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CAS Number: 4766-57-8
Product Catalog

93-1451
Silicon › Tetrabutoxysilane, min. 97%
CAS Number: 4766-57-8
MDL Number: MFCD00009432
Molecular Formula: C16H36O4Si
Molecular Weight: 320.53
Chemical Formula: Si(OC4H9)4
Color and Form: colorless liq.
Note:  

Stability: moisture sensitive

Physical Characteristics: boiling point 115°C/3 mm, flash point 174°F, density 0.90

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Download This MSDS
SECTION 1: Product Identification
Chemical Name: Tetrabutoxysilane, min. 97%
Product Number: 93-1451
CAS Registry Number: 4766-57-8
Formula: Si(OC4H9)4
EINECS Number: 225-305-8
Chemical Family: organosilicon compounds
Synonym: Tetrabutylorthosilicate
SECTION 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title Compound 4766-57-8 100 no data no data
SECTION 3: Hazards Identification
Emergency Overview: Irritating to skin, eyes and respiratory tract.
Primary Routes of Exposure: Ingestion, inhalation, skin, eyes.
Eye Contact: Causes moderate to severe irritation of the eyes.
Skin Contact: Causes moderate irritation of the skin.
Inhalation: Inhalation of vapor causes coughing, laryngitis, shortness of breath, headache, dizziness, weakness, and drowsiness.
Ingestion: Ingestion may cause gastrointestinal distress, nausea vomiting and headache
Acute Health Effects: Irritating to skin, eyes, and respiratory tract. May be harmful through inhalation and ingestion.
Chronic Health Effects: Contact with moisture, as resulting from human contact, will produce n-butanol: This shows reproductive effects in animal studies.
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: 174°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: If involved in a fire, this material may emit toxic and corrosive fumes.
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. Keep away from heat.
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 will react with moisture. Handle under an inert atmosphere of nitrogen or argon.
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: 320.53
Melting Point: no data
Boiling Point: 115°C/3 mm
Vapor Pressure: no data
Specific Gravity: 0.9
Odor: characteristic odor
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: Water, strong acids, strong oxidizing agents and halogens
Decomposition Products: butanol, silicon dioxide, carbon monoxide, carbon dioxide, and organic fumes.
SECTION 11: Toxicological Information
RTECS Data: No information available in the RTECS files.
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): 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): 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: 7/28/2011

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