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93-4212
Molybdenum › Molybdenum silicide (99+%-Mo)
CAS Number: 12136-78-6
MDL Number: MFCD00151535
Molecular Formula: MoSi2
Molecular Weight: 152.13
Chemical Formula: MoSi2
Color and Form: black pwdr.
Note:  

Physical Characteristics: density 6.31

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Print This MSDS
SECTION 1: Product Identification
Chemical Name: Molybdenum silicide (99+%-Mo)
Product Number: 93-4212
CAS Registry Number: 12136-78-6
Formula: MoSi2
EINECS Number: 235-231-8
Chemical Family: metal silicide
Synonym: Molybdenum disilicide
SECTION 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title compound 12136-78-6 100 10mg/m3( as Mo) 15mg/m3 (as Mo)
SECTION 3: Hazards Identification
Emergency Overview: May be irritating to skin and eyes and respiratory tract.
Primary Routes of Exposure: Ingestion, inhalation
Eye Contact: May be a mild to severe irritant to the eyes.
Skin Contact: May cause slight to mild irritation of the skin.
Inhalation: Do not breath dust. Inhalation of powder may lead to irritation of the respiratory tract.
Ingestion: No information is available on the physiological effects of ingestion.
Acute Health Effects: May be irritating to skin, eyes, mucous membranes and respiratory tract. Do not breath dust.
Chronic Health Effects: No information available on long-term chronic effects.
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 the victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel.
SECTION 5: Fire Fighting Measures
Flash Point: no data
Autoignition Temperature: no data
Explosion Limits: no data
Extinguishing Medium: carbon dioxide, dry powder or foam.
Special Fire Fighting Procedures: If involved in a fire, fire fighters should be equipped with NIOSH approved positive pressure self-contained breathing apparatus and full protective clothing.
Hazardous Combustion and Decomposion Products: No hazardous combustion or decomposition products.
Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.
SECTION 6: Accidental Release Measures
Spill and Leak Procedures: Small spills can be mixed with vermiculite, sodium carbonate or other suitable non combustible adsorbent and swept up.
SECTION 7: Handling and Storage
Handling and Storage: No special precautions needed in handling and storage..
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. Consult with glove manufacturer to determine the proper type of glove.
Ventilation: Material may form a fine dust. If possible, handle the material in an efficient fume hood.
Respirator: If ventilation is not available a respirator should be worn. The use of respirators requires a Respiratory 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: black powder
Molecular Weight: 152.13
Melting Point: no data
Boiling Point: no data
Vapor Pressure: no data
Specific Gravity: 6.31
Odor: none
Solubility in Water: insoluble
SECTION 10: Stability and Reactivity
Stability: air and moisture stable.
Hazardous Polymerization: No hazardous polymerization.
Conditions to Avoid: none
Incompatibility: oxidizing agents
Decomposition Products: none
SECTION 11: Toxicological Information
RTECS Data: No information available in the RTECS files.
Carcinogenic Effects: no data
Mutagenic Effects: no data
Tetratogenic Effects: no data
SECTION 12: Ecological Information
Ecological Information: No information 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: 9/11/2003
Revision Date: 11/03/2003

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