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CAS Number: 7440-04-2
Product Catalog

76-3000
Osmium › Osmium powder (99.8%)
CAS Number: 7440-04-2
MDL Number: MFCD00011147
Molecular Formula: Os
Molecular Weight: 190.20
Chemical Formula: Os
Color and Form: 100-200 mesh
Note:  

Physical Characteristics: melting point 3000°C, boiling point 5027°C, density 22.48

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SECTION 1: Product Identification
Chemical Name: Osmium powder (99.8%)
Product Number: 76-3000
CAS Registry Number: 7440-04-2
Formula: Os
EINECS Number: 231-114-0
Chemical Family: metal or element
Synonym: none
SECTION 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title Compound 7440-04-2 100 no data no data
SECTION 3: Hazards Identification
Emergency Overview: May be irritating to skin, eyes and mucous membranes. Dust may be harmful by inhalation and ingestion.
Primary Routes of Exposure: Ingestion, inhalation of dust
Eye Contact: May cause slight to mild irritation of the eyes
Skin Contact: May cause slight to mild irritation of the skin.
Inhalation: Dust may be irritating to the nose, mucous membranes and respiratory tract. Dust may be harmful by inhalation.
Ingestion: No specific information is available on the physiological effects of ingestion.
Acute Health Effects: Dust may be irritating to skin, eyes and respiratory tract. If osmium tetroxide vapor is formed eye, skin, and respiratory toxicity is possible.
Chronic Health Effects: No information available on health effects of prolonged or repeated exposure to osmium metal. If osmium tetroxide is formed severe damage to eyes, skin and respiratory tract can result. .
NTP: No
IARC: No
OSHA: No
SECTION 4: First Aid Measures
Eye Exposure: Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need assistance in keeping their eye lids open. Get immediate medical attention.
Skin Exposure: Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if irritation persists.
Inhalation: Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Ingestion: Seek medical attention immediately. Keep victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel.
SECTION 5: Fire Fighting Measures
Flash Point: not applicable
Autoignition Temperature: not applicable
Explosion Limits: not applicable
Extinguishing Medium: None. Material is non-flammable.
Special Fire Fighting Procedures: No special fire fighting procedures required for this material.
Hazardous Combustion and Decomposion Products: Toxic osmium tetroxide could be present in gasses.
Unusual Fire or Explosion Hazards: May self-ignite if wetted with alcohols or related organics.
SECTION 6: Accidental Release Measures
Spill and Leak Procedures: Small spills can be mixed with vermiculite or sodium carbonate and swept up.
SECTION 7: Handling and Storage
Handling and Storage: Store in a tightly sealed container. Handle fine powders in a well-ventilated area.
SECTION 8: Exposure Controls and Personal Protection
Eye Protection: Always wear approved safety glasses when handling a chemical substance in the laboratory.
Skin Protection: Wear protective clothing and gloves.
Ventilation: Material may form or contain a fine dust that may become airborne during handling. If possible, handle the material in an efficient fume hood.
Respirator: If handling material in the form of a fine dust and ventilation is not available, a respirator should be worn. The use of respirators requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134.
Additional Protection: No additional protection required
SECTION 9: Physical and Chemical Properties
Color and Form: 100-200 mesh
Molecular Weight: 190.2
Melting Point: 3000°C
Boiling Point: 5027°C
Vapor Pressure: not applicable
Specific Gravity: 22.48
Odor: none
Solubility in Water: Insoluble
SECTION 10: Stability and Reactivity
Stability: Air and moisture stable solid.
Hazardous Polymerization: no hazardous polymerization
Conditions to Avoid: storage in air may cause toxic volatile osmium tetroxide to form.
Incompatibility: Oxygen, Oxidizing agents, halogens, hydrogen peroxide, nitric acid and hypochlorites
Decomposition Products: With oxygen, highly toxic volatile osmium tetroxide may be formed slowly from powder even at room temperature.
SECTION 11: Toxicological Information
RTECS Data: Intravenous (dog); LDLo: 17 mg/kg.
Carcinogenic Effects: No data available
Mutagenic Effects: No data available
Tetratogenic Effects: No data available
SECTION 12: Ecological Information
Ecological Information: No data available
SECTION 13: Disposal Considerations
Disposal: Dispose of according to local, state and federal regulations.
SECTION 14: Transportation
Shipping Name (CFR): Non-hazardous
Hazard Class (CFR): NA
Additional Hazard Class (CFR): NA
Packaging Group (CFR): NA
UN ID Number (CFR): NA
Shipping Name (IATA): Non-hazardous
Hazard Class (IATA): NA
Additional Hazard Class (IATA): NA
Packaging Group (IATA): NA
UN ID Number (IATA): NA
SECTION 15: Regulatory Information
TSCA: Listed in the TSCA inventory.
SARA (Title 313): Title compound not listed.
Second Ingredient: none
Third Ingredient: none
SECTION 16: Other Information
Disclaimer: The information herein is believed to be accurate and reliable as of the date compiled. However, Strem Chemicals, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information.
Preparation Date: 12/10/2000
Revision Date: 2/10/2012

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