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CAS No.: 12136-78-6
Formula: MoSi2
Exact Mass: 153.85900
Molecular Weight: 152.13100
PSA: 0.00000
LogP: -0.76160
Reference Price: $480/kg Inquiry Now

Section 1: Product Identification
   Chemical Name:       Molybdenum silicide (99+%-Mo)    
   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 Affects:       May be irritating to skin, eyes, mucous membranes and respiratory tract. Do not breath dust.    
   Chronic Health Affects:       No information available on long-term chronic effects.    
   NTP:       No    
   IARC:       No    
   OSHA:       No    

SECTION 4: First Aid Measures
   Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need
   Eye Exposure:
   assistance in keeping their eye lids open. Get immediate medical attention.
   Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if
   Skin Exposure:
   irritation persists.
   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.
   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.    
   If involved in a fire, fire fighters should be equipped with NIOSH approved positive pressure self-contained
   Special Fire Fighting Procedures:
   breathing apparatus and full protective clothing.
   Hazardous Combustion and       No hazardous combustion or decomposition products.    
   Decomposion Products:
   Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.

SECTION 6: Accidental Release Measures
   Small spills can be mixed with vermiculite, sodium carbonate or other suitable non combustible adsorbent and
   Spill and Leak Procedures:
   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.    
   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.
   Ventilation:       Material may form a fine dust. If possible, handle the material in an efficient fume hood.    
   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    


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