MATERIAL SAFETY DATA SHEET




I. PRODUCT IDENTIFICATION


Manufacturer/Supplier:

ESPI Metals

1050 Benson Way, Ashland, OR 97520

Toll Free (800) 638-2581 * Fax (541) 488-8313

E-Mail: sales@espimetals.com

 

Trade Name:                    Tantalum Carbide

Chemical Family:             Carbide

Formula:                           TaC

CAS #:                               12070-06-3



II. HAZARDOUS INGREDIENTS

 

Hazardous Component:  Tantalum Carbide

%:                                     0-100

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)


Acute Effects:


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


Chronic Effects:


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


Stability: Stable

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.


DOT Regulations:

Solid Forms:

              Hazard Class:                   None

Powder:

              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