| CAS Number: | 78-50-2 |
| MDL Number: | MFCD00002083 |
| Molecular Formula: | C24H51OP |
| Molecular Weight: | 386.65 |
| Chemical Formula: | (n-C8H17)3PO |
| Color and Form: | off-white xtl. |
| Note: | Surfactant for nanomaterial synthesis. |
Stability: hygroscopic
Safety: Hazardous
Physical Characteristics: flash point >230°F, density 0.88
| SECTION 1: Product Identification | |
|---|---|
| Chemical Name: | Trioctylphosphine oxide, min.90% TOPO |
| Product Number: | 15-6660 |
| CAS Registry Number: | 78-50-2 |
| Formula: | (n-C8H17)3PO |
| EINECS Number: | 201-121-3 |
| Chemical Family: | organophosphorus compound |
| Synonym: | Tri-n-octylphosphine oxide, |
| SECTION 2: Composition and Information on Ingredients | ||||
|---|---|---|---|---|
| Ingredient | CAS Number | Percent | ACGIH (TWA) | OSHA (PEL) |
| Title Compound | 78-50-2 | 100 | no data | no data |
| SECTION 3: Hazards Identification | |
|---|---|
| Emergency Overview: | The material is corrosive to skin, eyes and mucous membranes. Harmful if swallowed. |
| Primary Routes of Exposure: | Ingestion, eyes, inhalation |
| Eye Contact: | Causes burns to the eyes. |
| Skin Contact: | Causes burns to the skin. |
| Inhalation: | Corrosive to the nose, mucous membranes and respiratory tract. |
| Ingestion: | Harmful if swallowed. May cause vomiting and diarrhea. |
| Acute Health Effects: | Corrosive to skin, eyes and respiratory tract. |
| 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: | >230°F |
| Autoignition Temperature: | 281°C |
| Explosion Limits: | no data |
| Extinguishing Medium: | carbon dioxide, water, dry powder or foam |
| Special Fire Fighting Procedures: | If involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self-contained breathing apparatus and full protective clothing. |
| Hazardous Combustion and Decomposion Products: | If involved in a fire, this material may emit toxic organic fumes and vapors of phosphorus pentoxide. |
| 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 or sodium carbonate and swept up. |
| SECTION 7: Handling and Storage | |
|---|---|
| Handling and Storage: | Store in a tightly sealed container. Keep away from heat and direct sunlight. |
| 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 Respirator 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: | off-white xtl. |
| Molecular Weight: | 386.65 |
| Melting Point: | 51-52°C |
| Boiling Point: | 213°C (0.3 mm) |
| Vapor Pressure: | not applicable |
| Specific Gravity: | 0.88 |
| Odor: | very faint sweetish odor |
| Solubility in Water: | Insoluble |
| SECTION 10: Stability and Reactivity | |
|---|---|
| Stability: | hygroscopic |
| 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. |
| SECTION 11: Toxicological Information | |
|---|---|
| RTECS Data: | Administration onto the skin (rabbit); Standard Draize test:500 uL/24H (moderate). Administration into the eye (rabbit); Standard Draize test: 100mg/24H (severe). Administration onto the skin (rat); TDLo: TDLo:15 gm/kg/30D-I. |
| Carcinogenic Effects: | No data available |
| Mutagenic Effects: | No data available |
| Tetratogenic Effects: | No data available |
| SECTION 12: Ecological Information | |
|---|---|
| Ecological Information: | Avoid release to the environment. Very toxic to aquatic organisms. May cause long-term adverse effects in the aquatic environment. |
| SECTION 13: Disposal Considerations | |
|---|---|
| Disposal: | Dispose of according to federal, state, and local regulations. |
| SECTION 14: Transportation | |
|---|---|
| Shipping Name (CFR): | Corrosive solids, N.O.S. |
| Hazard Class (CFR): | 8 |
| Additional Hazard Class (CFR): | NA |
| Packaging Group (CFR): | III |
| UN ID Number (CFR): | UN# 1759 |
| Shipping Name (IATA): | Corrosive solid, N.O.S. |
| Hazard Class (IATA): | 8 |
| Additional Hazard Class (IATA): | NA |
| Packaging Group (IATA): | III |
| UN ID Number (IATA): | UN# 1759 |
| 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: | 5/14/2001 |
| Revision Date: | 12/27/2011 |