Product ID:POTASSIUM HYDROXIDE
MSDS Date:01/24/1994
FSC:6810
NIIN:00-136-6000
MSDS Number: BXFPP

J.T. BAKER COMPANY

222 RED SCHOOL LANE
PHILLIPSBURG, NJ 08865-2219
US

Emergency Phone: 201-859-2151

Info Phone: 201-859-2151

Cage: 70829

MALLINCKRODT BAKER, INC.

PHILLIPSBURG, NJ 08865 US

Telephone: 800-582-2537

Cage: 70829

POTASSIUM HYDROXIDE (SARA III)

CAS: 1310-58-3

RTECS: TT2100000

Fraction By Weight: 85-100%

OSHA PEL C, 2 MG/M3

ACGIH TLV: C 2 MG/M3; 9192

EPA Report Quantity: 1000 LBS

DOT Report Quantity: 1000 LBS

LD50 LC50 Mixture:ORAL LD50 (RAT) IS 365 MG/KG
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:CHRONIC EFFECTS: LUNG DAMAGE.
Explanation of Carcinogenicity:NONE IDENTIFIED.
Effects of Overexposure:INHALATION-SEVERE IRRITATION OR BURNS OF
RESPIRATORY SYSTEM, ULCERATION OF MUCOUS MEMEBRANES. SKIN-SEVERE
BURNS. EYE-SEVERE BURNS, PERMANENT EYE DAMAGE. INGESTION-SEVERE
BURNS TO MOUTH, THROAT AND STO MACH, & MAY BE FATAL.
Medical Cond Aggravated by Exposure:NONE IDENTIFIED.

First Aid:INGESTION-CALL A PHYSICIAN. DO NOT INDUCE VOMITING. IF
CONSCIOUS, GIVE LARGE AMOUNTS OF WATER, THEN DILUTED VINEGAR, FRUIT
JUICE OR EGG WHITES BEATEN WITH WATER. INHALATION-REMOVE TO FRESH
AIR. IF NOT BREATHING, PERFORM CPR. IF BREATHING ISHARD, GIVE
OXYGEN. SKIN-FLUSH WITH PLENTY OF WATER FOR AT LEAST 15 MIN WHILE
REMOVING SOILED CLOTHING. EYE-FLUSH WITH WATER FOR AT LEAST 15 MIN.

Extinguishing Media:USE EXTINGUISHING MEDIA APPROPIATE FOR SURROUNDING
FIRE.
Fire Fighting Procedures:FIREFIGHTERS SHOULD WEAR PROPER PROTECTIVE
EQUIPMENT & SELF-CONTAINED BREATHING APPARATUS WITH FULL FACEPIECE
OPERATED IN POSITIVE PRESSURE MODE.
Unusual Fire/Explosion Hazard:A VIOLENT EXOTHERMIC REACTION OCCURS WITH
WATER. SUFFICIENT HEAT MAY BE PRODUCED TO IGNITE COMBUSTIBLE
MATERIALS. REACTS WITH MOST METALS TO FORM HYDROGEN GAS.

Spill Release Procedures:WEAR SELF-CONTAINED BREATHING APPARATUS AND
FULL PROTECTIVE CLOTHING. WITH CLEAN SHOVEL, CAREFULLY PLACE
MATERIAL INTO CLEAN, DRY CONTAINER AND COVER; REMOVE FROM AREA.
FLUSH SPILL AREA WITH WATER.
Neutralizing Agent:NEUTRACIT-2 OR BACAIM CAUSTIC NEUTRALIZERS ARE
RECOMMENDED FOR SPILL.

Handling and Storage Precautions:KEEP CONTAINERS TIGHTLY CLOSED. STORE
IN CORROSION PROOF AREA. ISOLATE FROM INCOMPATIBLE MATERIALS.
Other Precautions:NOTE: WHEN MIXING WITH WATER, ALWAYS ADD CAUSTIC
SLOWLY TO WATER. CONTINNOUSLY STIR SOLUTION TO MINIMIZE SPATTERING.
NEVER ADD WATER TO CAUSTIC. MATERIAL IS HYGROSCOPIC.

Respiratory Protection:RESPIRATORY PROTECTION REQUIRED IF AIRBORNE
CONCENTRATIONS EXCEED TLV. AT CONCENTRATIONS UP TO 43 PPM,,, A
HIGH-EFFICIENCY PARTICULATE RESPIRATOR IS RECOMMENDED. ABOVE THIS
LEVEL, A SELF-CONTAINED BRE ATHING APPARATUS IS ADVISED.
Ventilation:USE GENERAL OR LOCAL EXHAUST VENTILATION TO MEET TLV
REQUIREMENTS.
Protective Gloves:NEOPRENE GLOVES ARE RECOMMENDED.
Eye Protection:SAFETY GOGGLES ARE RECOMMENDED.
Other Protective Equipment:UNIFORM, APRON ARE RECOMMENDED.
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health
CORROSIVE.

HCC:B1
Boiling Pt:B.P. Text:2408F,1320C
Melt/Freeze Pt:M.P/F.P Text:680F,360C
Spec Gravity:2.04
pH:14
Solubility in Water:APPRECIABLE (>10%)
Appearance and Odor:WHITE TO LIGHT YELLOW PELLETS. ODORLESS.
Percent Volatiles by Volume:0

Stability Indicator/Materials to Avoid:YES
WATER, STRONG ACIDS, COMBUSTIBLE MATERIALS, ORGANIC MATERIALS, ZINC,
ALUMINUM, TIN, CARBON DIOXIDE.
Stability Condition to Avoid:MOISTURE, HEAT.
Hazardous Decomposition Products:HYDROGEN GAS.

Waste Disposal Methods:DISPOSE IN ACCORDANCE WITH ALL APPLICABLE LOCAL,
STATE AND FEDERAL ENVIRONMENTAL REGULATIONS.

Disclaimer (provided with this information by the compiling agencies):
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.