ALDRICH CHEMICAL CO -- MESITYL OXIDE,98%  -- 6810-00N010925
<pre>=====================  Product Identification  =====================

Product ID:MESITYL OXIDE,98%
MSDS Date:06/07/1989
FSC:6810
NIIN:00N010925
=== Responsible Party ===
Company Name:ALDRICH CHEMICAL CO
Box:355
City:MILWAUKEE
State:WI
ZIP:53201
Info Phone Num:414-273-3850
Emergency Phone Num:414-273-3850
CAGE:60928
=== Contractor Identification ===
Company Name:ALDRICH CHEMICAL CO INC
Address:1001 WEST ST PAUL AVE
Box:355
City:MILWAUKEE
State:WI
ZIP:53233
Country:US
Phone:414-273-3850
CAGE:60928

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

Ingred Name:MESITYL OXIDE
CAS:141-79-7
RTECS #:SB4200000
Fraction by Wt: 98%
Other REC Limits:N/K 
OSHA PEL:25 PPM
ACGIH TLV:15 PPM/25 STEL; 9293

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

LD50 LC50 Mixture:N/K 
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:HARMFUL IF SWALLOWED,INHALED OR
    ABSORBED THROUGH SKIN.HIGH CONCENTRATIONS ARE EXTREMELY DESTRUCTIVE
    TO TISSUES OF THE MUCOUS MEMBRANES & UPPER RESPIRATORY TRACT,EYES &
    SKIN.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:EYES:CAUSES SEVERE IRRIT.HIGH CONC EXTREMELY
    DESTRUCTIVE.SKIN:HARMFUL IF ABSORBED.CAUSES SEVERE IRRIT.HIGH CONC
    EXTREMELY DESTRUCTIVE.INGEST:HARMFUL.INHAL:HIGH CONC EXTREMELY
    DESTRUCTIVE TO MUC MEMB,U PPER RESP TRACT.SYMP INCLUDE BURNING
    SENSATION,COUGHING,WHEEZING,LARYNGITIS,SHORTNESS OF
    BREATH,HEADACHE,NAUSEA,VOMIT.
Medical Cond Aggravated by Exposure:N/K 

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

First Aid:EYES:IMMED FLUSH W/ COPIOUS AMTS OF WATER FOR AT LEAST 15
    MIN,SEPARATE LIDS W/ FINGERS.CALL MD.SKIN:IMMED FLUSH W/ COPIOUS
    AMTS OF WATER FOR AT LEAST 15 MIN WHILE REMOVING CONTAM CLOTHING &
    SHOES.CALL	MD.INGEST:CONTACT MD IMMED .INHAL:REMOVE TO FRESH
    AIR.IF NOT BREATHING GIVE ARTIFICIAL RESPIRATION.IF BREATHING IS
    DIFFICULT GIVE OXYGEN.CALL MD.

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

Flash Point:87F,30.56C
Lower Limits:N/K 
Upper Limits:N/K 
Extinguishing Media:CARBON DIOXIDE,DRY CHEMICAL POWDER,ALCOHOL OR
    POLYMER FOAM.WATER MAY BE EFFECTIVE FOR COOLING,BUT MAY NOT AFFECT
    FIRE.
Fire Fighting Procedures:USE NIOSH/MSHA APPROVED SCBA AND FULL
    PROTECTIVE EQUIPMENT .PREVENT CONTACT WITH SKIN & EYES.FLAMMABLE
    LIQUID.
Unusual Fire/Explosion Hazard:VAPOR MAY TRAVEL CONSIDERABLE DISTANCE TO
    SOURCE OF IGNITION & FLASH BACK.HAZARDOUS DECOMPOSITION
    PRODUCTS:TOXIC FUMES OF CARBON MONOXIDE,CARBON DIOXIDE.

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

Spill Release Procedures:EVACUATE AREA.WEAR SCBA,RUBBER BOOTS & HEAVY
    RUBBER GLOVES.SHUT OFF ALL SOURCES OF IGNITION.COVER W/ AN
    ACTIVATED CARBON ABSORBENT,TAKE UP & PLACE IN CLOSED
    CONTAINERS.TRANSPORT OUTDOORS.VENTILATE ARE A & WASH SPILL SITE
    AFTER MATL PICKUP IS COMPLETE.
Neutralizing Agent:N/K 

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

Handling and Storage Precautions:WEAR RESP,CHEM-RESIST GLOVES,SAFETY
    GOGGLES,OTHER PROT CLTHG.USE ONLY IN CHEM FUME HOOD.SAFETY
    SHOWER,EYE BATH.DO NOT BREATHE VAPOR.FACESHLD (8" MIN).
Other Precautions:STORE IN A COOL,DRY PLACE.AVOID CONTACT W/
    EYES,SKIN,CLOTHING.AVOID PROLONGED OR REPEATED EXPOSURE.WASH
    THOROUGHLY AFTER HANDLING.SEVERE IRRIT.LACHRYMATOR.KEEP TIGHTLY
    CLOSED.KEEP FROM HEAT,SPARKS,OPE N FLAME.READILY ABSORBED THROUGH
    SKIN.

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

Respiratory Protection:NIOSH/MSHA APPROVED RESPIRATOR APPROPRIATE FOR
    EXPOSURE OF CONCERN .
Ventilation:LOCAL AND GENERAL VENTILATION NECESSARY TO KEEP AIR
    CONCENTRATION BELOW TLV .USE ONLY IN CHEMICAL FUME HOOD.
Protective Gloves:CHEMICAL-RESISTANT
Eye Protection:CHEM WORK GOGG .FACESHLD (8" MIN).
Other Protective Equipment:RUBBER BOOTS & HEAVY RUBBER GLOVES.SAFETY
    SHOWER & EYE BATH.
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.REMOVE & WASH
    CONTAMINATED CLOTHING BEFORE REUSE.
Supplemental Safety and Health
ROUTES OF ENTRY:INHAL/SKIN/INGEST .

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

Boiling Pt:B.P. Text:129C,264.2F
Melt/Freeze Pt:M.P/F.P Text:-53C,-63.4F
Decomp Temp:Decomp Text:N/K 
Vapor Pres:N/K 
Vapor Density:N/K 
Spec Gravity:0.858 (WATER=1)
Evaporation Rate &amp; Reference:N/K 
Solubility in Water:N/K 
Appearance and Odor:COLORLESS LIQUID

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

AVOID CONTACT WITH ACID,BASES,OXIDIZING AGENTS,REDUCING
    AGENTS,HALOGENS.
Stability Condition to Avoid:N/K 
Hazardous Decomposition Products:TOXIC FUMES OF CARBON MONOXIDE &
    CARBON DIOXIDE.

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

Waste Disposal Methods:DISPOSAL MUST BE IN ACCORDANCE WITH
    FEDERAL,STATE & LOCAL REGULATIONS .BURN IN A CHEMICAL INCINERATOR
    EQUIPPED W/ AN AFTERBURNER & SCRUBBER BUT EXERT EXTRA CARE IN
    IGNITING AS THIS MATERIAL IS H IGHLY FLAMMABLE.

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