------------------------------------------------------------------------------ MSDS for POTASSIUM HYDROXIDE, 45% SOLUTION Page 1 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ 1 - PRODUCT IDENTIFICATION ------------------------------------------------------------------------------ PRODUCT NAME: POTASSIUM HYDROXIDE, 45% SOLUTION FORMULA: KOH FORMULA WT: 56.11 CAS NO.: 01310-58-3 NIOSH/RTECS NO.: TT2100000 COMMON SYNONYMS: CAUSTIC POTASH; LYE; POTASSIUM HYDRATE PRODUCT CODES: 5042,5341,3144,5379,3143 EFFECTIVE: 01/22/87 REVISION #03 PRECAUTIONARY LABELLING BAKER SAF-T-DATA(TM) SYSTEM HEALTH - 3 SEVERE (POISON) FLAMMABILITY - 0 NONE REACTIVITY - 1 SLIGHT CONTACT - 3 SEVERE (CORROSIVE) HAZARD RATINGS ARE 0 TO 4 (0 = NO HAZARD; 4 = EXTREME HAZARD). LABORATORY PROTECTIVE EQUIPMENT GOGGLES & SHIELD; LAB COAT & APRON; 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 BREATHING VAPOR. KEEP IN TIGHTLY CLOSED CONTAINER. WHEN DILUTING, ADD SLOWLY WITH AGITATION TO SURFACE OF SOLUTION TO AVOID VIOLENT SPATTERING. DO NOT ADD WATER TO CAUSTIC. IN CASE OF SPILL, FLUSH AREA WITH WATER SPRAY. WASH THOROUGHLY AFTER HANDLING. SAF-T-DATA(TM) STORAGE COLOR CODE: WHITE STRIPE (STORE SEPARATELY) ------------------------------------------------------------------------------ 2 - HAZARDOUS COMPONENTS ------------------------------------------------------------------------------ COMPONENT % CAS NO. POTASSIUM HYDROXIDE 45 1310-58-3 ------------------------------------------------------------------------------ 3 - PHYSICAL DATA ------------------------------------------------------------------------------ BOILING POINT: 133 C ( 271 F) VAPOR PRESSURE(MM HG): 2 MELTING POINT: -29 C ( -20 F) VAPOR DENSITY(AIR=1): N/A ------------------------------------------------------------------------------ MSDS for POTASSIUM HYDROXIDE, 45% SOLUTION Page 2 ------------------------------------------------------------------------------ SPECIFIC GRAVITY: 1.45 EVAPORATION RATE: N/A (H2O=1) (BUTYL ACETATE=1) SOLUBILITY(H2O): COMPLETE (IN ALL PROPORTIONS) % VOLATILES BY VOLUME: 55 APPEARANCE & ODOR: CLEAR SOLUTION, NO ODOR. ------------------------------------------------------------------------------ 4 - FIRE AND EXPLOSION HAZARD DATA ------------------------------------------------------------------------------ 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 FIREFIGHTERS SHOULD WEAR PROPER PROTECTIVE EQUIPMENT AND SELF-CONTAINED BREATHING APPARATUS WITH FULL FACEPIECE OPERATED IN POSITIVE PRESSURE MODE. UNUSUAL FIRE & EXPLOSION HAZARDS A VIOLENT EXOTHERMIC REACTION OCCURS WITH WATER. SUFFICIENT HEAT MAY BE PRODUCED TO IGNITE COMBUSTIBLE MATERIALS. REACTS WITH MOST METALS TO PRODUCE HYDROGEN GAS, WHICH CAN FORM AN EXPLOSIVE MIXTURE WITH AIR. TOXIC GASES PRODUCED HYDROGEN GAS ------------------------------------------------------------------------------ 5 - HEALTH HAZARD DATA ------------------------------------------------------------------------------ TLV LISTED DENOTES CEILING LIMIT. THRESHOLD LIMIT VALUE (TLV/TWA): 2 MG/M3 ( PPM) TOXICITY: LD50 (ORAL-RAT)(MG/KG) - 365 CARCINOGENICITY: NTP: NO IARC: NO Z LIST: NO OSHA REG: NO EFFECTS OF OVEREXPOSURE INHALATION OF VAPORS MAY CAUSE SEVERE IRRITATION OF THE RESPIRATORY SYSTEM. INHALATION MAY BE HARMFUL OR FATAL. CONTACT WITH SKIN OR EYES MAY CAUSE SEVERE IRRITATION OR BURNS. LIQUID MAY CAUSE PERMANENT EYE DAMAGE. INGESTION MAY RESULT IN SEVERE INTESTINAL IRRITATION WITH BURNS TO MOUTH. TARGET ORGANS EYES, SKIN ------------------------------------------------------------------------------ MSDS for POTASSIUM HYDROXIDE, 45% SOLUTION Page 3 ------------------------------------------------------------------------------ MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE NONE IDENTIFIED ROUTES OF ENTRY EYE CONTACT, SKIN CONTACT, INHALATION, INGESTION 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. ------------------------------------------------------------------------------ 6 - REACTIVITY DATA ------------------------------------------------------------------------------ STABILITY: STABLE HAZARDOUS POLYMERIZATION: WILL NOT OCCUR CONDITIONS TO AVOID: MOISTURE, HEAT INCOMPATIBLES: WATER, STRONG ACIDS, ORGANIC MATERIALS, ZINC, ALUMINUM DECOMPOSITION PRODUCTS: HYDROGEN ------------------------------------------------------------------------------ 7 - SPILL AND DISPOSAL PROCEDURES ------------------------------------------------------------------------------ STEPS TO BE TAKEN IN THE EVENT OF A SPILL OR DISCHARGE WEAR SELF-CONTAINED BREATHING APPARATUS AND FULL PROTECTIVE CLOTHING. STOP LEAK IF YOU CAN DO SO WITHOUT RISK. VENTILATE AREA. CAREFULLY NEUTRALIZE SPILL WITH DILUTE HCL. FLUSH AREA WITH FLOODING AMOUNTS OF WATER. (USE CAUTION.) 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 (CORROSIVE WASTE) ------------------------------------------------------------------------------ 8 - PROTECTIVE EQUIPMENT ------------------------------------------------------------------------------ VENTILATION: USE GENERAL OR LOCAL EXHAUST VENTILATION TO MEET TLV REQUIREMENTS. ------------------------------------------------------------------------------ MSDS for POTASSIUM HYDROXIDE, 45% SOLUTION Page 4 ------------------------------------------------------------------------------ RESPIRATORY PROTECTION: A RESPIRATOR WITH DUST/MIST FILTER IS RECOMMENDED. IF AIRBORNE CONCENTRATION EXCEEDS TLV, A SELF- CONTAINED BREATHING APPARATUS IS ADVISED. EYE/SKIN PROTECTION: SAFETY GOGGLES AND FACE SHIELD, UNIFORM, PROTECTIVE SUIT, NEOPRENE GLOVES ARE RECOMMENDED. ------------------------------------------------------------------------------ 9 - STORAGE AND HANDLING PRECAUTIONS ------------------------------------------------------------------------------ SAF-T-DATA(TM) STORAGE COLOR CODE: WHITE STRIPE (STORE SEPARATELY) SPECIAL PRECAUTIONS KEEP CONTAINER TIGHTLY CLOSED. STORE IN CORROSION-PROOF AREA. WHEN MIXING THE CAUSTIC WITH WATER, ALWAYS ADD THE CAUSTIC SLOWLY TO THE WATER, WHILE CONTINUOUSLY STIRRING, TO MINIMIZE SPATTERING. DO NOT ADD WATER TO CAUSTIC. ------------------------------------------------------------------------------ 10 - TRANSPORTATION DATA AND ADDITIONAL INFORMATION ------------------------------------------------------------------------------ DOMESTIC (D.O.T.) PROPER SHIPPING NAME POTASSIUM HYDROXIDE, SOLUTION HAZARD CLASS CORROSIVE MATERIAL (LIQUID) UN/NA UN1814 LABELS CORROSIVE REPORTABLE QUANTITY 1000 LBS. INTERNATIONAL (I.M.O.) PROPER SHIPPING NAME POTASSIUM HYDROXIDE, SOLUTION HAZARD CLASS 8 UN/NA UN1814 LABELS CORROSIVE