Product ID:TUNGSTEN WELDING ELECTRODES (PURE)
MSDS Date:03/01/1992
FSC:3439
NIIN:00-814-6029
MSDS Number: BHJKB

Emergency Phone: 205-837-0285

Info Phone: 205-837-1311

Cage: 3G120

Telephone: 205-837-0285

Cage: 3G120

TUNGSTEN

CAS: 7440-33-7

RTECS: YO7175000

Fraction By Weight: >99.9%

OSHA PEL 5 MG/M3/ 10 STEL

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

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:YES IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INHALATION OF TUNGSTEN DUSTS, FUME, OR
MIST MAY OR MAY NOT CAUSE TRANSIENT OR PERMANENT LUNG DAMAGE. THE
SKIN MAY BE IRRITATED BY DUST, FUME OR MISTS CONTAINING TUNGSTEN.
THE LIGHT FROM THE ARC CAN CA USE EYE DAMAGE. ELECTRIC SHOCK CAN
KILL. NO INHALATION HAZARD IS POSSIBLE FROM SOLID, FORMED PARTS.
Explanation of Carcinogenicity:THORIUM OXIDE: GROUP 1 (NTP)
Effects of Overexposure:NO SPECIFIC DATA, TESTING OR INFORMATION HAS
BEEN FOUND FOR THE CHEMICAL COMPOUND(S) THAT COMPRISE THIS PRODUCT.
ACCORDINGLY, GENERAL SOURCE COMMENTS ARE MADE BELOW FOR THE
ELEMENTS INCLUDED IN ITS CO MPOSITION. THORIUM & ITS ISOTOPES ARE
TOXIC RADIOLOGICALLY, BUT THE CHEMICAL TOXICITY OF THORIUM IS L
LOW.
Medical Cond Aggravated by Exposure:CHRONIC RESPIRATORY DISEASES &
ASTHMA MAY BE AGGRAVATED BY EXPOSURE TO DUST, FUME OR MIST. OTHER
CONDITIONS THAT MAY BE AGGRAVATED ARE NOT KNOWN & WILL DEPEND UPON
CONDITIONS DURING ELECTRODE USE.

First Aid:SKIN:WASH AREA OF CONTACT W/SOAP & WATER. IF IRRITATION OR
RASH OCCURS. SEEK MD. EYE:WASH W/A LARGE AMOUNT OF WATER FOR AT
LEAST 15 MINS. IF IRRITATION OCCURS, SEEK MD. INHAL:REMOVE FROM
EXPOSURE. SEE K MD. IF NECESSARY AID BREATHING. INGEST:SEEK MD.
OTHER:WOUNDS CONTAMINATED W/DUST, FUME OR MIST SHOULD BE
IMMEDIATELY & THOROUGHLY CLEANED.

Extinguishing Media:FOR THE SURROUNDING FIRE. FOR TUNGSTEN DUST FIRES,
USE CLASS D EXTINGUISHING MEDIA & DRY POWDERS.
Fire Fighting Procedures:FOR A TUNGSTEN DUST FIRE CONFINED TO SMALL
AREA, USE A NIOSH/MSHA APPROVED SCBA. FOR A LARGE FIRE,
FIREFIGHTERS SHOULD USE SELF-CONTAINED BREATHING APPARATUS.
Unusual Fire/Explosion Hazard:WHEN TUNGSTEN IS HEATED IN AIR, TUNGSTEN
TRIOXIDE (TWA 5 MG(AS W)/M3) BEGINS TO SUBLIME ABOVE 750C.

Spill Release Procedures:DISPOSE OF MATERIAL FOLLOWING ALL APPLICABLE
REGULATIONS. TUNGSTEN SCRAP & DUST HAVE VALUE & CAN BE RECLAIMED.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:MAINTIAN GOOD HOUSEKEEPING PROCEDURES
TO PVNT DUST ACCUM FROM GRINDING, ETC.
Other Precautions:FOLLOW ALL PROCEDURES IN ANSIZ49.1 & OSHA 29CFR1910.
PERIODIC MEDICAL EXAMINATIONS ARE RECOM FOR INDIVIDUALS REGULARLY
EXPOSED TO DUST OR FUME. NOTE:TUNGSTEN, THORIUM OXIDE & AZIRCONLUM
OXIDE WERE REP ORTED IN THE EPA TSCA INVENTORY 1980.

Respiratory Protection:NONE NEEDED FOR ELECTRODES AS RECD. REQD DURING
GRINDING (DRESSING ELECTRODE) OR WELDING, IF THE LIMITS ARE
EXCEEDED. FOR THORIATED ELECTRODES, USE A DUST MASK (FOR
RADIONUCIDE PARTICLES), SPEC CANIST ER GAS MASK OR SUPPLIED AIR
RESPIRATOR.
Ventilation:LOCAL VENTILATION IS RECOMMENDED FOR DRESSING THE
ELECTRODES. FOR WELDING FOLLOW THE OSHA REQUIREMENTS IN 29CFR1910.
Protective Gloves:IMPERVIOUS GLOVES.
Eye Protection:FACE PROT W/APPROP WELDING SHIELD.
Other Protective Equipment:WHEN WELDING, WEAR FLAME RETARDANT CLTHG
SUCH THAT SKIN IS NOT EXPOSED.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
NONE

HCC:N1
Boiling Pt:B.P. Text:10652F,5900
Melt/Freeze Pt:M.P/F.P Text:6152F,3400C
Spec Gravity:19
Solubility in Water:INSOLUBLE
Appearance and Odor:TIN-WHITE METAL; NO ODOR.

Stability Indicator/Materials to Avoid:YES
AVOID OXIDIZERS ESP AT ELEVATED TEMPS. AVOID STRONG ACIDS, BROMINE
TRIFLUORIDE, FLUORINE, IODINE (SEE INGRED 3)
Stability Condition to Avoid:AVOID OXIDIZERS ESPECIALLY AT ELEVATED
TEMPERATURES.
Hazardous Decomposition Products:NONE.

Waste Disposal Methods:DISPOSAL MUST BE IN ACCORDANCE W/FEDERAL, STATE
& LOCAL REGULATIONS.

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.