Product ID:ARSENATE BUFFER SOLUTIONS, FF-AS-100
MSDS Date:08/01/1997
FSC:6810
NIIN:00N084506
MSDS Number: CGTHQ

SIGMA CHEMICAL CO

ST LOUIS, MO 63178
US

Emergency Phone: 314-771-5765

Info Phone: 314-771-5765

Cage: 21076

SIGMA CHEMICAL COMPANY

14508 ST LOUIS, MO 63178 US

Telephone: 314-771-5765

Cage: 21076

ARSENIC ACID, MONOPOTASSIUM SALT; (POTASSIUM ARSENATE)

CAS: 7784-41-0

RTECS: CG1100000

OSHA PEL N/K

ACGIH TLV: 0.01 MG/M3 (AS)

EPA Report Quantity: 1 LB

DOT Report Quantity: 1 LB

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:YES IARC:NO OSHA:YES
Health Hazards Acute and Chronic:ACUTE:MAY BE FATAL IF INHALED,
SWALLOWED OR ABSORBED THROUGH SKIN. VAPOR OR MIST IS IRRITATING TO
EYES, MUCOUS MEMBRANES AND UPPER RESPIRATORY TRACT. CAUSES SKIN
IRRITATION. THE TOXICOLOGICAL PROPERTI ES HAVE NOT BEEN THOROUGHLY
INVESTIGATED. CHRONIC:TARGET ORGANS:SKIN, LUNGS.
Explanation of Carcinogenicity:POTASSIUM ARSENATE:NTP 7TH ANNUAL RPT ON
CARCINS, 1994:KNOWN TO BE CARCIN. OSHA REGULATED:29 CFR 1910.1010.
HUMAN:LIVER.
Effects of Overexposure:SEE HEALTH HAZARDS.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:INGEST:WASH OUT MOUTH W/WATER PROVIDED PERSON IS CONSCIOUS.
CALL MD. SKIN:FLUSH W/COPIOUS AMOUNTS OF WATER FOR AT LEAST 15
MINUTES. REMOVE CONTAMINATED CLOTHING & SHOES. CALL MD.
INHAL:REMOVE TO FRESH AIR. IF BREATHING BECOMES DIFFICULT, CALL
MD. EYES:FLUSH W/COPIOUS AMOUNTS OF WATER FOR AT LEAST 15 MINUTES.
ASSURE ADEQUATE FLUSHING BY SEPARATING EYELIDS W/FINGERS. CALL MD.

Extinguishing Media:WATER SPRAY, CARBON DIOXIDE, DRY CHEMICAL POWDER OR
APPROPRIATE FOAM.
Fire Fighting Procedures:USE NIOSH APPROVED SCBA & FULL PROTECTIVE
EQUIPMENT .
Unusual Fire/Explosion Hazard:EMITS TOXIC FUMES UNDER FIRE CONDITIONS.

Spill Release Procedures:WEAR NIOSH APPROVED RESPIRATOR, CHEMICAL
SAFETY GOGGLES, RUBBER BOOTS & HEAVY RUBBER GLOVES. ABSORB ON SAND
OR VERMICULITE & PLACE IN CLOSED CONTAINERS FOR DISPOSAL. VENTILATE
AREA & WASH SPILL SITE A FTER MATERIAL PICKUP IS COMPLETE.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:HIGHLY TOXIC. VERY TOXIC BY
INHALATION, IN CONTACT W/SKIN & IF SWALLOWED. IRRITATING TO EYES,
RESPIRATORY SYS & SKIN. HARMFUL IF INHALED OR SWALLOWED.
Other Precautions:USE ONLY W/ADEQUATE VENT OR NIOSH APPROVED RESP PROT.
IN CASE OF ACCIDENT OR IF YOU FEEL UNWELL, SEEK MEDICAL ADVICE
IMMEDIATELY (SHOW LABEL WHERE POSSIBLE). CAUTION:SUBSTANCE NOT YET
FULLY TESTED.

Respiratory Protection:NIOSH APPROVED RESPIRATOR.
Ventilation:USE ONLY IN A CHEMICAL FUME HOOD.
Protective Gloves:COMPATIBLE CHEMICAL-RESISTANT GLOVES.
Eye Protection:ANSI APPROVED CHEM WORKERS GOGGS .
Other Protective Equipment:EYE WASH FOUNTAIN & DELUGE SHOWER WHICH MEET
ANSI DESIGN CRITERIA .
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
WASTE DISP METH:SULFIDE W/SODIUM HYPOCHLORITE. NEUTRALIZE SOLUTION
BEFORE FLUSHING DOWN DRAIN. OBSERVE ALL FEDERAL, STATE & LOCAL
ENVIRONMENTAL REGULATIONS.

Solubility in Water:SOLUBLE
Appearance and Odor:LIQUID.

Stability Indicator/Materials to Avoid:YES
NONE SPECIFIED BY MANUFACTURER.
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:ARSENIC OXIDES.

Waste Disposal Methods:MATL SHOULD BE DISSOLVED IN 1)WATER; 2)ACID SOLN
OR 3)OXIDIZED TO WATER-SOL STATE. PRECIPITATE MATL AS SULFIDE,
ADJUSTING PH OF SOLN TO 7 TO COMPLETE PRECIPITATION. FILTER
INSOLUBLES & DISPOSE OF THEM IN HAZ-WASTE SITE. DESTROY ANY EXCESS
(SUPP DATA)

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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.