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Section 1: Product Identification
   Chemical Name:       Tri-n-propylphosphine oxide, min. 98%    
   CAS Registry Number:       1496-94-2    
   Formula:       (n-C3H7)3PO    
   EINECS Number:       none    
   Chemical Family:       organophosphorus compound    
   Synonym:       Tri-n-propylphosphine oxide    

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Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title Compound       1496-94-2       100%       no data       no data    

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Section 3: Hazards Identification
   Harmful in contact with skin and if swallowed. The material is irritating to skin, eyes, and mucous membranes.
   Emergency Overview:
   Primary Routes of Exposure:       Ingestion, eyes, inhalation    
   Eye Contact:       Causes moderate irritation of the eyes    
   Skin Contact:       Causes moderate irritation of the skin. Harmful in contact with skin.    
   Inhalation:       The dust is irritating to the nose, mucous membranes and respiratory tract.    
   Ingestion:       Harmful if swallowed. May cause vomiting and diarrhea.    
   Acute Health Affects:       Harmful in contact with skin and if swallowed. Irritating to skin, eyes and respiratory tract.    
   Chronic Health Affects:       No information available on long-term chronic effects.    
   NTP:       No    
   IARC:       No    
   OSHA:       No    

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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
   Inhalation:
   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
   Ingestion:
   vomiting only if directed by medical personnel.

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SECTION 5: Fire Fighting Measures
   Flash Point:       not applicable    
   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 a NIOSH approved positive pressure self-contained
   Special Fire Fighting Procedures:
   breathing apparatus and full protective clothing.
   Hazardous Combustion and       In a fire may emit toxic organic fumes, carbon monoxide, carbon dioxide, and phosphorous pentoxide.    
   Decomposion Products:
   Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.

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SECTION 6: Accidental Release Measures
   Spill and Leak Procedures:       Small spills can be mixed with vermiculite or sodium carbonate and swept up.    

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SECTION 7: Handling and Storage
   Handling and Storage:       Store in a tightly sealed container. Keep away from heat and direct sunlight.    

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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 Respirator
   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.    

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SECTION 9: Physical and Chemical Properties
   Color and Form:       white xtl.    
   Molecular Weight:       176.24    
   Melting Point:       39°    
   Boiling Point:       280-282°C    
   Vapor Pressure:       no data    
   Specific Gravity:       no data    
   Odor:       sweetish odor    
   Solubility in Water:       slightly soluble    

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SECTION 10: Stability and Reactivity
   Stability:       moisture sensitive    
   Hazardous Polymerization:       no hazardous polymerization    
   Conditions to Avoid:       contact with strong oxidizing agents    
   Incompatibility:       oxidizing agents and halogens    
   Decomposition Products:       carbon dioxide, carbon monoxide, organic fumes, and phosphorus oxides.    

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SECTION 11: Toxicological Information
   Administration onto the skin (rabbit); Standard Draize test: 10 uL/24H. Adminstration into the eye (rabbit);
   RTECS Data:       Standard Draize test: 5 uL. Oral (rat); LD50: 1410 mg/kg. Oral (mouse) LD50: 1360 mg/kg. Administration onto    
   the skin (rabbit); LD50: 1130 mg/kg. Oral (rat); TDLo: 9300 mg/kg/30D-I.
   Carcinogenic Effects:       No data available    
   Mutagenic Effects:       No data available    
   Tetratogenic Effects:       No data available    

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SECTION 12: Ecological Information
   Ecological Information:       No information available    

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

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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    

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

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SECTION 16 - ADDITIONAL INFORMATION
N/A