Product ID:HZ32A, MAGNESIUM ALLOY
MSDS Date:05/28/1991
FSC:9530
NIIN:01-164-7578
MSDS Number: BVQCZ

MAGNESIUM ELECTRON INC, READE MFG DIV

100 RIDGEWAY BLVD
LAKEHURST, NJ 08733
US

Emergency Phone: 908-657-6451

Info Phone: 908-657-6451

Preparer: 99S9)

Cage: NO107

READE MFG CO INC

LAKEHURST, NJ 08733 US

Telephone: 908-657-6451

Cage: 81454

MAGNESIUM

CAS: 7439-95-4

RTECS: OM2100000

ZINC (SARA III)

CAS: 7440-66-6

RTECS: ZG8600000

EPA Report Quantity: 1000 LBS

DOT Report Quantity: 1000 LBS

ZIRCONIUM

CAS: 7440-67-7

RTECS: ZH7070000

OSHA PEL 5 MG/M3

ACGIH TLV: 5 MG/M3/10 STEL;9394

THORIUM

CAS: 7440-29-1

RTECS: XO6400000

Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:YES IARC:NO OSHA:NO
Health Hazards Acute and Chronic:EYES: MECHANICAL INJURY BY DUST. FUMES
MAY CAUSE IRRITATION. AVOID EYE CONTACT BY ANY PARTICULATE MATERIAL
PRODUCED BY PROCESSING OR MACHINING. SKIN: MECHANICAL INJURY.
INCIDENCE OF DERMITITIS IS RARE . ANY CUTS OR BREAKS IN SKIN SHOULD
BE PROTECTED FROM CONTACT WITH ALLOY. INHALATION: AVOID INHALATION
OF ANY DUST OR FUMES GENERATED BY MACHINING, MELTING, WELDING OR
ANY OPERATION. NATURAL THORIUM I S AN ALPHA EMITTER. INGESTION:
AVOID INGESTION OF PARTICULATE MATERIAL. WHILE ACUTE PROBLEMS ARE
UNLIKELY, CHRONIC EFFECTS MAY DEVELOP IF MAGNESIUM THORIUM ALLOY
DUST WAS INGESTED OVER LONG PERIOD.
Explanation of Carcinogenicity:PER MSDS:THORIUM AS THO2 IS A CARCINOGEN
AND AN ALPHA EMMITTER. (IT'S NOT A MUTAGEN NOR A TERATOGEN.)
Effects of Overexposure:ARTHRITIS, LAMENESE AND INFLAMMATION OF
GASTROINTESTINAL TRACT REPORTED IN ANIMAL STUDIES. ZINC-CRHOMOSOMAL
ANOMALIES IN LEUKOCYTES REPORTED.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:EYES: FLUSH WITH WATER OR 0.9% W/W STERILE SOLUTION OF SODIUM
CHLORIDE. F FOREIGN BODY CANNOT BE REMOVED BY FLUSHING SEEK MEDICAL
AID. SKIN: THOROUGHLY CLEAN ANY CUTS TO REMOVE ANY TRACE OF
CONTAMINAT ION PROIR TO DRESSING. SPLINTERS SHOULD BE REMOVED &
WOUND DRESSED WITH MAGNESIUM SULPHATE. INHAATIONL: MOVE TO FRESH
AIR. GIVE ARTIFICIAL RESPIRATION, OXYGEN, CPR IF NEEDED. GET
MEDICAL ATTENTION IF LARGE AMOUNTS OF THORIUM CONTAINING DUST ARE
INHALED OR INGESTED.

Extinguishing Media:SMOTHER BURNING MAGNESIUM BY COVERING WITH
EXTINGUISHING POWDER APPROVED FOR MAGNESIUM FIRES (GI, MET-L-X,
SUPER BC, DRY SAND).
Fire Fighting Procedures:WEAR POSITIVE PRESSURE SELF-CONTAINED
BREATHING APPARATUS & FULL PROTECTIVE CLOTHING. DO NOT USE WATER,
FOAM, CARBON DIOXIDE, OR HALON GAS.
Unusual Fire/Explosion Hazard:USE OF WATER ON BURNING MAGNESIUM WILL
PRODUCE HYDROGEN GAS & MAY CAUSE EXPLOSION. EXPLOSION HAZARD EXISTS
IN FORM OF DUST(MIN 20MG/L) WHEN EXPOSED TO FLAME OR BY CHEMICAL
REACTION WITH OXIDIZERS.

Spill Release Procedures:COLLECT AND REPLACE IN ORIGINAL CONTAINER:
UNTREATED SURFACES SHOULD BE THOROUGHLY DRIED TO PREVENT OXIDATION.
Neutralizing Agent:NONE.

Handling and Storage Precautions:STORE IN DRY PLACE AWAY FROM IGNITION
SOURCES. MAGNESIUM ALLOY INGOTS SHOULD BE PREHEATED TO ELIMINATE
MOISTURE PRIOR TO USE IN ANY MELTING OPERATION.
Other Precautions:WATER IN ANY FORM ADDED TO MOLTEN MAGNESIUM WILL
GENERATE STEAM & HYDROGEN & MAY CAUSE AN EXPLOSION. PRECAUTIONS
APPROPRIATE TO THE HANDLING OF A LOW SPECIFIC ACTIVITY RADIOACTIVE
SUBSTANCE SHOULD BE ADOPTED FOR THORIUM CONTAINING ALLOYS.

Respiratory Protection:MICROFILTER RESPIRATORS WHERE REQUIRED TO
MINIMIZE EXPOSURE TO DUST OR FUME.
Ventilation:GOOD GENERAL VENTILATION FOR MOST CONDITIONS TO KEEP
EXPOSURE BELOW PERMISSIBLE LIMITS INDICATED. LOCAL EXHAUST
VENTIATION MAY BE REQUIRED (SEE SUPPLEMEN DATA)
Protective Gloves:SUITABLE TO AVOID SKIN ABRASION.
Eye Protection:SAFETY GLASSES OR FULL FACIAL PROTECTION.
Other Protective Equipment:WORK CLOTHES, COVERALLS, PROTECTIVE BOOTS
FOR NORMAL HANDLING. FLAME/FIRE PROOF COTTON DRILL OVERALLS WITHOUT
EXTERNAL POCKETS. FOUNDRY PROTECTIVE BOOTS TO BE WORN FOR MELTING
OPERATIONS.
Work Hygienic Practices:WASH HANDS AFTER HANDLING. AVOID CONTACT
W/ALLOY.
Supplemental Safety and Health
VENTILATION CONTINUED: FOR SOME OPERATIONS (E.G. MELTING, GRINDING,
FETTLING, WELDING).

HCC:A1
Boiling Pt:B.P. Text:2020F,1104C
Melt/Freeze Pt:M.P/F.P Text:1200F,649C
Spec Gravity:1.85
Solubility in Water:INSOLUBLE.
Appearance and Odor:SILVER/GREY METALLIC SOLID, NO ODOR.

Stability Indicator/Materials to Avoid:YES
WATER AND ACIDS.
Stability Condition to Avoid:AVOID CONTACT WITH WATER AND ACIDS.
Hazardous Decomposition Products:HYDROGEN GAS.

Waste Disposal Methods:DISPOSAL MUST BE IN COMPLIANCE WITH LOCAL, STATE
AND FEDERAL REGULATIONS. THORIUM (AS TH) LTEL (8HR TWA) 10-2
BQ/CM2, (PER MAGNESIUM ELECTRON INC CONTAINS 3% NATURAL THORIUM).

Toxicological Information:SKIN: NO INFORMATION FOUND. THORIUM IS AN
ALPHA EMITTER. AVOID CONTACT WITH BROKEN SKIN. EYES: NO INFORMATION
FOUND. INHALATION: NO INFORMATION FOUND. THORIUM IS AN ALPHA
EMITTER & CARCINOGEN. IT IS N OT A MUTAGEN OR TERATOGEN. INGESTION:
NO INFORMATION FOUND.THORIUM IS AN ALPHA EMITTER & CARCINOGEN. IT
IS NOT A MUTAGEN NOR A TERATOGEN.

Ecological:NOT PROVIDED

Transport Information:UN CLASS 7, UN NO: 2912, RADIOACTIVE MATERIAL.

SARA Title III Information:ZINC COMPOUNDS ARE SARA 313 CHEMICALS.
Federal Regulatory Information:NOT PROVIDED
State Regulatory Information:NOT PROVIDED

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.