Product ID:DEARBORN 152, 10-071
MSDS Date:01/30/1996
FSC:6850
NIIN:00N060474
MSDS Number: CGYJZ

W R GRACE & CO

300 GENESEE ST
LAKE ZURICH, IL 60047-2458
US

Emergency Phone: 708-438-1800

Info Phone: 708-438-1800

Preparer: JEFF HAYES

Cage: 1BX64

W R GRACE & CO

LEXINGTON, MA 02173 US

Telephone: 713-479-7348

Cage: 1BX64

SODIUM HYDROXIDE (CERCLA)

CAS: 1310-73-2

RTECS: WB4900000

Fraction By Weight: 30-40%

OSHA PEL 2 MG/M3

ACGIH TLV: C 2 MG/M3

EPA Report Quantity: 1000 LBS

DOT Report Quantity: 1000 LBS

POTASSIUM HYDROXIDE (CERCLA)

CAS: 1310-58-3

RTECS: TT2100000

Fraction By Weight: 10-20%

OSHA PEL C 2 MG/M3

ACGIH TLV: C 2 MG/M3

EPA Report Quantity: 1000 LBS

DOT Report Quantity: 1000 LBS

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:TOX INFO: CORR TO TISS. ACUTE: INHAL:
MIST MAY IRRITATE RESP PASSAGES. INGEST: HARMFUL IF SWALLOWED; CORR
LIQ MAY CAUSE TISS DMG. SKIN: PRLNG/FREQUENT CONT WILL CAUSE IRRIT
& MAY CAUSE CHEM BURNS. EYE S: WILL CAUSE IRRIT; MAY CAUSE TISS
DMG/DESTRUCTION. CHRONIC: NONE SPECIFIED BY MANUFACTURER.
Explanation of Carcinogenicity:NOT RELEVANT.
Effects of Overexposure:SEE HEALTH HAZARDS.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:INHALATION: REMOVE TO FRESH AIR AND TREAT SYMPTOMS.
INGESTION: IF CONSCIOUS, GIVE WATER TO DILUTE AND CONTACT MD
IMMEDIATELY. DO NOT INDUCE VOMITING. SKIN: FLUSH WITH WATER THEN
WASH WITH SOAP AND WAT ER. REMOVE CONTAMINATED CLOTHING AND WASH
BEFORE REUSE. EYES: FLUSH IMMEDIATELY WITH WATER FOR AT LEAST 15
MINUTES AND CONTACT MD.

Flash Point:N/A(WATER-BASED)
Extinguishing Media:FOAM, CARBON DIOXIDE, DRY CHEMICAL.
Fire Fighting Procedures:WEAR NIOSH APPROVED SCBA & FULL PROTECTIVE
EQUIPMENT . KEEP DRUMS COOL AND INTACT; PRODUCT IS CAUSTIC,
CORROSIVE LIQUID.
Unusual Fire/Explosion Hazard:NONE KNOWN.

Spill Release Procedures:WEAR PROTECTIVE CLOTHING INCLUDING NIOSH
APPROVED RESPIRATOR. DIKE SPILL AND SOAK UP ON INERT ABSORB
MATERIAL. FLUSH AREA OF SPILL WITH WATER. COLLECTED MATERIAL MAY BE
CLASSIFIED AS RCRA HAZ WASTE DU E TO ITS CORROSIVENESS (D002).
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:KEEP CONTAINERS CLOSED WHEN NOT IN
USE. VENT CAREFULLY WHEN OPENING DRUM. ALKALINE CORROSIVE LIQUID!!!
Other Precautions:FOR INDUSTRIAL USE ONLY. KEEP OUT OF REACH OF
CHILDREN.

Respiratory Protection:WEAR NIOSH APPROVED DUST/MIST RESPIRATOR IF
EXPOSURE CRITERIA IS EXCEEDED.
Ventilation:USE ADEQUATE MECHANICAL VENTILATION.
Protective Gloves:IMPERVIOUS (RUBBER RECOMMENDED) GLOVES.
Eye Protection:ANSI APPRVD CHEM WORKERS GOGG (SUP DAT)
Other Protective Equipment:ANSI APPROVED EMERGENCY EYEWASH & DELUGE
SHOWER . LONG-SLEEVE WORK SHIRT & PANTS, CHEM PROT APRON.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
WASTE DISP METH: CERCLA REPORTABLE QTY OF PROD: 236 GAL DUE TO
POTASSIUM HYDROXIDE. EYE PROT: & FULL LENGTH FACESHIELD .

Boiling Pt:B.P. Text:>212F,>100C
Melt/Freeze Pt:M.P/F.P Text:0F,-18C
Spec Gravity:1.55 (H*2O=1)
pH:>13
Evaporation Rate & Reference:<1 (BUTYL ACETATE=1)
Solubility in Water:APPRECIABLE
Appearance and Odor:COLORLESS LIQUID, NO SPECIFIC ODOR

Stability Indicator/Materials to Avoid:YES
STRONG ACIDS AND OXIDIZERS.
Stability Condition to Avoid:EXTREME HEAT.
Hazardous Decomposition Products:NOT DETERMINED.

Waste Disposal Methods:DISP OF I/A/W LOC, STATE & FED REGS. PROD IS NOT
FORMULATED W/CHEMS SUBJECT TO REPORTING REQS OF SECTION 313 OF EMER
PLANNING & COMMUNITY RIGHT-TO-KNOW ACT OF 1986 & OF 40 CFR 372.
PROD IS CONSIDERED EPA CORR HAZ WASTE, D002 (40 CFR 261). (SUP
DAT)

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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.