------------------------------------------------------------------------------ MSDS for OSMIC ACID Page 1 ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ 1 - PRODUCT IDENTIFICATION ------------------------------------------------------------------------------ PRODUCT NAME: OSMIC ACID FORMULA: OSO4 FORMULA WT: 254.20 CAS NO.: 20816-12-0 NIOSH/RTECS NO.: RN1140000 COMMON SYNONYMS: OSMIC ACID ANHYDRIDE; OSMIUM OXIDE; OSMIUM TETROXIDE PRODUCT CODES: S776 EFFECTIVE: 11/24/86 REVISION #02 PRECAUTIONARY LABELLING BAKER SAF-T-DATA(TM) SYSTEM HEALTH - 4 EXTREME (POISON) FLAMMABILITY - 0 NONE REACTIVITY - 1 SLIGHT 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 IRRITATION ACUTE POISONING VIA ALL ROUTES OF EXPOSURE MAY BE FATAL EXCEPTIONAL HEALTH AND CONTACT HAZARDS - READ MATERIAL SAFETY DATA SHEET DO NOT GET IN EYES, ON SKIN, ON CLOTHING. DO NOT BREATHE VAPOR. KEEP IN TIGHTLY CLOSED CONTAINER. LOOSEN CLOSURE CAUTIOUSLY. USE WITH ADEQUATE VENTILATION. WASH THOROUGHLY AFTER HANDLING. IN CASE OF SPILL, FLUSH SPILL AREA WITH WATER. SAF-T-DATA(TM) STORAGE COLOR CODE: WHITE (CORROSIVE) ------------------------------------------------------------------------------ 2 - HAZARDOUS COMPONENTS ------------------------------------------------------------------------------ COMPONENT % CAS NO. OSMIC ACID 90-100 20816-12-0 ------------------------------------------------------------------------------ 3 - PHYSICAL DATA ------------------------------------------------------------------------------ BOILING POINT: 130 C ( 266 F) VAPOR PRESSURE(MM HG): 7 MELTING POINT: 40 C ( 104 F) VAPOR DENSITY(AIR=1): 8.8 ------------------------------------------------------------------------------ MSDS for OSMIC ACID Page 2 ------------------------------------------------------------------------------ SPECIFIC GRAVITY: 4.90 EVAPORATION RATE: N/A (H2O=1) (BUTYL ACETATE=1) SOLUBILITY(H2O): MODERATE (1 TO 10 %) % VOLATILES BY VOLUME: 0 APPEARANCE & ODOR: PALE YELLOW SOLID WITH ACRID, CHLORINE-LIKE 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, CARBON DIOXIDE, DRY CHEMICAL OR ORDINARY FOAM. SPECIAL FIRE-FIGHTING PROCEDURES FIREFIGHTERS SHOULD WEAR PROPER PROTECTIVE EQUIPMENT AND SELF-CONTAINED BREATHING APPARATUS WITH FULL FACEPIECE OPERATED IN POSITIVE PRESSURE MODE. MOVE CONTAINERS FROM FIRE AREA IF IT CAN BE DONE WITHOUT RISK. USE WATER TO KEEP FIRE-EXPOSED CONTAINERS COOL. UNUSUAL FIRE & EXPLOSION HAZARDS STRONG OXIDIZER. CONTACT WITH OTHER MATERIAL MAY CAUSE FIRE. TOXIC GASES PRODUCED OSMIUM FUMES ------------------------------------------------------------------------------ 5 - HEALTH HAZARD DATA ------------------------------------------------------------------------------ THRESHOLD LIMIT VALUE (TLV/TWA): .002 MG/M3 ( PPM) SHORT-TERM EXPOSURE LIMIT (STEL): .006 MG/M3 ( PPM) TOXICITY: LD50 (ORAL-RAT)(MG/KG) - 14 LD50 (ORAL-MOUSE)(MG/KG) - 162 LD50 (IPR-MOUSE)(MG/KG) - 14 CARCINOGENICITY: NTP: NO IARC: NO Z LIST: NO OSHA REG: NO EFFECTS OF OVEREXPOSURE DUST MAY CAUSE HEADACHE, COUGHING, DIZZINESS OR DIFFICULT BREATHING. CONTACT WITH SKIN OR EYES MAY CAUSE SEVERE IRRITATION OR BURNS. SKIN ABSORPTION MAY RESULT IN DERMATITIS. ACUTE POISONING VIA ALL ROUTES OF EXPOSURE MAY BE SEVERE ENOUGH TO BE FATAL. INGESTION MAY CAUSE IRRITATION AND BURNING TO MOUTH AND STOMACH. CHRONIC EFFECTS OF OVEREXPOSURE MAY INCLUDE KIDNEY AND/OR LIVER DAMAGE. PROLONGED EYE CONTACT MAY CAUSE PERMANENT DAMAGE TO THE CORNEA AND ------------------------------------------------------------------------------ MSDS for OSMIC ACID Page 3 ------------------------------------------------------------------------------ BLINDNESS MAY OCCUR. TARGET ORGANS EYES, SKIN MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE NONE IDENTIFIED ROUTES OF ENTRY EYE CONTACT, SKIN CONTACT, INGESTION, INHALATION 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 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: NONE DOCUMENTED INCOMPATIBLES: STRONG ACIDS, HYDROGEN CHLORIDE, ORGANIC MATERIALS DECOMPOSITION PRODUCTS: OSMIUM ------------------------------------------------------------------------------ 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. EPA HAZARDOUS WASTE NUMBER: P087 (ACUTE HAZARDOUS WASTE) ------------------------------------------------------------------------------ 8 - PROTECTIVE EQUIPMENT ------------------------------------------------------------------------------ VENTILATION: USE ADEQUATE GENERAL OR LOCAL EXHAUST VENTILATION TO KEEP FUME OR DUST LEVELS AS LOW AS POSSIBLE. ------------------------------------------------------------------------------ MSDS for OSMIC ACID Page 4 ------------------------------------------------------------------------------ RESPIRATORY PROTECTION: NONE REQUIRED WHERE ADEQUATE VENTILATION CONDITIONS EXIST. IF AIRBORNE CONCENTRATION EXCEEDS TLV, A SELF-CONTAINED BREATHING APPARATUS IS ADVISED. EYE/SKIN PROTECTION: SAFETY GOGGLES, UNIFORM, APRON, PROPER GLOVES ARE RECOMMENDED. ------------------------------------------------------------------------------ 9 - STORAGE AND HANDLING PRECAUTIONS ------------------------------------------------------------------------------ SAF-T-DATA(TM) STORAGE COLOR CODE: WHITE (CORROSIVE) SPECIAL PRECAUTIONS KEEP CONTAINER TIGHTLY CLOSED. STORE IN SECURE POISON AREA. LOOSEN CLOSURE CAUTIOUSLY. PRODUCT MUST BE REFRIGERATED AT 2 - 8 C (36 - 46 F). ------------------------------------------------------------------------------ 10 - TRANSPORTATION DATA AND ADDITIONAL INFORMATION ------------------------------------------------------------------------------ DOMESTIC (D.O.T.) PROPER SHIPPING NAME POISON B SOLID, N.O.S. (OSMIC ACID) HAZARD CLASS POISON B UN/NA UN2811 LABELS POISON INTERNATIONAL (I.M.O.) PROPER SHIPPING NAME OSMIUM TETROXIDE HAZARD CLASS 6.1 UN/NA UN2471 LABELS POISON