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CAS Number: 149-74-6
Product Catalog
93-1415
Silicon › Methylphenyldichlorosilane, min. 97%| CAS Number: | 149-74-6 |
| MDL Number: | MFCD00000490 |
| Molecular Formula: | C7H8Cl2Si |
| Molecular Weight: | 191.11 |
| Chemical Formula: | (CH3)(C6H5)SiCl2 |
| Color and Form: | colorless liq. |
| Note: |
Stability: moisture sensitive
Safety: Hazardous
Physical Characteristics: boiling point 205°C, flash point 181°F, density 1.187
| SECTION 1: Product Identification | |
|---|---|
| Chemical Name: | Methylphenyldichlorosilane, min. 97% |
| Product Number: | 93-1415 |
| CAS Registry Number: | 149-74-6 |
| Formula: | (CH3)(C6H5)SiCl2 |
| EINECS Number: | 205-746-2 |
| Chemical Family: | organosilicon compound |
| Synonym: | Phenylmethyldichlorosilane |
| SECTION 2: Composition and Information on Ingredients | ||||
|---|---|---|---|---|
| Ingredient | CAS Number | Percent | ACGIH (TWA) | OSHA (PEL) |
| Title Compound | 149-74-6 | 100 | no data | no data |
| SECTION 3: Hazards Identification | |
|---|---|
| Emergency Overview: | Corrosive hydrogen chloride gas and liquids released upon contact with moisture causing burns to skin, eyes and mucous membranes. May be harmful if swallowed or inhaled. |
| Primary Routes of Exposure: | Ingestion, inhalation, skin, eyes. |
| Eye Contact: | Corrosive to eyes. Causes eye burns and corneal damage |
| Skin Contact: | Contact with moisture of skin produces corrosive hydrogen chloride. |
| Inhalation: | Inhalation may cause inflammation of the respiratory tract, edema and chemical pneumonitis. Inhalation may be fatal. |
| Ingestion: | Corrosive to mouth throat and stomach. May cause dizziness, nausea, vomiting, pain and stomach upset. |
| Acute Health Effects: | Contact with skin, eyes and mucous membranes causes burns. Ingestion causes burns to the gastrointestinal tract. Inhalation may be fatal due to inflammation, edema and chemical pneumonitis. |
| 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: | 181°F |
| Autoignition Temperature: | no data |
| Explosion Limits: | no data |
| Extinguishing Medium: | carbon dioxide or dry powder |
| Special Fire Fighting Procedures: | Fire fighters should be equipped with a NIOSH approved positive pressure self-contained breathing apparatus and full protective clothing. |
| Hazardous Combustion and Decomposion Products: | Combustible. 'If involved in a fire this material may emit toxic organic fumes and silica dust particulate. |
| Unusual Fire or Explosion Hazards: | 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. Sweep up the material and dispose of properly. |
| SECTION 7: Handling and Storage | |
|---|---|
| Handling and Storage: | Handle and store the material under an inert atmosphere of nitrogen or argon. |
| 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 reacts with water producing corrosive and toxic HCl fumes. To minimize exposure 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: | colorless liq. |
| Molecular Weight: | 191.11 |
| Melting Point: | no data |
| Boiling Point: | 205°C |
| Vapor Pressure: | no data |
| Specific Gravity: | 1.187 |
| Odor: | not determined |
| Solubility in Water: | reacts with water |
| SECTION 10: Stability and Reactivity | |
|---|---|
| Stability: | moisture sensitive |
| Hazardous Polymerization: | no hazardous polymerization |
| Conditions to Avoid: | contact with water |
| Incompatibility: | Water, strong bases, strong oxidizing agents and halogens |
| Decomposition Products: | carbon monoxide, carbon dioxide, silicon dioxide and organic fumes. |
| SECTION 11: Toxicological Information | |
|---|---|
| RTECS Data: | Intraperitoneal(rat); LDLo: 100mg/kg. Inhalation (mouse); LCLo: 30mg/m3/2H. Intraperitoneal (mouse); LDLo: 100mg/kg. Subcutaneous (mouse); LDLo: 100mg/kg. Inhalation (mammal-species unspecified); LC50: 150mg/m3. Inhalation (rat); TCLo: 6mg/m3/3H/58W-I. |
| 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): | Methylphenyldichlorosilanes |
| Hazard Class (CFR): | 8 |
| Additional Hazard Class (CFR): | NA |
| Packaging Group (CFR): | II |
| UN ID Number (CFR): | UN# 2437 |
| Shipping Name (IATA): | Methylphenyldichlorosilanes |
| Hazard Class (IATA): | 8 |
| Additional Hazard Class (IATA): | NA |
| Packaging Group (IATA): | II |
| UN ID Number (IATA): | UN# 2437 |
| 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: | 11/14/2002 |
| Revision Date: | 7/29/2011 |
