SIGMA CHEMICAL COMPANY -- CACODYLIC ACID SODIUM CRYST,CO250 -- 6810-00N012600 
=====================  Product Identification  =====================

Product ID:CACODYLIC ACID SODIUM CRYST,CO250
MSDS Date:11/09/1989
FSC:6810
NIIN:00N012600
=== Responsible Party ===
Company Name:SIGMA CHEMICAL COMPANY
Address:3050 SPRUCE ST
Box:14508
City:ST. LOUIS
State:MO
ZIP:63178
Country:US
Info Phone Num:800-325-3010/FAX 800-325-5052
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:CACODYLIC ACID SODIUM SALT.ACGIH TLV FOR SOL ARSENIC
    COMPOUNDS.OSHA PEL FOR ORG ARSENIC COMPOUNDS.
CAS:124-65-2
RTECS #:CH7700000
Other REC Limits:N/K 
OSHA PEL:0.5 MG(AS)/M3
ACGIH TLV:0.2 MG(AS)/M3

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

LD50 LC50 Mixture:LD50 RAT ORAL 2600 MG/KG,(SEE SUPP)
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:YES    IARC:YES	  OSHA:NO
Health Hazards Acute and Chronic:HIGHLY TOXIC.MAY BE FATAL IF
    INHALED,SWALLOWED OR ABSORBED THROUGH SKIN.
Explanation of Carcinogenicity:CACODYLIC ACID SODIUM SALT:SUFFICIENT
    EVID FOR CARC IN HUMANS;LIM EVID FOR CARC IN ANIMALS
    (IARC,1987).KNOWN (SEE SUPP
Effects of Overexposure:EYES:MAY CAUSE IRRITATION.SKIN:MAY CAUSE
    IRRITATION.MAY BE FATAL IF ABSORBED.INGEST:MAY BE FATAL.INHAL:MAY
    CAUSE IRRITATION.MAY BE FATAL.
Medical Cond Aggravated by Exposure:N/K 

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

First Aid:EYES/SKIN:IMMEDIATELY FLUSH WITH COPIOUS AMOUNTS OF WATER FOR
    AT LEAST 15 MINUTES WHILE REMOVING CONTAMINATED CLOTHING AND
    SHOES.INGESTION:CALL MD IMMEDIATELY .INHALATION:REMOVE TO FRESH
    AIR.IF  NOT BREATHING,GIVE ARTIFICIAL RESPIRATION.IF BREATHING IS
    DIFFICULT,GIVE OXYGEN.CALL A PHYSICIAN.

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

Flash Point:N/K 
Lower Limits:N/K 
Upper Limits:N/K 
Extinguishing Media:WATER SPRAY,CARBON DIOXIDE,DRY CHEMICAL
    POWDER,ALCOHOL OR POLYMER FOAM.
Fire Fighting Procedures:USE NIOSH/MSHA APPROVED SCBA AND FULL
    PROTECTIVE EQUIPMENT .
Unusual Fire/Explosion Hazard:EMITS TOXIC FUMES UNDER FIRE
    CONDITIONS.HAZARDOUS DECOMPOSITION PRODUCTS:TOXIC FUMES OF CARBON
    MONOXIDE,CARBON DIOXIDE AND ARSENIC OXIDES.

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

Spill Release Procedures:EVACUATE AREA.WEAR SCBA,RUBBER BOOTS AND HEAVY
    GLOVES.WEAR DISPOSABLE COVERALLS AND DISCARD THEM AFTER USE.SWEEP
    UP.PLACE IN A BAG AND HOLD FOR WASTE DISPOSAL.AVOID RAISING
    DUST.VENTILATE AREA AND WAS H SPILL SITE AFTER MATERIAL PICKUP IS
    COMPLETE.
Neutralizing Agent:N/K 

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

Handling and Storage Precautions:USE ONLY IN A CHEMICAL FUME HOOD.KEEP
    CONTAINER TIGHTLY CLOSED.HYGROSCOPIC.STORE IN A COOL,DRY PLACE.
Other Precautions:DO NOT BREATHE DUST.AVOID CONT WITH SKIN,EYES AND
    CLOTHING.AVOID PROLONGED OR REPEATED EXPOSURE.READILY ABSORBED
    THROUGH SKIN.HIGHLY TOXIC.

=============  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 .
Protective Gloves:CHEMICAL-RESISTANT GLOVES.
Eye Protection:CHEMICAL WORKER GOGGLES. MAY (SUP DAT)
Other Protective Equipment:SAFETY SHOWER AND EYE BATH.WEAR APPROPRIATE
    PROTECTIVE CLOTHING.
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.WASH
    CONTAMINATED CLOTHING BEFORE REUSE.
Supplemental Safety and Health
ROUTE OF ENTRY:SKIN/INGEST/INHAL . LD50-LC50 MIX:MOUSE ORAL 4 MG/KG,
    MOUSE SUBCUTANEOUS 1250 MG/KG. EXPLAN OF CARCIN:HUMAN CARCINOGEN
    (NTP,GROUP 1, 1989). ACGIH A2=SUSPECTED HUMAN CARCINOGEN (19 90).
    KNOWN TO CAUSE CANCER (CAL PROP 65,1987). EYE PROTECTION: ADD FULL
    LENGTH FACESHIELD TO GOGGLES .

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

HCC:T3
Boiling Pt:B.P. Text:N/K 
Melt/Freeze Pt:M.P/F.P Text:N/K 
Decomp Temp:Decomp Text:N/K 
Vapor Pres:N/K 
Vapor Density:N/K 
Spec Gravity:N/K 
Evaporation Rate & Reference:N/K 
Solubility in Water:N/K 
Appearance and Odor:WHITE POWDER

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

STRONG OXIDIZING AGENTS AND STRONG BASES.REACTS WITH ACID TO FORM
    HIGHLY TOXIC GAS,DIMETHYLARSINE.
Stability Condition to Avoid:N/K 
Hazardous Decomposition Products:TOXIC FUMES OF CARBON DIOXIDE,CARBON
    MONOXIDE AND ARSENIC OXIDES.

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

Waste Disposal Methods:DISP MUST BE IAW FEDERAL,STATE AND LOCAL REGS
    .DISSOLVE OR MIX THE MATL WITH A COMBUST SOLVENT AND BURN IN A CHEM
    INCINERATOR EQUIPPED WITH AN AFTERBURNER AND SCRUBBER.CACODYLIC
    ACID,SODIUM SALT :SARA TITLE III SECTION 313 LISTED.

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