Product ID:LECOCEL II HP, 502-294
MSDS Date:08/01/1995
FSC:6810
NIIN:00N082477
MSDS Number: CGCZG

LECO CORPORATION

3000 LAKEVIEW
ST JOSEPH, MI 49085
US

Emergency Phone: 800-424-9300(CHEMTREC)

Info Phone: 616-983-5531

Preparer: DUANE OSTENSON

Cage: FO436

LECO CORPORATION

NK/ ST. JOSEPH, MI 49085 US

Telephone: (616) 983-5531

Cage: FO436

TUNGSTEN

CAS: 7440-33-7

RTECS: YO7175000

Fraction By Weight: <50%

OSHA PEL N/K

ACGIH TLV: 1 MG/M3/3 STEL; 9495

TIN

CAS: 7440-31-5

RTECS: XP7320000

Fraction By Weight: >50%

OSHA PEL 2 MG/M3

ACGIH TLV: 2 MG/M3; 9495

IN AIR BY FRICTION DURING BLENDING, MILLING, ETC. IF

RTECS: 9999999ZZ

IGNITE SPONTANEOUSLY IN AIR.

RTECS: 9999999ZZ

HYDROFLUORIC ACID & NITRIC ACID. VIGOROUS

RTECS: 9999999ZZ

BECOMES INCANDESCENT UPON HEATING. TUNGSTEN BECOMES

RTECS: 9999999ZZ

REACTS SPONTANEOUSLY W/TUNGSTEN W/INCANDESCENCE.

RTECS: 9999999ZZ

METHODS ARE RECOMMENDED TO REDUCE DUST

RTECS: 9999999ZZ

FEDERAL, STATE AND LOCAL REGULATIONS. CONTAMINATED

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:EYES:MAY CAUSE IRRIT. SKIN:MAY CAUSE
SKIN IRRIT. INHAL:TUNGSTEN MAY/MAY NOT CAUSE TRANSIENT/PERMANENT
LUNG DMG. INHAL OF INORGANIC TIN FUMES/DUST MAY CAUSE AN APPARENT
BENIGN PNEUMOCONIOSIS CALLED STA NNOSIS WHICH IS REPORTED NOT TO BE
DISABLING. INGEST:NOT AVAIL. ACUTE: INHAL & SKIN EFTS (EFTS OF
OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT.
Effects of Overexposure:HLTH HAZ:GENERALLY OCCUR IN CONJUNCTION WITH
EXPOSURE TO OTHER DUSTS. CHRONIC: NOT KNOWN. PERIODIC MEDICAL
EXAMINATIONS ARE RECOMMENDED FOR INDIVIDUALS REGULARLY EXPOSED TO
DUST.
Medical Cond Aggravated by Exposure:EXPOSURE TO TUNGSTEN DUST OR FUME
MAY AGGRAVATE CHRONIC RESPIRATORY DISEASE.

First Aid:EYES: FLUSH WITH LARGE AMOUNTS OF WATER FOR AT LEAST 15
MINUTES. IF IRRITATION OCCURS, SEEK MEDICAL ATTENTION. SKIN: VACUUM
OFF EXCESS DUST. WASH WITH SOAP AND WATER. IF IRRITATION OCCURS,
SEEK MEDICA L ATTENTION. AVOID BLOWING PARTICULATE IN ATMOSPHERE.
INHALATION: REMOVE FROM EXPOSURE. IF NECESSARY AID BREATHING AND
SEEK MEDICAL ATTENTION. INGESTION: SEEK MEDICAL ATTENTION.

Lower Limits:NONE
Upper Limits:NONE
Extinguishing Media:CLASS D FIRE EXTINGUISHING AGENTS, DRY POWDER.
Fire Fighting Procedures:USE NIOSH APPRVD SCBA & FULL PROT EQUIP .
UNDER ABNORMAL CNDTNS, TUNGSTEN POWDER MAY PRESENT A FIRE HAZ
DEPENDING UPON PARTICLE SIZE, (SUPDAT)
Unusual Fire/Explosion Hazard:HAZ COMBUST PRODS: WHEN TUNGSTEN BURNS IN
AIR IT FORMS TUNGSTEN TRIOXIDE WHICH SUBLIMES ABOVE 1382 F (750 C).

Spill Release Procedures:AVOID DUST GENERATION. DO NOT CUASE MATL TO
BECOME AIRBORNE. PROVIDE ADEQ VENT. IF TLV IS EXCEEDED, CLEAN-UP
PERSONNEL NEED NIOSH-APPRVD DUST RESPS. VACUUM (W/APPROP FILTER TO
PVNT AIRBORNE DUST LEVEL S WHICH EXCEED TLV) OR WET CLEAN-UP (ING
8)
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:KEEP CONTAINER CLOSED. MAINTAIN GOOD
HOUSEKEEPING PROCEDURES TO PREVENT DUST ACCUMULATION.
Other Precautions:NONE SPECIFIED BY MANUFACTURER.

Respiratory Protection:A NIOSH-APPROVED DUST RESPIRATOR IS REQUIRED IF
TLV IS EXCEEDED.
Ventilation:GENERAL AND LOCAL VENTILATION IS RECOMMENDED.
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:ANSI APPROVED CHEM WORKERS GOGGS .
Other Protective Equipment:EYE WASH FOUNTAIN & DELUGE SHOWER WHICH MEET
ANSI DESIGN CRITERIA .
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
BP: TUNGSTEN: 10652F, 5900C; TIN: 5018F, 2770C. MP: TUNGSTEN: 6170F,
3410C; TIN: 450F, 232C. SPEC GRAV: TUNGSTEN: 19.3; TIN: 7.3. FIRE
FIGHT PROC: DISPERSION & EXPOSURE TO AN IGNITION SOURCE. THIS IS
NOT EXPECTED UNDER NORMAL CONDITIONS. TUNGSTEN POWDER, PARTICULARLY
LESS THAN 1 MICRON (FSSS), CAN BE IGNITED (ING 3)

Boiling Pt:B.P. Text:SUPDAT
Melt/Freeze Pt:M.P/F.P Text:SUPDAT
Vapor Pres:N/A @ 77F
Spec Gravity:SUPDAT
Solubility in Water:INSOLUBLE.
Appearance and Odor:GRAY TO DARK GRAY POWDER; NO ODOR.

Stability Indicator/Materials to Avoid:YES
TUNGSTEN IS VERY SLIGHTLY SOLUBLE IN NITRIC ACID, SULFURIC ACID & AQUA
REGIA. IT IS SOLUBLE IN A MIXTURE OF (ING 5)
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:NONE.

Waste Disposal Methods:DISPOSE OF THE MATERIAL IN ACCORDANCE WITH ALL
FEDERAL, STATE AND LOCAL REGULATIONS. CONTAMINATED MATERIAL MAY BE
SOLD FOR RECLAIM.

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