect against electrostatic charges. Fumes can combine with air to form an explosive mixture.
Work Practices: Implement engineering and work practice controls to reduce and maintain concentration of exposure at low levels. Use good housekeeping and sanitation practices. Do not use tobacco or food in work area. Wash thoroughly before eating and smoking. Do not blow dust off clothing or skin with compressed air. Maintain eyewash capable of sustained flushing, safety drench shower and facilities for washing.
Hazard Class: None
Hazard Class: 4.1
Identification Number: UN3178
Packing Group: III
Proper Shipping Name: Flammable solid, inorganic, n.o.s. (Tantalum carbide)
The above information is believed to be correct, but does not purport to be all inclusive and shall be used only as a guide. ESPI shall not be held liable for any damage resulting from handling or from contact with the above product.
Issued by: S. Dierks
Date: August 2006