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CAS Number: 121-45-9
Product Catalog
15-6550
Phosphorus › Trimethylphosphite, 97%| CAS Number: | 121-45-9 |
| MDL Number: | MFCD00008350 |
| Molecular Formula: | C3H9O3P |
| Molecular Weight: | 124.08 |
| Chemical Formula: | (CH3O)3P |
| Color and Form: | colorless liq. |
| Note: |
Stability: air sensitive
Safety: Hazardous
Physical Characteristics: boiling point 110-112°C, flash point 82°F, density 1.052
| SECTION 1: Product Identification | |
|---|---|
| Chemical Name: | Trimethylphosphite, 97% |
| Product Number: | 15-6550 |
| CAS Registry Number: | 121-45-9 |
| Formula: | (CH3O)3P |
| EINECS Number: | 204-471-5 |
| Chemical Family: | organophosphorus compound |
| Synonym: | Trimethyoxyphosphine |
| SECTION 2: Composition and Information on Ingredients | ||||
|---|---|---|---|---|
| Ingredient | CAS Number | Percent | ACGIH (TWA) | OSHA (PEL) |
| Title Compound | 121-45-9 | 100 | 2ppm | no data |
| SECTION 3: Hazards Identification | |
|---|---|
| Emergency Overview: | Flammable liquid and vapor. Inhalation may cause dizziness and headache. Irritating to eyes, skin and respiratory tract. Harmful if swallowed. Ingestion may cause nausea and vomiting. |
| Primary Routes of Exposure: | Eye, skin and inhalation |
| Eye Contact: | Causes mild irritation of the eyes. |
| Skin Contact: | Causes slight to mild irritation of the skin. Prolonged contact may dry the skin and lead to rashes or more severe irritation. |
| Inhalation: | Irritating to the nose, mucous membranes and respiratory tract. Can cause dizziness, headaches, nausea and impaired coordination. |
| Ingestion: | Harmful if swallowed. Irritating to mouth throat and stomach. May cause dizziness, nausea, vomiting, pain and stomach upset. |
| Acute Health Effects: | Irritating to skin, eyes and respiratory tract. Harmful if swallowed. More severe effects (ingestion and inhalation) are dizziness, nausea, vomiting. |
| Chronic Health Effects: | No information available on long term chromic 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 will need assistance in keeping their eye lids open. Get immediate medical attention. |
| Skin Exposure: | Wash the affected area immediately with water. Remove contaminated clothing 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 if directed by medical personnel. |
| SECTION 5: Fire Fighting Measures | |
|---|---|
| Flash Point: | 82°F |
| Autoignition Temperature: | no data |
| Explosion Limits: | no data |
| Extinguishing Medium: | dry chemical, carbon dioxide, or foam. |
| Special Fire Fighting Procedures: | Fire fighters should be equipped with a NIOSH-approved positive pressure self-contained breathing and full protective clothing. |
| Hazardous Combustion and Decomposion Products: | carbon dioxide, carbon monoxide, phosphorus pentoxide. |
| Unusual Fire or Explosion Hazards: | Flammable liquid. No unusual fire or explosion hazards. |
| SECTION 6: Accidental Release Measures | |
|---|---|
| Spill and Leak Procedures: | Small spills can be absorbed into vermiculite or other suitable adsorbent. Larger spills must be contained in order to avoid contamination of the soil, sewers systems or bodies of water. Eliminate all potential ignition sources. Absorb the material into sawdust or clay. Emergency team must wear a self-contained breathing apparatus. |
| SECTION 7: Handling and Storage | |
|---|---|
| Handling and Storage: | Store in a cool, dry, well-ventilated area away from heat and direct sunlight. Keep containers tightly sealed. This product will react with atmospheric moisture and chemically degrade. Transfer material under an inert atmosphere of nitrogen argon or very dry air. |
| SECTION 8: Exposure Controls and Personal Protection | |
|---|---|
| Eye Protection: | Always wear safety glasses. If pouring or transferring this substance wear a face shield for additional protection. |
| Skin Protection: | Wear protective clothing and gloves. Consult with glove manufacturer to determine the proper type of glove. |
| Ventilation: | Work with this product in a well-ventilated area, preferably a 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: | colorless liq. |
| Molecular Weight: | 124.08 |
| Melting Point: | no data |
| Boiling Point: | 110-112°C |
| Vapor Pressure: | 17mm (20°C) |
| Specific Gravity: | 1.052 |
| Odor: | strong odor |
| Solubility in Water: | slightly soluble |
| SECTION 10: Stability and Reactivity | |
|---|---|
| Stability: | air and moisture sensitive liquid |
| Hazardous Polymerization: | no hazardous polymerization |
| Conditions to Avoid: | prolonged contact with air |
| Incompatibility: | oxidizing agents and halogens |
| Decomposition Products: | carbon dioxide, carbon monoxide, phosphorus oxide, and organic fumes |
| SECTION 11: Toxicological Information | |
|---|---|
| RTECS Data: | Administration onto the skin (rabbit); Standard Draize test: 500 mg. Administration onto the skin (mammal-species unspecified); Standard Draize test: 500 mg. Administration into the eye (mammal-species unspecified); Standard Draize test: 100 mg. Oral (rat); LD50: 1600 mg/kg. Inhalation (rat); LCLo: 32700 mg/m3/6H. Inhalation (mouse); LCLo: 32700 mg/m3/6H. Intraperitoneal (mouse); LD50: 4180 mg/kg. Administration onto the skin (rabbit); LD50: 2600 mg/kg. Inhalation (guinea pig); LC: >32700 mg/m3/6H. Inhalation (rat); TCLo: 500 ppm/7.5H/8W-I. Oral (rat); TDLo: 1640 mg/kg. |
| 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. For purposes of shipping waste material see the section 14 in this document on transportation. |
| SECTION 14: Transportation | |
|---|---|
| Shipping Name (CFR): | Trimethyl phosphite |
| Hazard Class (CFR): | 3 |
| Additional Hazard Class (CFR): | NA |
| Packaging Group (CFR): | III |
| UN ID Number (CFR): | UN# 2329 |
| Shipping Name (IATA): | Trimethyl phosphite |
| Hazard Class (IATA): | 3 |
| Additional Hazard Class (IATA): | NA |
| Packaging Group (IATA): | III |
| UN ID Number (IATA): | UN# 2329 |
| 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: | 9/18/2000 |
| Revision Date: | 8/03/2011 |
