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Section 1: Product Identification
   Chemical Name:       Trimethylsilane, 97%    
   CAS Registry Number:       993-07-7    
   Formula:       (CH3)3SiH    
   EINECS Number:       213-603-0    
   Chemical Family:       organosilicon compounds    
   Synonym:       Silane, trimethyl    

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title Compound       993-07-7       100%       no data       no data    

Section 3: Hazards Identification
   Emergency Overview:       May be irritating to skin, eyes, and respiratory tract.    
   Primary Routes of Exposure:       Inhalation, skin, eyes.    
   Eye Contact:       May cause moderate irritation of the eyes.    
   Skin Contact:       May cause slight to mild irritation of the skin.    
   May cause irritation to the nose, mucous membranes and respiratory tract. May be harmful through inhalation.
   Ingestion:       No specific information is available on the physiological effects of ingestion.    
   Acute Health Affects:       May be irritating to skin, eyes and mucous membranes. May be harmful through inhalation.    
   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:       <-4°F    
   Autoignition Temperature:       no data    
   Explosion Limits:       no data    
   Extinguishing Medium:       carbon dioxide or dry powder    
   Fire fighters should be equipped with a NIOSH approved positive pressure self-contained breathing apparatus
   Special Fire Fighting Procedures:
   and full protective clothing.
   Hazardous Combustion and       Burning material may emit toxic and corrosive fumes.    
   Decomposion Products:
   Unusual Fire or Explosion Hazards: Highly flammable. Material readily ignited with flames, sparks, friction or heat.

SECTION 6: Accidental Release Measures
   The material will evaporate rapidly at room temperature. Leave the area unless fitted with a self-contained
   Spill and Leak Procedures:       breathing apparatus or until the vapors have dispersed. Larger spills can be absorbed into vermiculite or other    
   suitable noncombustible adsorbent. Sweep up the material and dispose of properly.

SECTION 7: Handling and Storage
   Handling and Storage:       The material is stored in steel cylinder.    

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:       Handle the material in an efficient fume hood.    
   If 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:       Handle the material in an efficient fume hood.    
   Additional Protection:       No additional protection required.    

SECTION 9: Physical and Chemical Properties
   Color and Form:       gas    
   Molecular Weight:       74.2    
   Melting Point:       -135.9°    
   Boiling Point:       6.7°C    
   Vapor Pressure:       no data    
   Specific Gravity:       0.638 (6.7°)    
   Odor:       not determined    
   Solubility in Water:       insoluble    

SECTION 10: Stability and Reactivity
   Stability:       air and moisture stable    
   Hazardous Polymerization:       no hazardous polymerization    
   Conditions to Avoid:       contact with heat or ignition sources.    
   Incompatibility:       Strong oxidizing agents and halogens    
   Decomposition Products:       carbon monoxide, carbon dioxide, silicon dioxide, and organic fumes.    

SECTION 11: Toxicological Information
   RTECS Data:       No information available in the RTECS files.    
   Carcinogenic Effects:       No data available    
   Mutagenic Effects:       No data available    
   Tetratogenic Effects:       No data available    

SECTION 12: Ecological Information
   Ecological Information:       No information available    

SECTION 13: Disposal Considerations
   Disposal:       Dispose of according to federal, state, and local regulations.    

SECTION 14: Transportation
   Shipping Name (CFR):       Liquefied Gas, Flammable, N.O.S.    
   Hazard Class (CFR):       2.1    
   Additional Hazard Class (CFR):       NA    
   Packaging Group (CFR):       NA    
   UN ID Number (CFR):       UN# 3161    
   Shipping Name (IATA):       Liquefied Gas, Flammable, N.O.S.    
   Hazard Class (IATA):       2.1    
   Additional Hazard Class (IATA):       NA    
   Packaging Group (IATA):       NA    
   UN ID Number (IATA):       UN# 3161    

SECTION 15: Regulatory Information
   TSCA:       Listed in the TSCA inventory.    
   SARA (Title 313):       Title compound not listed.    
   Second Ingredient:       none    


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