ELECTRONIC SPACE PRODUCTS INTERNATIONAL
1050 Benson Way, Ashland, OR 97520
Toll Free (800) 638-2581 * Fax (541) 488-8313
E-Mail: sales@espimetals.com
MATERIAL SAFETY DATA SHEET
I PRODUCT IDENTIFICATION
Osmium Metallic element
Trade Name: Chem ical Nature:
Os 7440-0 4-2
Molecu lar F orm ula: CAS #:
II HAZAR DOUS INGRED IENTS
Haz ardous C omp onents % OSHA/PEL ACGIH/TLV
Osmium 0-100 N/E N/E
III PHYSICAL DATA
5027 oC 3045 oC
Boiling Point: Melting Point:
N/A Essentially 0
Vapo r Density: Vapor Pressure:
22.6 gm/cc 0
Specific Gravity: % V olatiles:
Bluish-white metal, no odo r. Insoluble
Appearance and Odor: Solubility in H 2O:
IV FIRE AND EXPLOSION H AZARDS DATA
Flash Point: N/A Autoignition Temperature: No data
Flam mab le Limits: Upper: N/A Lower: N/A
Extingu ishing Media: Flamma ble solid. If involved in a fire do not use water, carbon d ioxide or halogenated ex tinguishers. Use dry
chemical extinguishing agents, dry sand or dry ground dolomite.
Special Fire Fighting Procedures: Firefighters must wear NIOSH/MSHA approved self contained breathing apparatus, flame and
chemical resistant clothing; hats, boots and gloves. If without risk, remove material from fire area.
Unusual Fire and Explosion Hazards: May emit toxic fumes upon decomposition.
V HEALTH HAZARD INFORMATION
Effects of Exposure:
Osm ium is considered poisono us and shou ld be handled w ith caution. Effects include ocular disturbances, respiratory
difficulties, heavy metal poisoning.
Acute E ffects:
Inhalation: Irritating to mucous m embranes and u pper respiratory tract. M ay cau se asthm atic cond ition, bronc hitis.
Ingestion: May cause gastrointestinal irritation. No other effects known.
Skin : Causes irritation, dermatitis, ulceration of the skin.
Eye: Causes sev ere eye irritation, oc ular disturbances, con junctivitis. May cause blindness.
Chro nic Effects:
Inhalation: Bron chitis
Ingestion: None known
Skin : Derma titis
Eye: May cause blindness.
Other Health Hazards: Adverse health effects are due ma inly to OsO 4
Most Likely Routes of Entry: Ingestion
Target Organs: May cause kidney damage, route of overexposure not known.
Medical Conditions Generally Aggravated by Exposure: None known
Carcino genicity: NTP: No IARC: No OSHA: No EPA: No
EMERG ENCY AND FIRST AID PROCEDURES:
INHALATION: No specific information available, one should obtain medical attention.
INGESTION: No data available but one should obtain medical attention.
SK IN: Remove contaminated clothing, flood skin with large amounts of water. If irritation persists seek medical attention.
EYE: Imm ediately flush eyes, including under eyelids, with large amounts of water for at least 15 minutes. Call a physician.
VI REACTIVITY DATA
Stability: Stable
Co nditio ns to Av oid: Extre me heat.
Inco mp atible Materials: ClF 3, OF2, halogens, phosphorus, oxygen, oxidizers, acids, organic solvents, NH4.
Haz ardous D ecomposition Produc ts: Oxides of osm ium . Osm ium dust re acts vio lently w ith ClF 3 and OF 2. On heatin g in air it
gives off poisonous fumes of osmium tetraoxide.
Hazardous Polymerization: Will not occur
VII SPILL OR LEAK PROC EDURES
Steps to be taken if Spilled or Released: Wearing full protective equipment, cover spill with dry sand or vermiculite. Mix well and
carefully transfer to a container.
Waste Disposal Method: Dispose o f in accord ance w ith State, Federal and L ocal regu lations.
VIII SPECIAL PROTECTION INFORMATION
Respiratory Protection: NIOSH /MSH A app roved high efficiency particle respirator.
Ventilation: Handle in a glove box under a dry, inert atmosphere to prevent oxidation.
Protective Gloves: Rub ber fo r all con tact.
Eye/Face Protection: ANSI app roved safety goggles.
Other Protective Equipment: Protective gear suitable to prevent contamination.
IX SPECIAL PRECAUTIONS
Precautions to Be Taken in Handling and Storage: Keep containe r tightly closed. Sto re in coo l, dry, well-ventilated area. W ash
thoroughly after use.
-Osmium 2-
Wo rk Practices: Lab coat and apron, flame and chemical resistant coveralls, eyewash capable of sustained flushing, safety drench
shower and hygienic facilities for washing.
Danger: Flam ma ble, irritates lung s and ey es.
The abo ve inform ation is believ ed to be co rrect, but do es no t purp ort to b e all inclu sive an d sha ll be used only as a gu ide.
ESPI shall not be held liab le for any d am age resulting from h and ling o r from contact with the abov e pro duc t.
Issued by: S. Dierks
Date: October 2002
-Osmium 3-
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