===================== Product Identification =====================
MSDS NAME:TUNGSTEN THORIA ALLOY
NIIN:00N077590
MSDS Number: CFPHB
=== Responsible Party ===
Company:TELEDYNE WAH CHANG HUNTSVILLE
Address:7300 HIGHWAY 20 WEST
City:HUNTSVILLE
State:AL
ZIP:35806
Country:US
Info Phone Num:205-837-1311
Emergency Phone Num:205-837-0285
CAGE:3G120
=== Contractor Identification ===
Company:TELEDYNE WAH CHANG
Address:7300 HIGHWAY 20 WEST
Box:City:HUNTSVILLE
State:AL
ZIP:35806-2052
Country:US
Phone:205-837-0285
CAGE:3G120
============= Composition/Information on Ingredients =============
Name:TUNGSTEN
CAS:7440-33-7
RTECS #:YO7175000
Fraction by Wt: >98%
OSHA PEL:5 MG/M3 (MFR)
ACGIH TLV:1 MG/M3;3 STEL
Name:THORIUM DIOXIDE; (THORIA) (SARA 313)
CAS:1314-20-1
RTECS #:XO6950000
Fraction by Wt: <2%
OSHA PEL:N/K
ACGIH TLV:N/K
Name:SUPDAT:REGS. OF PARTICULAR INTEREST ARE PARTS 20 & 40. PART
20 CONCERNS STDS FOR PROT AGAINST RADIA. PART 40 (ING 4)
RTECS #:9999999ZZ
Name:ING 3:CONCERNS DOMESTIC LICENSING OF SOURCE MATL. PLEASE
CONSULT THESE PUBLICATIONS FOR INFO ON REGS THAT MAY BE (ING 5)
RTECS #:9999999ZZ
Name:ING 4:SPECIFIC TO YOUR INDUSTRY/YOUR USE OF THIS PROD.
SPECIAL PRECS SHOULD BE OBSERVED IN ORDER TO MIN DUST THAT(ING 6)
RTECS #:9999999ZZ
Name:ING 5:MAY BE CREATED BY GRINDING/MACHINING. GENERATION OF
DUST/MISTS MAY PRESENT RADIOLOGICAL HLTH HAZ IF EXPOS (ING 7)
RTECS #:9999999ZZ
Name:ING 6:LIMS, AS SET BY OSHA, ACGIH/NRC, ARE EXCEEDED. ANY
DUST GENERATED, DURING GRINDING/MACHINING OPERATIONS, (ING 8)
RTECS #:9999999ZZ
Name:ING 7:MAY BE CONSIDERED SOURCE MATL, AS DEFINED BY NRC &
THEREFORE SUBJECT TO PROVISIONS OF 10CFR20 & 10CFR40. (ING 9)
RTECS #:9999999ZZ
Name:ING 8:MAINTAIN GOOD HOUSEKEEPING PROCS TO PVNT GENERATION
OF AIRBORNE DUST PARTICLES. AVOID DUST INHAL & DIRECT (ING 10)
RTECS #:9999999ZZ
Name:ING 9:SKIN CONTACT W/DUST.
RTECS #:9999999ZZ
Name:SPILL PROC:APPLICABLE LIMITS). IF AIRBORNE DUST IS
GENERATED, USE APPROPRIATE NIOSH APPROVED RESPIRATORY (ING 12)
RTECS #:9999999ZZ
Name:ING 11:PROTECTION EQUIPPED W/RADIONUCLIDE FILTERS.
RTECS #:9999999ZZ
===================== Hazards Identification =====================
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:INDUSTRIALLY, TUNGSTEN THORIA ALLOY
DOES NOT CONSTITUTE AN IMPORTANT HEALTH HAZARD. EXPOSURE IS RELATED
CHIEFLY TO DUST ARISING OUT OF GRINDING AND MACHINING OPERATIONS.
CHRONIC INHALATION OF DUST MAY CAUSE LUNG DAMAGE IN HUMANS.
TOXICOLOGICAL INFORMATION:HEAVY EXPOSURE TO DUST OR INGESTION OF
LARGE (EFTS OF OVEREXP)
Explanation of Carcinogenicity:THORIUM (DI)OXIDE: NTP 7TH ANNUAL REPORT
ON CARCINOGENS, 1994:KNOWN TO BE CARCINOGENIC. HUMAN:LIVER, APPLIC
SITE.
Effects of Overexposure:HLTH HAZ:AMTS OF SOL CMPDS PRDCES CHANGES IN
BODY WT, BEHAVIOR, BLOOD CELLS, CHOLINE ESTERASE ACTIVITY & SPERM
IN EXPTL ANIMALS. THORIATED TUNGSTEN SOLIDS DO NOT CONSTITUTE AN
IMPORTANT RADIOLOGICAL H LTH HAZ. HOWEVER, A RADIOLOGICAL HLTH HAZ
MAY EXIST IF MATL IS PRESENT IN A FORM THAT MAY BE INHALED OR
INGESTED.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.
======================= First Aid Measures =======================
Eyes:FLUSH W/LG AMTS OF WATER FOR AT LST 15 MINS. IF IRRIT
PERSISTS, SEEK MED ATTN. SKIN:WASH W/SOAP & WATER. IF IRRIT/RASH
OCCURS, ISOLATE FROM EXPOS. IF RASH PERSISTS, SEEK MED ATTN. WOUNDS
CONTAM W /DUST, FUME/MIST SHOULD BE THORO CLEANED IMMED. INHAL:MOVE
EXPOS PERS TO FRESH AIR. IF NEC, PERFORM ARTF RESP & SEEK MED ATTN.
INGEST:GET MED ATTN. GIVE LG QTYS OF WATER & INDUCE VOMIT. DO
NOT(SUPDAT)
===================== Fire Fighting Measures =====================
Extinguishing Media:USE CLASS D FIRE EXTINGUISHING AGENTS (DRY POWDER).
Fire Fighting Procedures:USE NIOSH APPROVED SCBA & FULL PROTECTIVE
EQUIPMENT .
Unusual Fire/Explosion Hazard:DUSTS MAY PRESENT FIRE/EXPLO HAZ UNDER
RARE FAVORING CNDTNS OF PARTICLE SIZE, DISPERSION & STRONG IGNIT
SOURCE. HOWEVER, THIS IS NOT EXPECTED TO BE PROB(SUPDAT)
================== Accidental Release Measures ==================
Spill Release Procedures:AS SOLID, THIS MATL POSES NO PROBS W/RELS OR
SPILLS. CLEAN UP USING METHS WHICH AVOID GENERATION OF DUSTS. SUCH
METHS INCL WET MOPPING/VACUUMING (ASSURING THAT VACUUM IS EQUIPPED
W/PROPER HEPA FILTER TO PVNT AIRBORNE DUST LEVELS WHICH EXCEED
(ING 11)
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.
====================== Handling and Storage ======================
Handling and Storage Precautions:TUNGSTEN TORCONIA ALLOY SOLIDS ARE, IN
GENERAL, SAFE MATERIALS TO HANDLE & USE UNDER ALMOST ALL COMMONLY
ENCOUNTERED ENVIRONMENTS.
Other Precautions:NOTE:THORIUM IS A NATRLY OCCURRING LOW LEVEL
RADIOACTIVE ELEMENT. THORIUM IS PRIMARILY AN ALPHA EMITTER.
DAUGHTERS IN DECAY CHAIN EMIT ALPHA, BETA & GAMMA RADIA.
RADIOACTIVE ELEMENTS ARE REGULATED BY NUCLEAR REGULATORY
COMMISSION. (SUPDAT)
============= Exposure Controls/Personal Protection =============
Respiratory Protection:USE AN APPROPRIATE NIOSH APPROVED RESPIRATOR
EQUIPPED W/RADIONUCLIDE FILTERS IF AIRBORNE DUST CONCENTRATIONS ARE
PRESENT & EXCEED APPROPRIATE LIMITS. ALL REQUIREMENTS SET FORTH IN
29 CFR 1910.134 MUST BE MET.
Ventilation:USE LOC EXHST VENT WHICH IS ADEQ TO LIM PERSONAL EXPOS TO
AIRBORNE DUST TO LEVELS WHICH DO NOT EXCEED APPROP (SUPP DATA)
Protective Gloves:IMPERVIOUS GLOVES .
Eye Protection:ANSI APPROVED CHEM WORKERS GOGGS .
Other Protective Equipment:ANSI APPROVED EYE WASH FOUNTAIN & DELUGE
SHOWER . PROT CLTHG IS REC DURING PROCESSES THAT MAY RSLT IN (SUPP
DATA)
Work Hygienic Practices:WASH HANDS THORO, IF EXPOS TO DUST/MISTS,
BEFORE EATING/SMOKING. WASH SKIN, IF EXPOS TO DUST/MIST, AT END OF
WORK SHIFT.
Supplemental Safety and Health
EXPLO HAZ:UNDER NORMAL HNDLG CNDTNS. FIRST AID PROC:MAKE UNCON PERS
VOMIT. VENT:LIMS. IF SUCH EQUIP IS NOT AVAIL, USE NIOSH APPRVD RESP
PROT AS SPECIFIED. OTHER PROT EQUIP:GENERATION OF DUST, MIST/FUM E.
OTHER PREC:NRC PUBLISHES REGS REGARDING RADIOACTIVE MATLS. THESE
REGS ARE CNTND IN TITLE 10 OF CODE OF FED (ING 3)
================== Physical/Chemical Properties ==================
Spec Gravity:19.3 (H*2O=1)
Solubility in Water:INSOLUBLE
Appearance and Odor:GRAY TO DARK GRAY METAL; NO ODOR.
================= Stability and Reactivity Data =================
Stability Indicator/Materials to Avoid:YES
POWDERED METAL MAY IGNITE ON CONTACT W/AIR OR OXIDANTS (E.G., F*2;
CIF*3; NO*X; IF*5; PBO*2; NO*2; AND N*2O).
Stability Condition to Avoid:THORIUM UNDERGOES SPONTANEOUS RADIOACTIVE
DECAY.
Hazardous Decomposition Products:NONE.
==================== Disposal Considerations ====================
Waste Disposal Methods:THIS MATERIAL MUST BE DISPOSED OF I/A/W ANY &
ALL APPLICABLE LOCAL, STATE & FEDERAL REGULATIONS. MATERIAL
INTENDED FOR DISPOSAL MAY BE SOLD AS SCRAP FOR RECLAIM.
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.
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