=====================  Product Identification  =====================

MSDS NAME:SPEX CERTIPREP CAT#:MG70 MAGNESIUM OXIDE
NIIN:00-104-1893
MSDS Number: CHKWQ
=== Responsible Party ===
Company:SPEX CERTIPREP
Address:203 NORCROSS AVE
City:METUCHEN
State:NJ
ZIP:08840
Country:US
Info Phone Num:908-549-7144
Emergency Phone Num:800-424-9300(CHEMTREC)
Preparer's Name:SUSHA RAMANE
CAGE:04XT3
=== Contractor Identification ===
Company:SPEX CERTIPREP INC
Address:203 NORCROSS AVE
Box:City:METUCHEN
State:NJ
ZIP:08840
Country:US
Phone:732-549-7144
CAGE:04XT3
Company:SPEX CERTIPREP INC
Address:203 NORCROSS AVE
Box:City:METUCHEN
State:NJ
ZIP:08840
Country:US
Phone:732-549-7144
CAGE:07977

=============  Composition/Information on Ingredients  =============

Name:MAGNESIUM OXIDE
CAS:1309-48-4
RTECS #:OM3850000
Fraction by Wt: 100%
Other REC Limits:NONE RECOMMENDED
OSHA PEL:15 MG/M3 PARTICULATE
ACGIH TLV:10 MG/M3; FUME; 9596

=====================  Hazards Identification  =====================

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:WARNING:IRRITANT.FUMES MAY IRRIT
    EYE/NOSE.MAY CAUSE METAL FUME FEVER & INFLUENZA IKE FEVER.CHRONIC
    EXPO MAY CAUSE RESPIRATORY TRAC IRRIT,NASAL CATARRH & COUGHING UP
    DISCOLORED SPUTUM.
Explanation of Carcinogenicity:PER MSDS:CARCINOGEN STATUS:NONE.
Effects of Overexposure:IRRIT EYE/NOSE,METAL FUME FEVER/INFLUENZA LIKE
    FEVER:SYMPTMS INCLUDE FEVER,COUGH,OPPRESSION IN
    CHEST,ALUEKOCYTOSIS,HEADACHE,WEAKNESS,TIREDNESS,DRYNESS OF
    NOSE/MOUTH,MUSCULAR PAIN,NAU,VOMIT.RESP TRACT 
    IRRIT,CATARRH,COUGHING UP DISCOLORED SPUTUM.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

=======================  First Aid Measures  =======================

First Aid:EYE:FLUSH W/WATER FOR @LEAST 15MINS OCCASIONALLY LIFTING
    UPPER/LOWER EYELIDS.SKIN:REMOVE CONTAM CLOTH.FLUSH W/WATER FOR
    @LEAST 15MINS.INHAL:MOVE TO FRESH AIR.INGEST:DONT INDUCE
    VOMITING.GET IMMED MED  HELP.IF PATIENT IS CONSC GIVE LG QUANTITIES
    OF WATER OR MILK.IRRIT CONTINUES GET MED ATTN IMMED.

=====================  Fire Fighting Measures  =====================

Autoignition Temp:Autoignition Temp Text:NP
Lower Limits:NP
Upper Limits:NP
Extinguishing Media:DRY CHEMICAL, CARBON DIOXIDE, WATER SPRAY OR FOAM.
Fire Fighting Procedures:NONE SPECIFIED BY MANUFACTURER.
Unusual Fire/Explosion Hazard:AVOID BREATHING VAPORS OR DUST. NOT
    COMBUSTIBLE.

==================  Accidental Release Measures  ==================

Spill Release Procedures:VENTILATE & EVACUATE AREA.SWEEP UP & PUT INTO
    SEALED CONTAINER FOR PROPER DISPOSAL.WEAR PROTECTIVE CLOTHING.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

======================	Handling and Storage  ======================

Handling and Storage Precautions:STORE AWAY FROM INCOMPATIBLE
    SUBSTANCES.STORE IN DRY COOL PLACE.HAVE IMMED AVAILABILITY OF
    EYEWASH IN CASE OF EMERGENCY.
Other Precautions:LABELING:HARMFUL IF SWALLOWED OR INHALED.

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:MSHA/NIOSH APPROVED RESPIRATOR.
Ventilation:CHEMCIAL FUME HOOD.
Protective Gloves:YES
Eye Protection:YES
Other Protective Equipment:LAB COAT.
Work Hygienic Practices:WASH CONTAMINATED CLOTHING THOROUGHLY BEFORE
    REUSE.
Supplemental Safety and Health

==================  Physical/Chemical Properties  ==================

HCC:N1
Boiling Pt:B.P. Text:6512F,3600C
Melt/Freeze Pt:M.P/F.P Text:5166F,2852C
Decomp Temp:Decomp Text:NP
Vapor Pres:NO INFO AV
Vapor Density:NO INFO AV
Spec Gravity:3.58
pH:NP
Viscosity:NP
Evaporation Rate & Reference:NO INFO AVIALABLE
Solubility in Water:SLIGHTLY SOLUBLE
Appearance and Odor:ODORLESS FINE WHITE POWDER
Percent Volatiles by Volume:NP
Corrosion Rate:NP

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
ACIDS(STRONG);VIOLENT RX.MAY EXPLODE WHEN HEATED W/AL POWDER,CFS.
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:NO DATA.

====================  Disposal Considerations  ====================

Waste Disposal Methods:CONTACT LOCAL HAZARDOUS OR CHEMICAL WASTE
    DISPOSAL AGENCY FOR 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.

*** END OF RECORD ***