© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Common Name: Dibenzyldichlorosilane
Chemical Formula: C14H14Cl2Si
Substance Type: Organosilicon compound
Appearance: Colorless to pale yellow liquid, aromatic odor
Usage: Intermediary in organic synthesis and specialty chemicals
CAS Number: 2031-47-6
Hazard Classes: Acute toxicity, skin and eye corrosion
GHS Label: Corrosive, toxic
Hazard Statements: Causes severe burns to skin and eyes, harmful if swallowed or inhaled
Routes of Exposure: Absorption through skin, inhalation, ingestion
Long-term Consequences: Risk of chronic respiratory and dermal issues
Environmental Risks: Toxic to aquatic life
Main Component: Dibenzyldichlorosilane (Concentration: usually >98%)
Impurities: Small quantities of related organosilicon compounds
Hazardous Impurities: Benzyl chloride possible in trace amounts
Eye Contact: Immediate and thorough rinsing with water for at least 15 minutes, remove contact lenses if possible
Skin Contact: Remove contaminated clothing, flush skin under running water for 15 minutes
Inhalation: Move to fresh air, support breathing, seek medical assistance if symptoms show up
Ingestion: Rinse mouth, avoid inducing vomiting, go to emergency care
Key Advice: Always handle with protective gear to reduce direct exposure, don’t delay medical attention
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam
Fire Hazards: Flammable, releases hydrogen chloride gas when burned
Special Protective Equipment: Full suit and self-contained breathing apparatus
Decomposition Byproducts: Toxic fumes like silicon oxides, benzyl chloride, hydrogen chloride
Firefighting Guidance: Cool containers, keep distance, avoid inhaling fumes, toxic smoke poses danger to responders
Personal Precautions: Evacuate area, avoid breathing vapors, use full-face respirator
Spill Containment: Prevent entry into drains or soil, isolate spill with sand or inert absorbents
Cleanup Methods: Use non-sparking tools, collect in containers for safe disposal, ventilate affected area
Environmental Precautions: Notify authorities in case of large leaks, avoid runoff
Safe Handling Practices: Work in chemical fume hood, wear gloves and eye protection, avoid spray or mist formation
Storage Conditions: Store in cool, dry, well-ventilated place, keep tightly sealed in original container
Incompatible Materials: Avoid contact with water, alcohols, bases
Special Considerations: Keep away from food, avoid physical shock or container rupture
Engineering Controls: Use exhaust ventilation, closed systems where possible
Eye Protection: Chemical goggles or face shield
Skin Protection: Chemical-resistant gloves and lab coat
Respiratory Protection: Respirator approved for organic vapors
Occupational Exposure Limits: Not established for this compound, benchmark against similar organosilicons
Work Hygiene: Immediate washing after handling
Physical State: Liquid
Color: Colorless to pale yellow
Odor: Benzyl, pungent
Boiling Point: Approximately 320°C
Density: Around 1.15 g/cm³
Solubility: Reacts with water, insoluble
Vapor Pressure: Low under ambient conditions
Chemical Stability: Stable under recommended storage
Hazardous Reactions: Vigorous response with water, alcohols, or bases, generates heat and toxic gases
Incompatible Materials: Strong acids, strong bases, moisture
Decomposition Products: Benzyl chloride, silicon oxides, hydrogen chloride
Potential for Fire: Creates flammable mixtures in air under certain conditions
Routes of Exposure: Inhalation, skin contact, ingestion, eye contact
Acute Effects: Severe skin and eye burns, respiratory irritation
Chronic Effects: May lead to long-term respiratory and dermal damage
Toxicity Data: Limited published data, handle as potentially harmful
Symptoms: Redness, pain, difficulty breathing, chemical burns
Aquatic Toxicity: Expected to harm aquatic life due to hydrolysis byproducts
Persistence and Degradability: Degrades to problematic silicon and chlorine derivatives
Bioaccumulation: Not enough data, likely to pose risks in local ecosystems
Soil Mobility: Hydrolyzes in moist soil, can contaminate groundwater
Precaution: Limit disposal to environment, monitor emissions
Waste Treatment: Incinerate under controlled conditions, do not pour into sewer or surface water
Container Disposal: Clean and remove hazardous residue before recycling, follow local hazardous waste codes
Regulatory Inquiry: Confirm with authorities handling hazardous chemical waste
Shipping Classification: Corrosive liquid (Division 8, UN number depends on quantity and packaging)
Handling in Transport: Secure drums upright, avoid rough movement or exposure to moisture
Labeling: Clearly identify hazards, restrict public exposure during transit
Incident Preparation: Emergency procedures for spills or leaks must be available during shipping
Labeling Requirements: Hazard pictograms, risk phrases, precautionary statements
Chemical Control: Subject to regulation under local and international hazardous substances law
Restrictions: Only trained chemical handlers permitted in most jurisdictions
Inventory Status: Registered or restricted under major global chemical inventories
Employer Responsibility: Provide safety training, access to MSDS, personal protection resources
