SIGMA CHEMICAL CO -- DICHLOROMETHANE, 66740  -- 6810-00N069753
<pre>=====================  Product Identification  =====================

Product ID:DICHLOROMETHANE, 66740
MSDS Date:10/01/1994
FSC:6810
NIIN:00N069753
=== 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:21076
=== Contractor Identification ===
Company Name:SIGMA CHEMICAL COMPANY
Address:3050 SPRUCE ST
Box:14508
City:ST LOUIS
State:MO
ZIP:63178
Country:US
Phone:314-771-5765
CAGE:21076

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

Ingred Name:METHANE, DICHLORO-; (DICHLOROMETHANE) (SARA 313) (CERCLA)
CAS:75-09-2
RTECS #:PA8050000
OSHA PEL:500 PPM
ACGIH TLV:50 PPM, A2
EPA Rpt Qty:1000 LBS
DOT Rpt Qty:1000 LBS

Ingred Name:EFTS OF OVEREXP:SUSTAINING USES IN HUMANS
    ACUTELY/CHRONICALLY EXPOSED TO CHLOROCARBS . CHRONIC:DMG TO (ING 3)
RTECS #:9999999ZZ

Ingred Name:ING 2:LIVER & KIDNEYS. POSS CARCIN. LAB EXPERS HAVE SHOWN
    MUTAGENIC EFTS. TARGET ORGAN(S):LIVER, PANCREAS, (ING 4)
RTECS #:9999999ZZ

Ingred Name:ING 3:NERVES. TARGET ORGAN DATA:PERIPHERAL NERVE &
    SENSATION:PARESTHESIA. BEHAVIORAL:ALTERED SLEEP TIME, (ING 5)
RTECS #:9999999ZZ

Ingred Name:ING 4:EUPHORIA, SOMNOLENCE, CONVLS/EFT ON SEIZURE
    THRESHOLD, ATAXIA. CARDIAC:CHANGE RATE. LUNGS, THORAX/RESP:(ING 6)
RTECS #:9999999ZZ

Ingred Name:ING 5:TUMORS. LIVER:LIVER FUNCTION TESTS IMPAIRED. SPECIFIC
    DEVELOPMENTAL ABNORMS:MUSCULOSKELETAL SYS, (ING 7)
RTECS #:9999999ZZ

Ingred Name:ING 6:UROGENITAL SYS. ONLY SELECTED REGISTRY OF TOX EFTS OF
    CHEM SUBSTANCES (RTECS) DATA IS PRESENTED HERE. SEE (ING 8)
RTECS #:9999999ZZ

Ingred Name:ING 7:ACUTAL ENTRY IN RTECS FOR COMPLETE INFORMATION.
RTECS #:9999999ZZ

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

LD50 LC50 Mixture:LD50(ORAL,RAT):1600 MG/KG
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:YES    IARC:YES	  OSHA:NO
Health Hazards Acute and Chronic:ACUTE:HARMFUL IF SWALLOWED,
    INHALED/ABSORB THRU SKIN. VAP/MIST IS IRRIT TO EYES, MUC MEMBS &
    UPPER RESP TRACT. CAUSES SKIN IRRIT. DICHLOROMETHANE IS METABOLIZED
    IN BODY PRDCING CARBON MONOXIDE WHICH I NCRS & SUSTAINS
    CARBOXYHEMOGLOBIN LEVELS IN BLOOD, REDUCING OXYG-CARRYING CAPACITY
    OF BLOOD. EXPOS CAN (EFTS OF OVEREXP)
Explanation of Carcinogenicity:METHYLENE CHLORIDE:IARC MONOGRAPHS,
    SUPP, VOL 7, PG 194, 1987:GROUP 2B. NTP 7TH ANNUAL RPT ON CARCINS.
    1994:(SUPP DATA)
Effects of Overexposure:HLTH HAZS:CAUSE:NAUS, DIZZ & HDCH. MAY CAUSE
    NERV SYS DISTURBS. POSS RISK OF IRREVERSIBLE EFTS. NEUROLOGICAL
    HAZ. CHLOROCARB MATLS HAVE PRDCED SENSIT OF MYOCARDIUM TO
    EPINEPHRINE IN LAB ANIMALS & COUL D HAVE SIMILAR EFT IN HUMANS.
    ADRENOMIMETICS (E.G. EPINEPHRINE) MAY BE CONTRAINDICATED EXCEPT FOR
    LIFE-(ING 2)
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

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

First Aid:IN CASE OF ACCIDENT/IF YOU FEEL UNWELL, SEEK MED ADVICE IMMED
    (SHOW LBL WHERE POSS). SKIN:IMMED WASH W/SOAP & COPIOUS AMTS OF
    WATER. EYES:TREAT BY IMMED & PRLNGD IRRIGATION W/COPIOUS AMTS OF
    WATER FOR  @ LST 15 MIN. ASSURE ADEQ FLUSHING BY SEPARATING LIDS
    W/FINGERS. INHAL:REMOVE TO FRESH AIR. IF NOT BRTHG. GIVE ARTF RESP.
    IF BRTHG IS DFCLT, GIVE OXYG. INGEST:WASH OUT MOUTH W/WATER
    PROVIDED (SUPDAT)

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

Flash Point:NONE
Lower Limits:14%
Upper Limits:22%
Extinguishing Media:NONCOMBUSTIBLE. USE EXTINGUISHING MEDIA APPROPRIATE
    TO SURROUNDING FIRE CONDITIONS.
Fire Fighting Procedures:WEAR NIOSH/MSHA APPROVED PRESSURE DEMAND SCBA
    & FULL PROTECTIVE EQUIPMENT .
Unusual Fire/Explosion Hazard:EMITS TOXIC FUMES UNDER FIRE CONDITIONS.
    THERMAL DECOMPOSITION PRODUCTS MAY INCLUDE HCL AND PHOSGENE .

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

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

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

Handling and Storage Precautions:DO NOT BRTHG VAP. AVOID CONT W/EYES,
    SKIN & CLTHG. AVOID PRLNGD/RPTD EXPOS. READILY ABSORBED THRU SKIN.
    TOX. POSS CARCIN. IRRIT. NEUROLOGICAL HAZ.
Other Precautions:POSS MUTAGEN. KEEP TIGHTLY CLSD & AWAY FROM HEAT &
    OPEN FLAME. STORE IN COOL, DRY PLACE. NO SMKING IN AREA OF USE. DO
    NOT USE IN GEN VICIN OF ARC WELDING, OPEN FLAMES/HOT SURFS. HEAT
    &/OR UV RADIA MAY  CAUSE FORM OF HCL &/OR PHOSGENE .

=============  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 .
Other Protective Equipment:ANSI APPROVED EMERGENCY EYE WASH AND DELUGE
    SHOWER  AND OTHER PROTECTIVE CLOTHING.
Work Hygienic Practices:WASH THOROUGLY AFTER HANDLING.
Supplemental Safety and Health
VP:6.83 PSI @ 20C, 24.48 PSI @ 55C. EXPLAN OF CARCIN:ANTIC TO BE
    CARCIN. ANIMAL:LUNG, LIVER, SALIVARY, MAMMARY GLAND (TUMORS). FIRST
    AID PROC:PERSON IS CONSCIOUS. CALL MD. WASTE DISP METH:ALL FED, STA
    TE & LOC ENVIRONMENTAL REGS.

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

Boiling Pt:B.P. Text:>104F,>40C
Melt/Freeze Pt:M.P/F.P Text:-143F,-97C
Vapor Pres:SUPP DATA
Vapor Density:2.9
Spec Gravity:1.325
Appearance and Odor:COLORLESS LIQUID.

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

Stability Indicator/Materials to Avoid:YES
ALKALI METALS, ALUMINUM, HEAT.
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:CARBON MONOXIDE, CARBON DIOXIDE,
    HYDROGEN CHLORIDE GAS, PHOSGENE GAS.

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

Waste Disposal Methods:MATL SHOULD BE IGNITED IN PRESENCE OF SODIUM
    CARBONATE & SLAKED LIME (CALCIUM HYDROXIDE). SUBSTANCE SHOULD BE
    MIXED W/VERMICULITE & THEN W/DRY CAUSTICS, WRAPPED IN PAPER &
    BURNED IN CHEM INCIN EQUIPPE D W/AFTERBURNER & SCRUBBER. OBSERVE
    ALL(SUP DAT)

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