------------------------------------------------------------------------------ MSDS for SODIUM BISULFITE Page 1 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ 1 - PRODUCT IDENTIFICATION ------------------------------------------------------------------------------ PRODUCT NAME: SODIUM BISULFITE FORMULA: NAHSO3 FORMULA WT: 104.06 CAS NO.: 07631-90-5 NIOSH/RTECS NO.: VZ2000000 COMMON SYNONYMS: HYDROGEN SULFITE SODIUM; SODIUM ACID SULFITE; SODIUM HYDROGEN SULFITE PRODUCT CODES: 3556,3557 EFFECTIVE: 08/18/86 REVISION #02 PRECAUTIONARY LABELLING BAKER SAF-T-DATA(TM) SYSTEM HEALTH - 2 MODERATE FLAMMABILITY - 0 NONE REACTIVITY - 1 SLIGHT CONTACT - 1 SLIGHT HAZARD RATINGS ARE 0 TO 4 (0 = NO HAZARD; 4 = EXTREME HAZARD). LABORATORY PROTECTIVE EQUIPMENT SAFETY GLASSES; LAB COAT PRECAUTIONARY LABEL STATEMENTS WARNING HARMFUL IF SWALLOWED OR INHALED MAY CAUSE IRRITATION MAY CAUSE ALLERGIC REACTION. AVOID CONTACT WITH EYES, SKIN, CLOTHING. AVOID BREATHING DUST. KEEP IN TIGHTLY CLOSED CONTAINER. USE WITH ADEQUATE VENTILATION. WASH THOROUGHLY AFTER HANDLING. SAF-T-DATA(TM) STORAGE COLOR CODE: ORANGE (GENERAL STORAGE) ------------------------------------------------------------------------------ 2 - HAZARDOUS COMPONENTS ------------------------------------------------------------------------------ COMPONENT % CAS NO. SODIUM BISULFITE 90-100 7631-90-5 ------------------------------------------------------------------------------ 3 - PHYSICAL DATA ------------------------------------------------------------------------------ BOILING POINT: N/A VAPOR PRESSURE(MM HG): N/A MELTING POINT: N/A VAPOR DENSITY(AIR=1): N/A ------------------------------------------------------------------------------ MSDS for SODIUM BISULFITE Page 2 ------------------------------------------------------------------------------ SPECIFIC GRAVITY: 1.48 EVAPORATION RATE: N/A (H2O=1) (BUTYL ACETATE=1) SOLUBILITY(H2O): APPRECIABLE (MORE THAN 10 %) % VOLATILES BY VOLUME: 0 APPEARANCE & ODOR: WHITE POWDER WITH SO2 ODOR. ------------------------------------------------------------------------------ 4 - FIRE AND EXPLOSION HAZARD DATA ------------------------------------------------------------------------------ FLASH POINT (CLOSED CUP N/A FLAMMABLE LIMITS: UPPER - N/A % LOWER - N/A % FIRE EXTINGUISHING MEDIA USE WATER SPRAY. SPECIAL FIRE-FIGHTING PROCEDURES FIREFIGHTERS SHOULD WEAR PROPER PROTECTIVE EQUIPMENT AND SELF-CONTAINED (POSITIVE PRESSURE IF AVAILABLE) BREATHING APPARATUS WITH FULL FACEPIECE. MOVE EXPOSED CONTAINERS FROM FIRE AREA IF IT CAN BE DONE WITHOUT RISK. USE WATER TO KEEP FIRE-EXPOSED CONTAINERS COOL. UNUSUAL FIRE & EXPLOSION HAZARDS CLOSED CONTAINERS EXPOSED TO HEAT MAY EXPLODE. TOXIC GASES PRODUCED SULFUR DIOXIDE ------------------------------------------------------------------------------ 5 - HEALTH HAZARD DATA ------------------------------------------------------------------------------ THRESHOLD LIMIT VALUE (TLV/TWA): 5 MG/M3 ( PPM) TOXICITY: LD50 (ORAL-RAT)(MG/KG) - 2000 LD50 (IPR-RAT)(MG/KG) - 650 LD50 (IV-RAT) (MG/KG) - 115 CARCINOGENICITY: NTP: NO IARC: NO Z LIST: NO OSHA REG: NO EFFECTS OF OVEREXPOSURE CONTACT WITH SKIN OR EYES MAY CAUSE SEVERE IRRITATION OR BURNS. ALLERGIC REACTION MAY DEVELOP. EXPOSURES TO SMALL AMOUNTS OF SULFITES HAVE BEEN REPORTED TO CAUSE HYPERSENSITIVITY REACTIONS IN CERTAIN INDIVIDUALS, ESPECIALLY ASTHMATICS. A SEVERE ALLERGIC REATION MAY BE FATAL. TARGET ORGANS BRAIN, GI TRACT, RESPIRATORY SYSTEM, SKIN ------------------------------------------------------------------------------ MSDS for SODIUM BISULFITE Page 3 ------------------------------------------------------------------------------ MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE ASTHMA ROUTES OF ENTRY INHALATION, SKIN CONTACT EMERGENCY AND FIRST AID PROCEDURES CALL A PHYSICIAN. IF SWALLOWED, IF CONSCIOUS, IMMEDIATELY INDUCE VOMITING. 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 WITH PLENTY OF WATER FOR AT LEAST 15 MINUTES. FLUSH SKIN WITH WATER. ------------------------------------------------------------------------------ 6 - REACTIVITY DATA ------------------------------------------------------------------------------ STABILITY: STABLE HAZARDOUS POLYMERIZATION: WILL NOT OCCUR CONDITIONS TO AVOID: NONE DOCUMENTED INCOMPATIBLES: STRONG ACIDS, STRONG OXIDIZING AGENTS DECOMPOSITION PRODUCTS: OXIDES OF SULFUR, OXIDES ------------------------------------------------------------------------------ 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. WITH CLEAN SHOVEL, CAREFULLY PLACE MATERIAL INTO CLEAN, DRY CONTAINER AND COVER; REMOVE FROM AREA. FLUSH SPILL AREA WITH WATER. DISPOSAL PROCEDURE DISPOSE IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE, AND LOCAL ENVIRONMENTAL REGULATIONS. ------------------------------------------------------------------------------ 8 - PROTECTIVE EQUIPMENT ------------------------------------------------------------------------------ VENTILATION: USE GENERAL OR LOCAL EXHAUST VENTILATION TO MEET TLV REQUIREMENTS. RESPIRATORY PROTECTION: NONE REQUIRED WHERE ADEQUATE VENTILATION CONDITIONS EXIST. IF AIRBORNE CONCENTRATION IS HIGH, A DUST/MIST RESPIRATOR IS RECOMMENDED. IF CONCENTRATION EXCEEDS CAPACITY OF RESPIRATOR, A SELF-CONTAINED BREATHING APPARATUS IS ADVISED. EYE/SKIN PROTECTION: SAFETY GLASSES WITH SIDESHIELDS, PROPER GLOVES ARE RECOMMENDED. ------------------------------------------------------------------------------ 9 - STORAGE AND HANDLING PRECAUTIONS ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ MSDS for SODIUM BISULFITE Page 4 ------------------------------------------------------------------------------ SAF-T-DATA(TM) STORAGE COLOR CODE: ORANGE (GENERAL STORAGE) SPECIAL PRECAUTIONS KEEP CONTAINER TIGHTLY CLOSED. SUITABLE FOR ANY GENERAL CHEMICAL STORAGE AREA. ------------------------------------------------------------------------------ 10 - TRANSPORTATION DATA AND ADDITIONAL INFORMATION ------------------------------------------------------------------------------ DOMESTIC (D.O.T.) PROPER SHIPPING NAME SODIUM HYDROGEN SULFITE, SOLID HAZARD CLASS ORM-E LABELS NONE REPORTABLE QUANTITY 5000 LBS. INTERNATIONAL (I.M.O.) PROPER SHIPPING NAME CHEMICALS, N.O.S. (NON-REGULATED)