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Dimethoxydiphenylsilane
CAS No.: 6843-66-9
Synonyms:
Formula: C14H16O2Si
Exact Mass: 244.09200
Molecular Weight: 244.36100
PSA: 18.46000
LogP: 1.53580
Reference Price: $20,968/ton Inquiry Now
Dimethoxydiphenylsilane 6843-66-9 MSDS

Section 1: Product Identification
   Chemical Name:       Diphenyldimethoxysilane, min.97%    
   CAS Registry Number:       6843-66-9    
   Formula:       (C6H5)2Si(OCH3)2    
   EINECS Number:       229-929-1    
   Chemical Family:       organosilicon compounds    
   Synonym:       Dimethoxydiphenylsilane    

Section 2: Composition and Information on Ingredients
   Ingredient       CAS Number       Percent       ACGIH (TWA)       OSHA (PEL)    
   Title Compound       6843-66-9       100%       no data       no data    

Section 3: Hazards Identification
   Volatile liquid may cause mild irritation of skin, eyes, and respiratory system. Harmful by inhalation. Methanol
   Emergency Overview:
   vapor, in large amounts, may cause blindness, intoxication, dizziness, and coma.
   Primary Routes of Exposure:       Inhalation, ingestion, contact with skin and eyes.    
   Methanol: may cause severe irritation of the eyes. Delayed blindness may occur through atrophy of the optic
   Eye Contact:
   nerve.
   Skin Contact:       Dehydrating agent. Liquid may cause mild irritation of the skin.    
   Harmful by inhalation. Methanol vapor may be irritating to the respiratory tract and cause headache,
   Inhalation:
   dizziness, coma, and blindness.
   Ingestion will produce methanol which in large amounts may cause nausea, vomiting, headache, coma and
   Ingestion:
   death.
   Methanol may irritate the skin, eyes and respiratory tract. Harmful by inhalation. Large amounts cause blurred
   Acute Health Affects:
   vision, blindness, intoxication, dizziness, headache, nausea, coma and death.
   Siloxane polymer resulting from hydrolysis may evolve small amounts of formaldehyde with prolonged heating
   Chronic Health Affects:
   over 300 F in air. Formaldehyde is a skin and respiratory sensitized, irritant, and potential cancer hazard.
   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 soap and water. Remove contaminated clothes if necessary. Seek medical
   Skin Exposure:
   assistance if 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.
   Ingestion:       Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious).    

SECTION 5: Fire Fighting Measures
   Flash Point:       250°F    
   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       If involved in a fire this material may emit toxic organic fumes and silica dust.    
   Decomposion Products:
   Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.

SECTION 6: Accidental Release Measures
   Avoid contact with water. Small spills may be adsorbed into diatomaceous earth, sand, or other suitable
   Spill and Leak Procedures:
   adsorbent, and swept up.

SECTION 7: Handling and Storage
   Store in a tightly sealed container in a dry place. If container is left open, product may adsorb moisture from
   Handling and Storage:
   the atmosphere and release ethanol vapor.

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.    
   Ventilation:       Material may form a vapor upon exposure to air. 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 vapor upon exposure to air. if possible, handle the material in an efficient fume hood.    
   Additional Protection:       No additional protection required.    

SECTION 9: Physical and Chemical Properties
   Color and Form:       colorless liq.    
   Molecular Weight:       244.36    
   Melting Point:       no data    
   Boiling Point:       161°C/15 mm    
   Vapor Pressure:       no data    
   Specific Gravity:       1.0771    
   Odor:       no data    
   Solubility in Water:       reacts with water    

SECTION 10: Stability and Reactivity
   Stability:       moisture sensitive    
   Hazardous Polymerization:       no hazardous polymerization    
   Conditions to Avoid:       contact with moisture    
   Incompatibility:       oxidizing agents and halogens    
   Decomposition Products:       Carbon dioxide, carbon monoxide, organic vapors, soot, and metal oxides and carbonates.    

SECTION 11: Toxicological Information
   RTECS Data:       Inhalation (rat); LC: >42mg/m3/4H.    
   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 local, state and federal regulations.    

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    

SECTION 15: Regulatory Information
   TSCA:       Listed in the TSCA inventory.    
   SARA (Title 313):       Not reportable under SARA section 313.    
   Second Ingredient:       none    


SECTION 16 - ADDITIONAL INFORMATION
N/A

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