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MSDS for SODIUM HYDROXIDE Page 1

1 - PRODUCT IDENTIFICATION

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PRODUCT NAME: SODIUM HYDROXIDE

FORMULA: NAOH

FORMULA WT: 40.00

CAS NO.: 01310-73-2

NIOSH/RTECS NO.: WB4900000

COMMON SYNONYMS: CAUSTIC SODA; SODIUM HYDRATE; LYE

PRODUCT CODES: 3730,3722,5312,5104,3729,3734,3726,5045,3728,3723,5022,3736

EFFECTIVE: 08/28/86

REVISION #02

PRECAUTIONARY LABELLING

BAKER SAF-T-DATA(TM) SYSTEM

HEALTH - 3 SEVERE (POISON)

FLAMMABILITY - 0 NONE

REACTIVITY - 2 MODERATE

CONTACT - 4 EXTREME (CORROSIVE)

HAZARD RATINGS ARE 0 TO 4 (0 = NO HAZARD; 4 = EXTREME HAZARD).

LABORATORY PROTECTIVE EQUIPMENT

GOGGLES; LAB COAT; VENT HOOD; PROPER GLOVES

PRECAUTIONARY LABEL STATEMENTS

POISON DANGER

CAUSES SEVERE BURNS

MAY BE FATAL IF SWALLOWED

DO NOT GET IN EYES, ON SKIN, ON CLOTHING. AVOID SPATTERING BY SLOWLY

ADDING TO SOLUTION.

AVOID BREATHING DUST. KEEP IN TIGHTLY CLOSED CONTAINER. USE WITH ADEQUATE

VENTILATION. WASH THOROUGHLY AFTER HANDLING.

SAF-T-DATA(TM) STORAGE COLOR CODE: WHITE STRIPE (STORE SEPARATELY)

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2 - HAZARDOUS COMPONENTS

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COMPONENT % CAS NO.

SODIUM HYDROXIDE 90-100 1310-73-2

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3 - PHYSICAL DATA

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BOILING POINT: 1390 C ( 2534 F) VAPOR PRESSURE(MM HG): 0

MELTING POINT: 318 C ( 604 F) VAPOR DENSITY(AIR=1): N/A

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MSDS for SODIUM HYDROXIDE Page 2

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SPECIFIC GRAVITY: 2.13 EVAPORATION RATE: N/A

(H2O=1) (BUTYL ACETATE=1)

SOLUBILITY(H2O): APPRECIABLE (MORE THAN 10 %) % VOLATILES BY VOLUME: 0

APPEARANCE & ODOR: WHITE, ODORLESS SOLID.

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4 - FIRE AND EXPLOSION HAZARD DATA

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FLASH POINT (CLOSED CUP N/A NFPA 704M RATING: 3-0-1

FLAMMABLE LIMITS: UPPER - N/A % LOWER - N/A %

FIRE EXTINGUISHING MEDIA

USE EXTINGUISHING MEDIA APPROPRIATE FOR SURROUNDING FIRE.

SPECIAL FIRE-FIGHTING PROCEDURES

FLOOD WITH WATER, DO NOT SPLATTER OR SPLASH THIS MATERIAL.

UNUSUAL FIRE & EXPLOSION HAZARDS

CONTACT WITH MOISTURE OR WATER MAY GENERATE SUFFICIENT HEAT TO

IGNITE COMBUSTIBLE MATERIALS.

REACTS WITH MOST METALS TO PRODUCE HYDROGEN GAS, WHICH CAN FORM AN

EXPLOSIVE MIXTURE WITH AIR.

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5 - HEALTH HAZARD DATA

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TLV LISTED DENOTES CEILING LIMIT.

THRESHOLD LIMIT VALUE (TLV/TWA): 2 MG/M3 ( PPM)

PERMISSIBLE EXPOSURE LIMIT (PEL): 2 MG/M3 ( PPM)

TOXICITY: LD50 (IPR-MOUSE)(MG/KG) - 40

CARCINOGENICITY: NTP: NO IARC: NO Z LIST: NO OSHA REG: NO

EFFECTS OF OVEREXPOSURE

EXCESSIVE INHALATION OF DUST IS IRRITATING AND MAY BE SEVERELY DAMAGING

TO RESPIRATORY PASSAGES AND/OR LUNGS.

CONTACT WITH SKIN OR EYES MAY CAUSE SEVERE IRRITATION OR BURNS.

INGESTION IS HARMFUL AND MAY BE FATAL.

INGESTION MAY CAUSE SEVERE BURNING OF MOUTH AND STOMACH.

INGESTION MAY CAUSE NAUSEA AND VOMITING.

TARGET ORGANS

EYES, SKIN, RESPIRATORY SYSTEM

MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE

NONE IDENTIFIED

ROUTES OF ENTRY

INHALATION, INGESTION, EYE CONTACT, SKIN CONTACT

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MSDS for SODIUM HYDROXIDE Page 3

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EMERGENCY AND FIRST AID PROCEDURES

CALL A PHYSICIAN.

IF SWALLOWED, DO NOT INDUCE VOMITING; IF CONSCIOUS, GIVE LARGE AMOUNTS OF

WATER. FOLLOW WITH DILUTED VINEGAR, FRUIT JUICE OR WHITES OF EGGS, BEATEN

WITH WATER.

IF INHALED, REMOVE TO FRESH AIR. IF NOT BREATHING, GIVE ARTIFICIAL

RESPIRATION. IF BREATHING IS DIFFICULT, GIVE OXYGEN.

IN CASE OF CONTACT, IMMEDIATELY FLUSH EYES OR SKIN WITH PLENTY OF WATER FOR

AT LEAST 15 MINUTES WHILE REMOVING CONTAMINATED CLOTHING AND SHOES.

WASH CLOTHING BEFORE RE-USE.

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6 - REACTIVITY DATA

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STABILITY: STABLE HAZARDOUS POLYMERIZATION: WILL NOT OCCUR

CONDITIONS TO AVOID: MOISTURE

INCOMPATIBLES: WATER, STRONG ACIDS, MOST COMMON METALS,

COMBUSTIBLE MATERIALS, ORGANIC MATERIALS,

ZINC, ALUMINUM, MAGNESIUM, HALOGENATED HYDROCARBONS

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7 - SPILL AND DISPOSAL PROCEDURES

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STEPS TO BE TAKEN IN THE EVENT OF A SPILL OR DISCHARGE

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.

J. T. BAKER NEUTRACIT-2(R) CAUSTIC NEUTRALIZER IS RECOMMENDED

FOR SPILLS OF THIS PRODUCT.

DISPOSAL PROCEDURE

DISPOSE IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE, AND LOCAL

ENVIRONMENTAL REGULATIONS.

EPA HAZARDOUS WASTE NUMBER: D002, D003 (CORROSIVE, REACTIVE WASTE)

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8 - PROTECTIVE EQUIPMENT

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VENTILATION: USE GENERAL OR LOCAL EXHAUST VENTILATION TO MEET

TLV REQUIREMENTS.

RESPIRATORY PROTECTION: RESPIRATORY PROTECTION REQUIRED IF AIRBORNE

CONCENTRATION EXCEEDS TLV. AT CONCENTRATIONS UP

TO 60 PPM, A HIGH-EFFICIENCY PARTICULATE

RESPIRATOR IS RECOMMENDED. ABOVE THIS LEVEL, A

SELF-CONTAINED BREATHING APPARATUS IS ADVISED.

EYE/SKIN PROTECTION: SAFETY GOGGLES, UNIFORM, APRON, RUBBER GLOVES ARE

RECOMMENDED.

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MSDS for SODIUM HYDROXIDE Page 4

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9 - STORAGE AND HANDLING PRECAUTIONS

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SAF-T-DATA(TM) STORAGE COLOR CODE: WHITE STRIPE (STORE SEPARATELY)

SPECIAL PRECAUTIONS

KEEP CONTAINER TIGHTLY CLOSED. STORE IN CORROSION-PROOF AREA.

STORE IN A DRY AREA.

ISOLATE FROM INCOMPATIBLE MATERIALS.

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10 - TRANSPORTATION DATA AND ADDITIONAL INFORMATION

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DOMESTIC (D.O.T.)

PROPER SHIPPING NAME SODIUM HYDROXIDE, DRY SOLID

HAZARD CLASS CORROSIVE MATERIAL (SOLID)

UN/NA UN1823

LABELS CORROSIVE

REPORTABLE QUANTITY 1000 LBS.

INTERNATIONAL (I.M.O.)

PROPER SHIPPING NAME SODIUM HYDROXIDE, SOLID

HAZARD CLASS 8

UN/NA UN1823

LABELS CORROSIVE