SIGMA CHEMICAL CO -- MAGNESIUM HYDROXIDE, M8511  -- 6810-00N058873
<pre>=====================  Product Identification  =====================

Product ID:MAGNESIUM HYDROXIDE, M8511
MSDS Date:08/25/1993
FSC:6810
NIIN:00N058873
=== Responsible Party ===
Company Name:SIGMA CHEMICAL CO
Box:14508
City:ST LOUIS
State:MO
ZIP:63178
Country:US
Info Phone Num:800-325-3010
Emergency Phone Num:314-771-5765
CAGE:0DK69
=== Contractor Identification ===
Company Name:SIGMA CHEMICAL CO SIGMA DIAGNOSTICS DIV
Address:3050 SPRUCE ST
Box:City:ST LOUIS
State:MO
ZIP:63103-2530
Country:US
Phone:314-771-5765
CAGE:0DK69

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

Ingred Name:MAGNESIUM HYDROXIDE
CAS:1309-42-8
RTECS #:OM3570000
OSHA PEL:N/K 
ACGIH TLV:N/K 

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

LD50 LC50 Mixture:LD50:(ORAL,RAT) 8500 MG/KG.
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:ACUTE:MAY BE HARMFUL BY INHALATION,
    INGESTION OR SKIN ABSORPTION. CAUSES EYE & SKIN IRRITATION.
    MATERIAL IS IRRITATING TO MUCOUS MEMBRANES & UPPER RESPIRATORY
    TRACT. TO THE BEST OF MFR'S KNOWLEDGE, TH E CHEMICAL, PHYSICAL &
    TOXICOLOGICAL PROPERTIES HAVE NOT BEEN THOROUGHLY INVESTIGATED.
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:SEE HEALTH HAZARDS.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

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

First Aid:EYES:IMMED FLUSH W/COPIOUS AMTS OF WATER FOR AT LST 15 MINS.
    ASSURE ADEQ FLUSHING BY SEPARATING EYELIDS W/FINGERS. SKIN:IMMED
    FLUSH W/COPIOUS AMTS OF WATER FOR AT LST 15 MINS WHILE REMOVING
    CONTAM CLT HG & SHOES. WASH CONTAM CLTHG BEFORE REUSE. DISCARD
    CONTAM SHOES. INHAL:REMOVE TO FRESH AIR. IF NOT BRTHG GIVE ARTF
    RESP. IF BRTHG IS DFCLT, GIVE OXYGEN. INGEST:WASH OUT MOUTH W/WATER
    (SUPP DATA)

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

Extinguishing Media:DRY CHEMICAL POWDER.
Fire Fighting Procedures:USE NIOSH/MSHA APPROVED SCBA & FULL PROTECTIVE
    EQUIPMENT .
Unusual Fire/Explosion Hazard:EMITS TOXIC FUMES UNDER FIRE CONDITIONS.

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

Spill Release Procedures:EVACUATE AREA. WEAR NIOSH/MSHA APPRVD SCBA,
    RUBBER BOOTS & HEAVY RUBBER GLOVES. ABSORB ON SAND OR VERMICULITE &
    PLACE IN CLOSED CONTAINERS FOR DISPOSAL. VENTILATE AREA & WASH
    SPILL SITE AFTER MATL PIC KUP IS COMPLETE.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:DO NOT GET IN EYES, ON SKIN, ON
    CLOTHING. AVOID PROLONGED OR REPEATED EXPOSURE. IRRITANT. KEEP
    TIGHTLY CLOSED. STORE IN A COOL, DRY PLACE.
Other Precautions:IRRITATING TO EYES, RESPIRATORY SYSTEM & SKIN.

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

Respiratory Protection:WEAR APPROPRIATE NIOSH/MSHA APPROVED RESPIRATOR.
Ventilation:USE ONLY IN A CHEMICAL FUME HOOD.
Protective Gloves:CHEMICAL-RESISTANT GLOVES.
Eye Protection:ANSI APPROVED CHEM WORKERS GOGGS(SUPDAT)
Other Protective Equipment:WEAR SUITABLE PROTECTIVE CLOTHING. SAFETY
    SHOWER & EYE BATH.
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health
FIRST AID PROC:PROVIDED PERSON IS CONSCIOUS. CALL MD. WASTE DISP
    METH:FUMES WHICH CAN BE CONTROLLED BY THE RATE OF ADDITION. OBSERVE
    ALL FEDERAL, STATE & LOCAL ENVIRONMENTAL REGULATIONS. EYE PROT:& FU
    LL LENGTH FACESHIELD .

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

Spec Gravity:2.36
Appearance and Odor:WHITE POWDER.

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

Stability Indicator/Materials to Avoid:YES
STRONG ACIDS.
Stability Condition to Avoid:ABSORBS CO*2 FROM AIR.
Hazardous Decomposition Products:NATURE OF DECOMPOSITION PRODUCTS NOT
    KNOWN.

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

Waste Disposal Methods:FOR SM QTYS:CAUTIOUSLY ADD TO LG STIRRED EXCESS
    OF WATER. ADJUST PH TO NEUTRAL, SEPARATE ANY INSOL SOLIDS/LIQS &
    PACKAGE THEM FOR HAZ-WASTE DISP. FLUSH AQ SOLN DOWN DRAIN W/PLENTY
    OF WATER. HYDROLYSIS  & NEUTRALIZATION RXNS MAY GENERATE HEAT
    &(SUPDAT)

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