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Tantalum disilicide
CAS No.: 12039-79-1
Formula: Si2Ta
Exact Mass: 236.90200
Molecular Weight: 237.11900
PSA: 0.00000
LogP: -0.76160
Reference Price: $926/kg Inquiry Now
Tantalum disilicide 12039-79-1 MSDS

Section 1: Product Identification
   Chemical Name:       Tantalum silicide (99.5%-Ta)    
   CAS Registry Number:       12039-79-1    
   Formula:       TaSi2    
   EINECS Number:       234-902-2    
   Chemical Family:       metal silicide    
   Synonym:       Tantalum disilicide    

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title compound       12039-79-1       100%       10mg/m3(Ta)       5mg/m3(Ta)    

Section 3: Hazards Identification
   Emergency Overview:       May be irritating to skin, eyes and mucous membranes.    
   Primary Routes of Exposure:       Ingestion, inhalation.    
   Eye Contact:       May cause slight to mild irritation of the eyes.    
   Skin Contact:       May cause slight to mild irritation of the skin.    
   Inhalation:       Do not breathe dust. Dust may be irritating to the nose, mucous membranes and respiratory tract.    
   Ingestion:       No information is available on the physiological effects of ingestion.    
   Acute Health Affects:       Dust may be irritating to the nose, mucous membranes and respiratory tract.    
   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:       dry chemical, carbon dioxide, or foam.    
   If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure
   Special Fire Fighting Procedures:
   self-contained breathing apparatus and full protective clothing.
   Hazardous Combustion and       If involved in a fire this material may emit irritating dusts.    
   Decomposion Products:
   Unusual Fire or Explosion Hazards: No unusual fire or explosion hazard.

SECTION 6: Accidental Release Measures
   Spill and Leak Procedures:       Sweep up the material and dispose of properly.    

SECTION 7: Handling and Storage
   Handling and Storage:       Store the material in a sealed container.    

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 appropriate chemical resistant gloves and protective clothing.    
   Ventilation:       Material may form a fine dust. If possible, handle the material in an efficient fume hood.    
   If in form of 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.
   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:       -325 mesh gray pwdr. (avg. 10 microns or less)    
   Molecular Weight:       237.12    
   Melting Point:       2200°    
   Boiling Point:       no data    
   Vapor Pressure:       not applicable    
   Specific Gravity:       9.14    
   Odor:       none    
   Solubility in Water:       insoluble    

SECTION 10: Stability and Reactivity
   Stability:       air and moisture stable    
   Hazardous Polymerization:       No hazardous polymerization.    
   Conditions to Avoid:       formation of a fine dust    
   Incompatibility:       mineral acids    
   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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