===================== Product Identification =====================
MSDS NAME:P8048 MAGNESIUM THORIUM ALLOY HK31
NIIN:00F051167
MSDS Number: CCDRH
=== Responsible Party ===
Company:READE MFG DIVISION/MAGNESIUM ELEKTRON INC
Address:100 RIDGEWAY BLVD
City:LAKEHURST
State:NJ
ZIP:08733-5000
Country:US
Info Phone Num:908-657-6451
Emergency Phone Num:908-657-6451
CAGE:81450
=== Contractor Identification ===
Company:READE MFG DIVISION/MAGNESIUM ELEKTRON INC
Address:100 RIDGEWAY BLVD
City:LAKEHURST
State:NJ
ZIP:08733-5000
Country:US
Phone:908-657-6451
CAGE:81450
============= Composition/Information on Ingredients =============
Name:MAGNESIUM
CAS:7439-95-4
RTECS #:OM2100000
Fraction by Wt: >95%
Name:THORIUM
CAS:7440-29-1
RTECS #:XO6400000
Fraction by Wt: <4%
Name:ZIRCONIUM
CAS:7440-67-7
RTECS #:ZH7070000
Fraction by Wt: <1%
OSHA PEL:5 MG/CUM
ACGIH TLV:5 MG/CUM
===================== Hazards Identification =====================
LD50 LC50 Mixture:ORAL LD50(RAT): 230 MG/KG MAGNESIUM
Routes of Entry: Inhalation:NO Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INHALATION: LOW TOXICITY, 98% OF
THORIUM OXIDE REMAINS IN THE LUNGS AFTER 1 YEAR. EYES: MECHANICAL
INJURY EXPECTED. SKIN: MAGNESIUM SLIVERS BENEATH THE SKIN TO
PRODUCE GASEOUS BLEBS. INGESTION: LOW TO XICITY.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:INHALATION: LOW TOXICITY, 98% OF THORIUM OXIDE
REMAINS IN THE LUNGS AFTER 1 YEAR. EYES: MECHANICAL INJURY
EXPECTED. SKIN: MAGNESIUM SLIVERS BENEATH THE SKIN TO PRODUCE
GASEOUS BLEBS. INGESTION: LOW TO XICITY.
======================= First Aid Measures =======================
First Aid:INHALATION: REMOVE TO FRESH AIR. SKIN: WASH OFF W/SOAP &
FLOWING WATER. ANY CUTS/ABRASIONS SHOULD BE CLEANED THOROUGHLY
PRIOR TO DRESSING. SPLINTERS SHOULD BE REMOVED & THE WOUND DRESSED
W/MAGNESIUM S ULPHATE. EYES: WASH W/CLEAN WATER/0.9% W/STERILE
SOLUTION OF SODIUM CHLORIDE. OBTAIN MEDICAL ATTENTION IN ALL CASES.
===================== Fire Fighting Measures =====================
Extinguishing Media:DRY AGENTS; CLASS D DRY POWDER EXTINGUISHER, FLUX,
SAND/TALC(MAGNESIUM TRISILICATE) & PRESSURED EXTINGUISHERS.
Fire Fighting Procedures:USE SCBA. DON'T USE WATER, FOAM, HALOGENATED
GAS/CO2. AVOID SUSPENSIONS/ACCUMULATIONS OF MAGNESIUM DUST/POWDER
IN AIR; MAY CREATE AN EXPLOSIVE MIXTURE.(SEE SUPP
Unusual Fire/Explosion Hazard:MAGNESIUM THORIUM ALLOYS IGNITE IF RAISED
NEAR MELTING POINT/ANY SPARK/FLAME. EXPOSION HAZARD WHEN IN FINELY
DIVIDED FORM.
================== Accidental Release Measures ==================
Spill Release Procedures:MAGNESIUM THORIUM ALLOY MAY BE COLLECTED &
REUSED IF CLEAN & DRY. PARTICULATE SHOULD BE COLLECTED USING A
NATURAL FIBER BRUSH & A NON-SPARKING DUST PAN. WET/CONTAMINATED
MATERIAL SHOULD BE PLACED IN A WELL VENTILATED STEEL CONTAINER &
STORED OUTSIDE.
====================== Handling and Storage ======================
Handling and Storage Precautions:STORE IN A COOL DRY PLACE AWAY FROM
OTHER MATERIALS. DESIGNATE STORAGE AREA AS A CONTROLLED RADIOACTIVE
AREA. KEEP AWAY FROM FLAMES/SPARKS/HEAT.
Other Precautions:AVOID BREATHING DUST & CONTACT W/SKIN. AVOID
ACCUMULATIONS OF PARTICULATE IN AREAS WHERE THE ALLOY IS MACHINED.
INGOTS MUST BE PREHEATED TO ENSURE COMPLETE ABSENCE OF MOISTURE &
ELIMINATE THE RISK OF EXPLOSION. SMOKING PROHIBITED.
============= Exposure Controls/Personal Protection =============
Respiratory Protection:WHERE DUSTY ATMOSPHERES ARE EXPERIENCED DUST
MASKS TO EN149 FFP3 AS A MINIMUM STANDARD MAY BE USED.
Ventilation:LOCAL EXHAUST
Protective Gloves:REQUIRED
Eye Protection:SAFETY GLASSES BS2092/GOGGLES
Other Protective Equipment:FACESHIELD TO BS2092 1M, FLAME/FIREPROOFED
COTTON DRILL OVERALLS W/O EXTERNAL POCKETS/FLAPS, FOUNDRY GARMENTS,
BOOTS.
Work Hygienic Practices:DON'T EAT, DRINK, SMOKE/TAKE SNUFF IN THE
WORKING AREA. SHOWER & CHANGE CLOTHES AFTER HANDLING.
Supplemental Safety and Health
FIRE PROC CONT'D: DON'T ALLOW MAGNESIUM PARTICULATE TO COME INTO
CONTACT W/WATER/TO BECOME DAMP. NOTE TO PHYS: OBSERVE TREATMENTS
BASED ON SIGNS & SYMPTOMS. CONSIDERATION SHOULD BE GIVEN TO THE
POSSIB ILITY OF OVEREXPOSURE TO MATERIALS MAY OCCUR. EDTA MERITS
CONSIDERATION IN HELPING RID THE BODY OF THORIUM EXPOSURE.
================== Physical/Chemical Properties ==================
Boiling Pt:B.P. Text:2012F
Melt/Freeze Pt:M.P/F.P Text:1130-1193F
Solubility in Water:INSOLUBLE
Appearance and Odor:SILVERY-GREY MODERATELY HARD ALKALINE EARTH METAL;
ODORLESS
================= Stability and Reactivity Data =================
Stability Indicator/Materials to Avoid:YES
WATER, ACIDS, MOLTEN ALLOYS, WATER REACTS W/MAGNESIUM RELEASING
EXPLOSIVE HIGHLY FLAMMABLE HYDROGEN GAS.
Stability Condition to Avoid:FLAMES, SPARKS & SOURCES OF HEAT,
MOISTURE.
Hazardous Decomposition Products:MAGNESIUM OXIDE/THORIUM
OXIDE/MAGNESIUM NITRIDE/FERROUS OXIDE/SILICA/HYDROGEN
GAS/AMMONIA/HYDROXIDES.
==================== Disposal Considerations ====================
Waste Disposal Methods:NON-RECYCLABLE MATERIAL SHOULD BE DISPOSED OF IN
A LICENSED CHEMICAL WASTE FACILITY IAW/FEDERAL, STATE & LOCAL
REGULATIONS. TADIOACTIVE MATERIAL W/LOW SPECIFIC ACTIVITY UN2912.
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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