Product ID:POTASSIUM IODIDE CRYSTALLINE, P8256
MSDS Date:11/01/1995
FSC:6810
NIIN:00N020262
MSDS Number: CFZGY

SIGMA CHEMICAL CO

ST LOUIS, MO 63178
US

Emergency Phone: 314-771-5765

Info Phone: 800-325-3010

Cage: 21076

SIGMA CHEMICAL COMPANY

14508 ST LOUIS, MO 63178 US

Telephone: 314-771-5765

Cage: 21076

POTASSIUM IODIDE; (POTASSIUM IODIDE CRYSTALLINE)

CAS: 7681-11-0

RTECS: TT2975000

OSHA PEL N/K

ACGIH TLV: N/K

EMBRYO OR FETUS (FETOTOXICITY, FETAL DEATH). EFFECTS

RTECS: 9999999ZZ

IS CONSCIOUS. CALL MD. WASH CONTAMINATED

RTECS: 9999999ZZ

& FULL LENGTH FACESHIELD .

RTECS: 9999999ZZ

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE: HARMFUL IF SWALLOWED, INHALED
OR ABSORBED THRU SKIN. CAUSES SEVERE IRRITATION. HIGH
CONCENTRATIONS ARE EXTREMELY DESTRUCTIVE TO TISSUES OF MUCOUS
MEMBRANES AND UPPER RESPIRATORY TRACT, EYES AND SKIN. SYMPTOMS OF
EXPOSURE MAY INCLUDEBURNING SENSATION, COUGHING, WHEEZING,
LARYNGITIS, SHORTNESS (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ: OF BREATH, HEADACHE, NAUSEA AND
VOMITING. MAY CAUSE ALLERGIC RESPIRATORY AND SKIN REACTIONS.
CHRONIC: OVEREXPOSURE MAY CAUSE REPRODUCTIVE DISORDER(S) BASED ON
TESTS W/LAB ANIMALS. TARGET ORG AN:THYROID. TO THE BEST OF
MANUFACTURER'S KNOWLEDGE, THE CHEMICAL, PHYSICAL & TOXICOLOGICAL
PROPERTIES HAVE NOT (SUPDAT)
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:SKIN: IMMED FLUSH SKIN W/COPIOUS AMOUNTS OF WATER WHILE
REMOVING CONTAMD CLTHG & SHOES. EYES: IMMED FLUSH EYES W/COPIOUS
AMOUNTS OF WATER FOR AT LEAST 15 MINUTES. ASSURE ADEQUATE FLUSHING
OF EYES BY S EPARATING EYELIDS W/FINGERS. INHAL: REMOVE TO FRESH
AIR. IF NOT BREATHING GIVE ARTIFICIAL RESPIRATION. IF BREATHING IS
DIFFICULT, GIVE OXYGEN. INGEST: WASH OUT MOUTH W/WATER PROVIDED
PERSON (ING 3)

Extinguishing Media:NONCOMBUSTIBLE. USE EXTINGUISHING MEDIA APPROPRIATE
TO SURROUNDING FIRE CONDITIONS.
Fire Fighting Procedures:USE NIOSH APPROVED SCBA AND FULL PROTECTIVE
EQUIPMENT .
Unusual Fire/Explosion Hazard:EMITS TOXIC FUMES UNDER FIRE CONDITIONS.

Spill Release Procedures:EVACUATE AREA. WEAR NIOSH APPRVD SCBA, RUBBER
BOOTS & HEAVY RUBBER GLOVES. WEAR DISPOSABLE COVERALLS & DISCARD
AFTER USE. SWEEP UP, PLACE IN BAG & HOLD FOR DISPOSAL. AVOID
RAISING DUST. VENTILATE AREA & WASH SPILL SITE AFTER MATL PICKUP
ISCOMPLETE.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:KEEP TIGHTLY CLOSED. STORE IN A COOL,
DRY PLACE.
Other Precautions:DO NOT BREATHE DUST. DO NOT GET IN EYES, ON SKIN, ON
CLOTHING. AVOID PROLONGED OR REPEATED EXPOSURE. WASH THOROUGHLY
AFTER HANDLING. SEVERE IRRITANT. SENSITIZER. POSSIBLE TERATOGEN.

Respiratory Protection:WEAR APPROPRIATE NIOSH APPROVED RESPIRATOR.
Ventilation:USE ONLY IN A CHEMICAL FUME HOOD.
Protective Gloves:CHEMICAL-RESISTANT GLOVES.
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGS (ING 4)
Other Protective Equipment:ANSI APPROVED EYE WASH & DELUGE SHOWER .
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
MATL TO AVOID: TIN, NICKEL & THEIR ALLOYS. EFTS OF OVEREXP: BEEN
THOROUGHLY INVESTIGATED. TARGET ORGAN DATA: BEHAVIORAL (SOMNOLENCE,
CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD, EXCITEMENT, MUSCLE WEAK
NESS). LUNGS, THORAX OR RESPIRATION (DYSPNAE, OTHER CHANGES).
MATERNAL EFFECTS (PARTURITION). EFFECTS ON (ING 2)

Melt/Freeze Pt:M.P/F.P Text:1258F,681C
Vapor Pres:1 @ 745C
Spec Gravity:3.130
Appearance and Odor:SOLID.

Stability Indicator/Materials to Avoid:YES
STRONG REDUCING AGENTS, STRONG ACIDS, STEEL, ALUMINUM, ALKALI METALS,
BRASS, MAGNESIUM, ZINC, CADMIUM, COPPER, (SUPDAT)
Stability Condition to Avoid:MAY DECOMPOSE ON EXPOSURE TO LIGHT, AIR
AND MOISTURE.
Hazardous Decomposition Products:TOXIC FUMES OF HYDROGEN IODIDE,
POTASSIUM OXIDES.

Waste Disposal Methods:CONTACT A LICENSED PROFESSIONAL WASTE DISPOSAL
SERVICE TO DISPOSE OF THIS MATERIAL. OBSERVE ALL FEDERAL, STATE AND
LOCAL ENVIRONMENTAL REGULATIONS.

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