MATERIAL SAFETY DATA SHEET 07/08/2007
SECTION 1: PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: OSMIUM TETROXIDE
SYNONYMS: OSMIC ACID, OSMIC ACID ANHYDRIDE
PRODUCT CODES: 19100 -19134
MANUFACTURER: ELECTRON MICROSCOPY SCIENCES
DIVISION: 1560 INDUSTRY ROAD/P.O.BOX 550
ADDRESS: HATFIELD PA 19440
EMERGENCY PHONE: 215-412-8400
CHEMTREC PHONE: 800-424-9300
FAX PHONE: 215-412-8450
CHEMICAL NAME: OSMIUM TETROXIDE
CHEMICAL FAMILY: PLATINUM GROUP METAL SALTS
CHEMICAL FORMULA: 0s04
PRODUCT USE: RESEARCH
SECTION 2: COMPOSITION/INFORMATION ON INGREDIENTS
INGREDIENT:
OSMIUM TETROXIDE/OSMIUM OXIDE
CAS NO. % WT % VOL SARA 313 REPORTABLE
20816-12-0 99.9
mg/m3
ppm
OSHA PEL-TWA: 0.002mg/m3
OSHA PEL STEL :
OSHA PEL CEILING:
ACGIH TLV-TWA: 0.20 ppb
ACGIH TLV STEL: 0.60 ppb
ACGIH TLV CEILING:
SECTION 2 NOTES:
THE SUBSTANCE CA BE ABSORBED INTO THE BODY BY INHALATION OF ITS VAPORS, BY INHALATION OF ITS
AEROSOL AND BY INGESTION. A HARMFUL CONTAMINATION OF AIR CAN BE REACHED VERY QUICKLY ON
EVAPORATION OF THIS SUBSTANCE AT 20 DEGREE C.
SECTION 3: HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW: DANGER! MAY BE FATAL IF SWALLOWED OR INHALED. CAUSES SEVERE
IRRITATION TO EYES, SKIN AND RESPIRATORY TRACT.
ROUTES OF ENTRY: EYES: LIKELY, INHALATION: LIKELY, SKIN: LIKELY, INGESTION: LIKELY
POTENTIAL HEALTH EFFECTS
EYES : REDNESS, PAIN, BLURRED VISON, LOSS OF VISION, SEVERE DEEP BURNS.
SKIN: POSSIBLE SKIN DISCOLORATION (GREEN OR BLACK), REDNESS, SKIN BURNS, PAIN, BLISTERS.
INGESTION: ABDOMINAL CRAMPS, BURNING SENSATON, SHOCK OR COLLAPSE.
INHALATION: BURNING SENSATION, COUGH, HEADACHE, WHEEZING, SHORTNESS OF BREATH,
VISUAL DISTURBANCES, SYMPTOMS MAY BE DELAYED.
ACUTE HEALTH HAZARDS: AVOID AL CONTACT WITH THIS CHEMICAL
CHRONIC HEALTH HAZARDS: TARGET ORGAN EFFECTS-EYES, SKIN, AND RESPIRATORY SYSTEM
PAGE 1 OF 6
MATERIAL SAFETY DATA SHEET 07/08/2007
MEDICAL CONDITIONS GENERALLY AGGRAVATED BY EXPOSURE: POTENTIAL KIDNEY DAMAGE.
CARCINOGENICITY
OSHA: ACGIH: NTP: IARC:
OTHER: NO NO NONE
SECTION 4: FIRST AID MEASURES
EYES: FIRST RINSE WITH PLENTY OF WATER FOR 15 MINUTES, THEN CONTACT A PHYSICIAN IMMEDIATELY.
SKIN: FIRST RINSE WITH PLENTY OF WATER FOR 15 MINUTES, THEN REMOVE CONTAMINATED CLOTHES AND
RINSE AGAIN. THEN CONTACT A PHYSICIAN IMMEDIATELY.
INGESTION: RINSE MOUTH. GIVE NOTHING TO DRINK. REST. SEEK MEDICAL ATTENTION IMMEDIATELY.
INHALATION: FRESH AIR, REST. HALF-UPRIGHT POSITION. ARTIFICIAL RESPIRATION IF INDICATED, SEEK
MEDICAL ATTENTION IMMEDIATELY.
NOTES TO PHYSICIANS OR FIRST AID PROVIDERS: NOT AVAILABLE
SECTION 5: FIRE-FIGHTING MEASURES
FLAMMABLE LIMITS IN AIR, UPPER: NOT APPLICABLE
(% BY VOLUME) LOWER:
FLASH POINT: NOT APPLICABLE
F: N/A
C: N/A
METHOD USED:
AUTOIGNITION TEMPERATURE: NOT APPLICABLE
F: N/A
C: N/A
NFPA HAZARD CLASSIFICATION
HEALTH: 4 FLAMMABILITY: 0 REACTIVITY: 1
OTHER: VERY TOXIC
HMIS HAZARD CLASSIFICATION
HEALTH: 4 FLAMMABILITY: 0 REACTIVITY: 1
PROTECTION: J
EXTINGUISHING MEDIA: IN CASE OF A FIRE IN THE SURROUNDING AREA, ALL EXTINGUISHING
AGENTS ALLOWED.
SPECIAL FIRE FIGHTING PROCEDURES: IN EVENT OF A FIRE, WEAR FULL PROTECTIVE CLOTHING
AND NIOSH-APPROVED SELF-CONTAINED BREATHING APPARATUS WITH FULL APPARATUS WITH
FULL FACEPIECE OPERATED IN The PRESSURE DEMAND OR OTHER POSITIVE PRESSURE MODE.
UNUSUAL FIRE AND EXPLOSION HAZARDS: 040s IS A STRONG OXIDIZER AND MAY REACT EXPLOSIVELY
WITH MANY ORGANIC COMPOUNDS. RISK OF FIRE AND EXPLOSION WHEN MIXED WITH COMBUSTIBLE
SUBSTANCES. NO CONTACT WITH FLAMMABLE SUBSTANCES. NOT COMBUSTIBLE BUT ENHANCES
COMBUSTION OF OTHER SUBSTANCES.
HAZARDOUS DECOMPOSITION PRODUCTS: WHEN HEATED TO DECOMPOSITION, EMITS HIGHLY
TOXIC FUMES OF OSMIUM.
SECTION 6: ACCIDENTAL RELEASE MEASURES
ACCIDENTAL RELEASE MEASURES: EVACUATE AREA IMMEDIATELY! CONSULT AN EXPERT. SWEEP SPILLED
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MATERIAL SAFETY DATA SHEET 07/08/2007
SUBSTANCE INTO CONTAINERS. IF APPROPRIATE, MOISTEN FIRST TO PREVENT DUSTING THEN REMOVE TO
SAFE PLACE. DO NOT ABSORB IN SAW-DUST OR OTHER COMBUSTIBLE MATERIAL. DO NOT LET THIS CHEMICAL
ENTER THE ENVIRONMENT (EXTRA PERSONAL PROTECTIVE EQUIPMENT WITH FULL PROTECTIVE EQUIPMENT
AND SELF-CONTAINED BREATHING APPARATUS IS A MUST).
SECTION 7: HANDLING AND STORAGE
HANDLING AND STORAGE: IF EYES ARE EXPOSED TO VAPOR OVER A SHORT PERIOD OF TIME, NIGHT VISION
WILL BE AFFECTED FOR ABOUT ONE EVENING. ONE WILL NOTICE COLORED HALOS AROUND LIGHTS. STORE
COMPATIBLE CHEMICAL-RESISTANT GLOVES. WASH HAND THOROUGHLY AFTER HANDLING.
OTHER PRECAUTIONS: 0.1 MGM3 SUPPLIED RESPIRATOR WITH A FULL FACEPIECE, ANY SELF-CONTAINED
BREATHING APPARATUS WITH A FULL FACEPIECE. ANY CHEMICAL CARTRIDGE RESPIRATOR WITH A HIGH
EFFICIENCY PARTICULATE FILTER WITH A FULL FACEPIECE AND CARTRIDGES PROVIDING PROTECTION AGAINST
OSMIC ACID. ANY AIR-PURIFYING FULL FACEPIECE RESPIRATOR (GAS MASK) WITH A CHIN STYLE FRON OR
BACK MOUNTED CANISTER PROVIDING PROTECTION AGAINST OSMIUM TETROXIDE AND HAVING A HIGH
EFFICIENCY PARTICULATE FILTER. 1 MG/M3 ANY SUPPLIED AIR RESPIRATOR WITH A FULL FACPIECE AND
OPERATED IN A PRESSURE-DEMAND OR OTHER POSITIVE PRESSURE MODE.
EMERGENCY OR PLANNED ENTRY IN UNKNOWN CONCENTRATION OR IMMEDIATELY DANGEROUS TO LIFE
OR HEALTH CONDITIONS. ANY SELF CONTAINED BREATHING APPARATUS WITH FULL FACEPIECE AND
OPERATED IN A PRESSURE-DEMAND OR OTHER POSITIVE PRESSURE MODE. ANY SELF 鈥揅ONTAINED BREATHING
APPARATUS.
ESCAPE: ANY AIR-PURIFYING FULL FACE PIECE RESPIRATOR (GAS MASK) WITH A CHIN STYLE OR FRONT OR
BACK MOUNTED CANISTER PROVIDING PROTECTION AGAINST OSMIUM TETROXIDE AND HAVING A HIGH
EFFICIENCY PARTICULATE FILTER. ANY APPROPRIATE ESCAPE TYPE SELF-CONTAINED BREATHING APPARATUS.
LDLH 1mg/m3
SECTION 8: EXPOSURE CONTROLS/PERSONAL PROTECTION
ENGINEERING CONTROLS: LOCAL EXHAUST: REQUIRED IN HANDLING AREA
MECHANICAL: DESIRABLE TO INSURE CONCENTRATION OF
MATERIAL BELOW TLV/TWA LEVELS.
OTHER: FUME HOOD
RESPIRATORY PROTECTION: CHEMICAL CARTRIDGE RESPIRATOR FOR ACID GAS AND DUST/MIST/FUME
OR SELF-CONTAINED BREATHING APPARATUS WITH FULL FACE SHIELD.
EYE PROTECTION: ANSI APPROVED SAFETY GLASSES/GOGGLES OR FULL FACE PIECE WITH RESPIRATOR
SKIN PROTECTION: RUBBER/NEOPRENE (USE COMPATIBLE CHEMICAL-RESISTANT GLOVES)
OTHER PROTECTIVE CLOTHING OR EQUIPMENT: LAB COAT/APRON, FLAME AND CHEMICAL RESISTANT
PROTECTIVE CLOTHING, EYE WASH, SAFETY SHOWER, AND HYGIENE FACILITIES FOR WASHING.
EXPOSURE GUIDELINES: NIOSH REL: TWA 0.002 MG/M3 (0.002 PPM) ST 0.006 MG/M3 (0.0006 PPM)
OSHA PEL- TWA 0.002 MG/M3
IDLH: 1 MG/M3 AS (Os)
CONVERSION: 1 PPM= 10.40 MG/M3
NIOSH: RTECS RN1140000
SECTION 9: PHYSICAL AND CHEMICAL PROPERTIES
APPEARANCE: COLORLESS YELLOW SOLID
ODOR: A SHARP CHLORINE LIKE ODOR
PHYSICAL STATE: SOLID
pH AS SUPPLIED: NO INFORMATION FOUND
pH (Other):
BOILING POINT:
F: 266.0掳
C: 130掳
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MATERIAL SAFETY DATA SHEET 07/08/2007
MELTING POINT:
F: 107.6掳
C: 42掳
FREEZING POINT:
F: N/A
C:
VAPOR PRESSURE (mmHg):
@ 27 DEGREE C: 1.5 kPa
VAPOR DENSITY (AIR = 1):
@ 8.8
SPECIFIC GRAVITY (H2O = 1):
@ 5.10
EVAPORATION RATE: NO INFORMATION FOUND
BASIS (=1):
SECTION 9: PHYSICAL AND CHEMICAL PROPERTIES (con鈥檛)
SOLUBILITY IN WATER: 6%@ 77 DEGRESS F
PERCENT SOLIDS BY WEIGHT: N/A
PERCENT VOLATILE: N/A
BY WT/ BY VOL @
F: 70
C: 21
VOLATILE ORGANIC COMPOUNDS (VOC): NOT AVAILABLE
WITH WATER: LBS/GAL
WITHOUT WATER: LBS/GAL
MOLECULAR WEIGHT: 254.2
VISCOSITY: NL
SECTION 10: STABILITY AND REACTIVITY
STABLE UNSTABLE
STABILITY: STABLE
CONDITIONS TO AVOID (STABILITY): COMBUSTIBLE MATERIAL, HCl AND OXIDIZED AGENTS
INCOMPATIBILITY (MATERIAL TO AVOID): COMBUSTIBLE MATERIAL, HCl AND OXIDIZED AGENTS.
HAZARDOUS DECOMPOSITION OR BY-PRODUCTS: BEGINS TO SUBLIME BELOW BOILING POINT, CONTACT
WITH OTHER MATERIALS MAY CAUSE FIRE.
HAZARDOUS POLYMERIZATION: WILL NOT OCCUR
CONDITIONS TO AVOID (POLYMERIZATION): WILL NOT POLYMERIZE
SECTION 11: TOXICOLOGICAL INFORMATION
TOXICOLOGICAL INFORMATION: REPEATED OR PROLONGED CONTACT WITH SKIN MAY CAUSE DERMATITIS. THE
SUBSTANCE MAY CAUSE EFFECT ON THE KIDNEY.
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MATERIAL SAFETY DATA SHEET 07/08/2007
SECTION 12: ECOLOGICAL INFORMATION
ECOLOGICAL INFORMATION: THIS SUBSTANCE MAY BE HAZARDOUS TO THE ENVIRONMENT, SPECIAL ATTENTION
SHOULD BE GIVEN TO CRUSTACEA.
SECTION 13: DISPOSAL CONSIDERATIONS
WASTE DISPOSAL METHOD: CONSULT EPA, STATE AND LOCAL REGULATIONS FOR PROPER DISPOSAL/RECYCLE/
RECLAMATION NOTE: CHEMICAL ADDITIONS, PROCESSING, OR OTHERWISE ALTERING THIS MATERIAL MAY
MAKE THE WASTE MANAGEMENT INFORMATION PRESENTED ABOVE INCOMPLETE, INACCURATE, OR OTHERWISE
INAPPROPRIATE.
RCRA HAZARD CLASS: OSO4 IS A LISTED EPA HAZARDOUS WASTE-P087
SECTION 14: TRANSPORT INFORMATION
U.S. DEPARTMENT OF TRANSPORTATION INFORMATION REPORTED FOR PRODUCT/SIZE .5G
PROPER SHIPPING NAME: OSMIUM TETROXIDE
HAZARD CLASS: 6.1
ID NUMBER: 2471
PACKING GROUP: I
LABEL STATEMENT: POISON
WATER TRANSPORTATION
PROPER SHIPPING NAME:
HAZARD CLASS:
ID NUMBER: NOT AVAILABLE
PACKING GROUP:
LABEL STATEMENTS:
INTERNATIONAL (WATER, I.M.O.)
AIR TRANSPORTATION
PROPER SHIPPING NAME: OSMIUM TETROXIDE
HAZARD CLASS: 6.1
ID NUMBER: 2471
PACKING GROUP: I
LABEL STATEMENTS: POISION
SECTION 15: REGULATORY INFORMATION
U.S. FEDERAL REGULATIONS
TSCA (TOXIC SUBSTANCE CONTROL ACT): THIS CHEMICAL IS TSCA LISTED, AND IS ALSO
cGMP UNDER FDA FOR IVD TESTING.
CERCLA (COMPREHENSIVE RESPONSE COMPENSATION, AND LIABILITY ACT):
SARA TITLE III (SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT):
311/312 HAZARD CATEGORIES: NFPA RATING -HEALTH 4, FIRE 0,
REACTIVITY 鈥?1, OTHER: TOX
313 REPORTABLE INGREDIENTS: N/A
PAGE 5 OF 6
MATERIAL SAFETY DATA SHEET 07/08/2007
SECTION 16: OTHER INFORMATION
OTHER INFORMATION: NONE
PREPARATION INFORMATION: NONE
DISCLAIMER:
ELECTRON MICROSCOPY SCIENCES MAKES NO PRESENTATION AS TO THE ACCURACY OF THE
INFORMATION IN THE MSDS. THE INFORMATION IS BELIEVED TO BE CORRECT; HOWEVER, YOU
(THE CUSTOMER), SHOULD PERFORM YOUR OWN INVESTIGATION AND INDEPENDENT VERIFICATION.
IF YOU RESELL THE PRODUCT, YOU ARE RESPONSIBLE TO FORWARD THE INFORMATION IN THE
MSDS TO YOUR CUSTOMER.
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