Product ID:71688 SODIUM HYDROXIDE
MSDS Date:07/31/1996
FSC:6810
NIIN:00F055821
MSDS Number: CGVTK

SIGMA CHEMICAL COMPANY

3050 SPRUCE ST
SAINT LOUIS, MO 63178-5000
US

Emergency Phone: 314-771-5765/800-325-3010

Info Phone: 314-771-5765/800-325-3010

Cage: 21076

SIGMA CHEMICAL COMPANY

14508 ST LOUIS, MO 63178 US

Telephone: 314-771-5765

Cage: 21076

SODIUM HYDROXIDE, CAUSTIC SODA, LYE *98-1*

CAS: 1310-73-2

RTECS: WB4900000

OSHA PEL 2 MG/CUM

ACGIH TLV: 2 MG/CUM CEILING

EPA Report Quantity: 1000 LBS

DOT Report Quantity: 1000 LBS

Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:HARMFUL IF SWALLOWED, INHALED/ABSORBED
THROUGH SKIN. MATERIAL IS EXTREMELY DESTRUCTIVE TO TISSUE OF THE
MUCOUS MEMBRANES & UPPER RESPIRATORY TRACT, EYES & SKIN. CAUSES
SEVERE BURNS. INHALATION: MAY BE FATAL AS A RESULT OF SPASM,
INFLAMMATION/EDEMA OF THE LARYNX & BRONCHI, CHEMICAL PNEUMONITIS &
PULMONARY EDEMA.
Explanation of Carcinogenicity:NONE
Effects of Overexposure:BURNS, INFLAMMATION, COUGHING, WHEEZING,
LARYNGITIS, SHORTNESS OF BREATH, HEADACHE, NAUSEA, VOMITING

First Aid:EYES/SKIN: IMMEDIATELY FLUSH W/COPIOUS AMOUNTS OF WATER FOR
15 MINS. INHALATION: REMOVE TO FRESH AIR. GIVE CPR/OXYGEN IF
NECESSARY. INGESTION: WASH OUT MOUTH W/WATER IF CONSCIOUS. OBTAIN
MEDICAL ATTEN TION IN ALL CASES.

Extinguishing Media:USE EXTINGUISHING MEDIA APPROPRIATE TO SURROUNDING
FIRE CONDITIONS, DON'T USE WATER.
Fire Fighting Procedures:WEAR SELF CONTAINED BREATHING APPARATUS &
PROTECTIVE CLOTHING TO PREVENT CONTACT W/SKIN & EYES.
Unusual Fire/Explosion Hazard:EMITS TOXIC FUMES UNDER FIRE CONDITIONS.

Spill Release Procedures:EVACUATE AREA. WEAR SELF CONTAINED BREATHING
APPARATUS, RUBBER BOOTS & HEAVY RUBBER GLOVES. SWEEP UP, PLACE IN A
BAG & HOLD FOR WASTE DISPOSAL.

Handling and Storage Precautions:STORE IN A COOL, DRY PLACE. PRODUCT IS
EXTREMELY HYGROSCOPIC, AIR SENSITIVE. KEEP TIGHTLY CLOSED.
Other Precautions:DON'T BREATHE DUST. DON'T GET IN EYES, ON SKIN/ON
CLOTHING. AVOID PROLONGED/REPEATED EXPOSURE. WEAR SUITABLE
PROTECTIVE CLOTHING, GLOVES, EYE/FACE PROTECTION.

Respiratory Protection:WEAR APPROPRIATE NIOSH/MSHA APPROVED RESPIRATOR.
Ventilation:USE ONLY IN A CHEMICAL FUME HOOD.
Protective Gloves:CHEMICAL RESISTANT
Eye Protection:SAFETY GOGGLES, FACESHIELD 8" MINIMUM
Other Protective Equipment:PROTECTIVE CLOTHING, SAFETY SHOWER, EYE BATH
Work Hygienic Practices:REMOVE/LAUNDER CONTAMINATED CLOTHING BEFORE
REUSE. REMOVE/DISCARD CONTAMINATED SHOES. WASH THOROUGLY AFTER
HANDLING.
Supplemental Safety and Health
DISPOSAL CONT'D: THE HYDROLYSIS & NEUTALIZATIN REACTIONS MAY GENERATE
HEAT & FUMES WHICH CAN BE CONTROLLED BY THE RATE OF ADDITION.

Appearance and Odor:SOLID

Stability Indicator/Materials to Avoid:YES
STRONG OXIDIZING AGENTS, STRONG ACIDS, ORGANIC MATERIALS, CHLORINATED
SOLVENTS, ALUMINUM, TIN, ZINC, NITROMETHANE
Stability Condition to Avoid:MOISTURE
Hazardous Decomposition Products:CONTACT W/ALUMINUM/TIN/ZINC, LIBERATES
HYDROGEN GAS. CONTACT W/NITROMETHANE CAUSES FORMATION OF SHOCK
SENSITIVE SALTS.

Waste Disposal Methods:CAUTIOUSLY ADD TO A LARGE EXCESS OF WATER.
ADJUST THE PH TO 7, SEPARATE SOLIDS/LIQUIDS & PACKAGE THEM. FLUSH
THE AQUEOUS SOLUTION DOWN THE DRAIN W/PLENTY OF WATER. DISPOSE OF
IAW/LOCAL, STATE & FEDERA L REGULATIONS. (SEE SUPP)

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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.