MATERIAL SAFETY DATA SHEET 01950 Pg. 1
Issued: 11/19/07
1. Chemical Product and Contact Information
LECOCEL and
Product Name: Part Numbers:
LECOCEL III 763-026
Accelerator 763-027
LECO Corporation 763-028-500
763-263
3000 Lakeview
763-266
St. Joseph, Michigan 49085
Information: 269-983-5531
Chemtrec: 800-424-9300
(Chemtrec Int'l: 703-527-3887)
2. Composition/Information on Ingredients
OSHA Typical %
Component CAS No. STEL (mg/m3) TWA (mg/m3) by Weight
Tungsten 7440-33-7 10 5 (as insoluble compounds) > 99
3 1 (as soluble compounds)
3. Hazard Identification
EMERGENCY OVERVIEW
No unusual spill hazard, minimal health risk. Gray to dark gray powder.
Potential Health Effects
EYES: May cause irritation.
SKIN: May cause skin irritation.
INHALATION: May or may not cause transient or permanent lung damage.
INGESTION: Not available.
MEDICAL CONDITIONS AGGRAVATED: Exposure to tungsten dust or fume may aggravate
chronic respiratory disease.
CHRONIC OVEREXPOSURE: Not known. Periodic medical examinations are recommended for
individuals regularly exposed to dust.
ACUTE OVEREXPOSURE: Inhalation and skin effects generally occur in conjunction with
exposure to other dusts.
CARCINOGENICITY: None.
P/N: 763-026
MATERIAL SAFETY DATA SHEET 01950 Pg. 2
4. First Aid Measures
EYES: Flush with a large amount of water for 15 minutes. If irritation occurs, seek medical
attention.
SKIN: Wash with soap and water. If irritation occurs, seek medical attention.
INHALATION: Remove from exposure. If necessary aid breathing and seek medical attention.
INGESTION: Seek medical attention.
5. Fire Fighting Measures
FLAMMABLE PROPERTIES: Non-flammable.
Flash Point: Not available. Method Used: Not applicable.
Flammable Limits (% by Volume in Air):
Lower: None. Upper: None.
AUTO-IGNITION TEMPERATURE: Not applicable.
HAZARDOUS COMBUSTION PRODUCTS: When tungsten burns in air it forms tungsten trioxide
which sublimes above 1382掳 F. (750掳 C.).
EXTINGUISHING MEDIA: Class D fire extinguishing agents, dry powder.
FIREFIGHTING INSTRUCTIONS: Wear a self-contained breathing apparatus. Under abnormal
conditions, tungsten powder may present a fire hazard depending upon particle size, dispersion
and exposure to an ignition source. This is not expected under normal conditions. Tungsten
powder, particularly powder less than 1 micron (FSSS), can be ignited in air by friction during
blending, milling, etc., if overblended, overmilled, etc. Fine powders may ignite spontaneously
in air.
6. Accidental Release Measures
SMALL/LARGE SPILL: Avoid dust generation. Do not cause material to become airborne.
Provide adequate ventilation. If TLV is exceeded, clean-up personnel need NIOSH-approved
dust respirators. Vacuum (with appropriate filter to prevent airborne dust levels which exceed
TLV) or wet clean-up methods are recommended to reduce dust generation. Dispose of the
material in accordance with all Federal, State and Local Regulations. Contaminated material
may be sold for reclaim.
7. Handling and Storage
HANDLING: Maintain good housekeeping procedures to prevent dust accumulation.
STORAGE: Keep container closed.
8. Exposure Controls/Personal Protection
ENGINEERING CONTROLS: General and local ventilation is recommended.
RESPIRATORY PROTECTION: A NIOSH-approved dust respirator is required if TLV is
exceeded.
SKIN AND HAND PROTECTION: Protective gloves are recommended.
EYE AND FACE PROTECTION: Safety glasses are recommended.
OTHER PROTECTIVE EQUIPMENT: None under normal conditions.
P/N: 763-026
MATERIAL SAFETY DATA SHEET 01950 Pg. 3
9. Physical and Chemical Properties
APPEARANCE: Gray to dark gray powder.
BOILING POINT: 10652掳 F. (5900掳 C.)
FREEZE-MELT POINT: 6170掳 F. (3410掳 C.)
VAPOR PRESSURE (mm): Not applicable at 77掳 F. (25掳 C.).
VAPOR DENSITY (air = 1): Not applicable.
SOLUBILITY IN WATER: Insoluble.
SPECIFIC GRAVITY: 14.5-16.0
pH: Not applicable.
ODOR: None.
PERCENT VOLATILES: Not available.
EVAPORATION RATE (Butyl Acetate = 1): Not applicable.
10. Stability and Reactivity
CHEMICAL STABILITY: Stable.
INCOMPATIBILITY: Tungsten is very slightly soluble in nitric acid, sulfuric acid and aqua regia.
It is soluble in a mixture of hydrofluoric acid and nitric acid. Vigorous reaction with bromine
trifluoride. Lead oxide mixed with tungsten becomes incandescent upon heating. Tungsten
becomes incandescent in cold fluorine. Iodine pentafluoride reacts spontaneously with tungsten
with incandescence. Avoid oxidizers.
HAZARDOUS DECOMPOSITION PRODUCTS: None.
HAZARDOUS POLYMERIZATION: None.
11. Toxicological Information
None reported.
12. Ecological Information
Not available.
13. Disposal Consideration
Dispose of the material in accordance with all Federal, State and Local Regulations. Contaminated
material may be sold for reclaim.
14. Transportation Information
U.S.A. DOT: Not regulated.
P/N: 763-026
MATERIAL SAFETY DATA SHEET 01950 Pg. 4
15. Regulatory Information
U.S. FEDERAL REGULATIONS:
TSCA STATUS: On Toxic Substance Control Inventory.
CERCLA REPORTABLE QUANTITY: None.
SARA TITLE III:
Section 302 Extremely Hazardous Substances: None.
Section 311/312 Hazardous Categories: Acute, Chronic.
Section 313 Toxic Chemicals: None.
RCRA STATUS: Not regulated
INTERNATIONAL REGULATIONS:
CANADIAN WHMIS: Not regulated.
RISK/SAFETY PHRASES:
R36/37/38-Irritating to eyes, respiratory system and skin.
S7/9-Keep container tightly closed and in a well ventilated place.
S36/37/39-Wear suitable protective clothing, gloves and eye/face protection.
S45-In case of accident or if you feel unwell seek medical advice. Show label if possible.
16. Other Information
HMIS HAZARD RATING: Health = 1, Fire = 0, Reactivity = 0
Prepared By:
Jason Whitt
Information herein is given in good faith as authoritative and valid; however, no warranty, expressed
or implied can be made.
P/N: 763-026
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