Product ID:TUNGSTEN METAL
MSDS Date:01/15/1991
FSC:9650
NIIN:00N019680
MSDS Number: BLHNK

THERMACOTE WELCO

HWY 161 - YORK RD
KINGS MOUNTAIN, NC 28086
US

Emergency Phone: 704-739-6421

Info Phone: 704-739-6421

Cage: 0AES5

THERMACOTE WELCO CO

KINGS MOUNTAIN, NC 28086 US

Cage: 0AES5

TUNGSTEN

CAS: 7440-33-7

RTECS: YO7175000

Fraction By Weight: >99%

OSHA PEL 5 MG/M3/ 10 STEL

ACGIH TLV: 5 MG/M3/10 STEL;9192

WITH TUNGSTEN WITH INCANDESCENCE.

RTECS: 9999999ZZ

WORK SHIFT. DO NOT SHAKE CLTHG, RAGS, OR OTHER

RTECS: 9999999ZZ

OR VACUUMING (WITH APPROPRIATE FILTERS) THE

RTECS: 9999999ZZ

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:YES Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INHAL: MAY OR MAY NOT CAUSE TRANSIENT
OR PERMANENT LUNG DAMAGE. SKIN: DUST MAY CAUSE IRRITATION. HOWEVER,
THESE EFFECTS ARE GENERALLY FOUND ONLY WHEN THERE IS CONCURRENT
EXPOSURE TO OTHER DUST(S).
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:SEE HEALTH HAZARDS.
Medical Cond Aggravated by Exposure:EXPOSURE TO TUNGSTEN DUST OR FUME
MAY AGGRAVATE CHRONIC RESPIRATORY DISEASE.

First Aid:NORMAL FIRST AID FOR ACCIDENTAL CUTS, ABRASIONS, BRUISES,
PUNCTURE WOUNDS, ETC. THE FOLLOWING IS FOR PURE TUNGSTEN DUST/FUME
ONLY: SKIN: WASH W/SOAP & WATER. IF IRRIT OCCURS, SEEK MED ATTN.
EYE: FLUSH W/A LARGE AMT OF WATER FOR A MINIMUM OF 15 MIN. IF
IRRIT OCCURS, SEEK MED ATTN. INHAL: REMOVE FROM EXPOSURE. IF
NECESSARY, AID BRTHG & SEEK MED ATTN. INGEST: SEEK MED ATTN.

Extinguishing Media:CLASS D FIRE EXTINGUISER.
Fire Fighting Procedures:WEAR A SELF-CONTAINED BREATHING APPARATUS.
Unusual Fire/Explosion Hazard:WHEN HEATED IN AIR ABOVE 750C, TUNGSTEN
TRIOXIDE SUBLIMES. TUNGSTEN DUST (FROM GRINDING) MAY PRESENT A MOD
FIRE HAZ. A FIRE HAZ FROM TUNGSTEN WROUGHT(SUPP DATA)

Spill Release Procedures:NONE SPECIFIED BY MANUFACTURER.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:MAINTAIN GOOD HOUSEKEEPING PROC TO
PVNT DUST ACCUM FROM GRINDING, ETC. PERIODIC MED EXAMINATIONS ARE
RECOMD FOR INDIVIDUALS REGULARLY EXPOSED TO DUST.
Other Precautions:MISTS FROM WET GRINDING/CUTTING MAY CONTAIN TUNGSTEN
PARTICLES; IF TLV IS EXCEEDED, WEAR NIOSH/MSHA APPRVD RESPIRATOR.
WASH HANDS THOROUGHLY AFTER HANDLING DUST, BEFORE EATING OR
SMOKING. WASH SKIN EX POSED TO DUST AT THE END OF (ING 3)

Respiratory Protection:NOT NEEDED ON WROUGHT PRODUCTS. MAY BE REQUIRED
DURING GRINDING, HEATING IN AIR, CUTTING, ETC. IF THE TLV IN AIR IS
EXCEEDED, WEAR NIOSH/MSHA APPROVED DUST RESPIRATOR.
Ventilation:NORMAL. NONE REQUIRED FOR WROUGHT PRODUCTS AS SUPPLIED.
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:CHEMICAL WORKERS GOGGLES .
Work Hygienic Practices:WASH HANDS THOROUGHLY AFTER HANDLING DUST,
BEFORE EATING OR SMOKING. WASH SKIN EXPOSED TO DUST AT THE END OF
WORK SHIFT.
Supplemental Safety and Health
EXPLO HAZ: PRODS IS NOT EXPECTED. TUNGSTEN WROUGHT PRODS DO NOT READILY
BURN. MATLS TO AVOID: ACID & NITRIC ACID. AVOID OXIDIZERS. VIGOROUS
RXN W/BROMINE TRIFLUORIDE. LEAD OXIDE MIXED W/ TUNGSTEN BECO MES
INCANDESCENT UPON HEATING. TUNGSTENBECOMES INCANDESCENT IN COLD
FLUORINE. IODINE PENTAFLUORIDE REACTS SPONT (ING 2)

HCC:N1
Boiling Pt:B.P. Text:10652F
Melt/Freeze Pt:M.P/F.P Text:6170F,3410C
Spec Gravity:19.3
Solubility in Water:INSOLUBLE
Appearance and Odor:STEEL-GRAY TO TIN-WHITE METAL. NO ODOR.

Stability Indicator/Materials to Avoid:YES
VERY SLIGHTLY SOLUBLE IN NITRIC ACID, SULFURIC ACID, & AQUA REGIA. IT
IS SOLUBLE IN A MIX OF HYDROFLUORIC (SUPP DATA)
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:NO HAZARDOUS DECOMPOSITION PRODUCTS.

Waste Disposal Methods:DISPOSE OF THE MATL FOLLOWING ALL FEDERAL,
STATE, AND LOCAL REGULATIONS. TUNGSTEN SCRAP, DUST, AND RECOVERED
FUME HAVE VALUE.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.