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Product Name: Tetrabutyltin
Synonyms: Tetra-n-butyltin, Butylstannane
CAS Number: 1461-25-2
Recommended Use: Used as a raw material in the production of organotin compounds, stabilizers, and catalysts
Manufacturer/Supplier: Chemical manufacturer contact information should be included on the packaging label
Emergency Number: Refer to local poison control and company emergency contacts for immediate response
Hazard Classification: Flammable liquid (Category 3), Acute toxicity (oral, Category 4), Skin irritation (Category 2), Eye irritation (Category 2A), Aquatic acute toxicity (Category 1)
Signal Word: Danger
Hazard Statements: Flammable liquid and vapor. Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. Very toxic to aquatic life.
Pictograms: Flame, exclamation mark, environment
Precautionary Statements: Keep away from heat, sparks, open flames. Wear protective gloves and eye/face protection. Avoid release to the environment. Wash hands and skin after handling.
Chemical Name: Tetrabutyltin
Synonyms: Tetra-n-butyltin
CAS Number: 1461-25-2
Concentration: Approximately 98-100% by weight
Impurities: Trace amounts of other organotin compounds
Eye Contact: Rinse eyes cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. Get immediate medical attention.
Skin Contact: Remove contaminated clothing. Wash with plenty of soap and water. If irritation or rash develops, seek medical advice.
Inhalation: Move the exposed person to fresh air. Keep at rest and comfortable for breathing. If symptoms persist, get medical attention.
Ingestion: Rinse mouth. Do not induce vomiting. Seek immediate medical advice. If victim becomes unconscious, do not give anything by mouth.
Notes to Physician: Treat symptomatically. May cause central nervous system depression and liver/kidney effects.
Suitable Extinguishing Media: Dry chemical powder, foam, CO2, do not use water jets directly on the burning substance
Special Hazards: Vapors can form explosive mixtures with air. Burning may produce toxic fumes (carbon monoxide, tin oxides).
Protective Equipment for Firefighters: Full protective gear and self-contained breathing apparatus.
Advice for Firefighters: Move containers away from fire if safe. Cool with water spray to prevent rupture.
Personal Precautions: Use personal protection recommended in Section 8. Evacuate unnecessary personnel from the spill area.
Environmental Precautions: Do not let product enter drains, sewers, or surface water. Prevent further leakage if safe.
Containment and Clean-up: Absorb liquid with inert material (sand, vermiculite). Collect in appropriate containers for disposal. Do not use combustible material for cleanup.
Safe Handling: Avoid contact with eyes, skin, and clothing. Prevent inhalation of vapors. Use in well-ventilated areas with explosion-proof equipment.
Safe Storage: Store in tightly closed, original containers, in a cool, dry, well-ventilated area away from sources of ignition and incompatible materials (oxidizing agents, acids).
Specific Requirements: Label containers. Ground and bond storage and handling equipment to prevent static discharge.
Exposure Limits: No occupational exposure limits have been established. Use recommended exposure controls.
Engineering Controls: Use local exhaust and general ventilation. Provide eyewash stations and safety showers.
Personal Protective Equipment (PPE): Chemical-resistant gloves (e.g., nitrile), safety goggles, protective clothing, flame-resistant laboratory coat, suitable respiratory protection if ventilation is inadequate.
Hygiene Measures: Wash hands thoroughly after handling. Remove contaminated clothing and wash before reuse.
Physical State: Clear, colorless to pale yellow liquid
Odor: Faint, characteristic
Melting Point: -60°C
Boiling Point: 156–160°C (at 14 mmHg)
Flash Point: 65°C (closed cup)
Autoignition Temperature: 390°C
Flammability: Flammable liquid and vapor
Vapor Pressure: 0.33 mmHg at 25°C
Solubility: Insoluble in water, miscible with organic solvents
Density: 1.07–1.10 g/cm3 at 20°C
Chemical Stability: Stable under standard conditions if stored and handled properly
Possible hazardous reactions: Reacts with strong oxidizers, acids, alkalis, and strong bases
Conditions to Avoid: Heat, sparks, open flames, static electricity, moisture
Decomposition Products: Tin oxides, carbon oxides, toxic organic fumes
Likely Routes of Exposure: Inhalation, dermal, oral
Acute Toxicity: Oral LD50 (rat): 105 mg/kg
Skin Corrosion/Irritation: Causes irritation on prolonged contact
Serious Eye Damage/Irritation: Causes severe eye irritation
Sensitization: Not determined
Chronic Toxicity: May cause damage to organs through prolonged or repeated exposure. Can affect kidney, liver, and nervous system.
Carcinogenicity: Not classified as a carcinogen by IARC, NTP, or OSHA
Ecotoxicity: Very toxic to aquatic life (LC50 fish < 1 mg/L). Causes long-lasting adverse effects
Persistence and Degradability: Not readily biodegradable in the environment
Bioaccumulation Potential: High potential for bioaccumulation in aquatic organisms
Mobility in Soil: Expected to be immobile in soil due to hydrophobic character and binding to organic matter
Other Adverse Effects: May disrupt aquatic ecosystem balance. Handle carefully to avoid releases.
Waste Disposal Methods: Dispose of contents/container in agreement with local, regional, and national regulations. Do not pour into drains.
Container Handling: Empty containers retain product residue. Do not reuse containers. Puncture and fully drain before discarding.
Recommended Disposal: Incinerate in a chemical incinerator equipped with afterburner and scrubber.
UN Number: UN 2788
UN Proper Shipping Name: Tetrabutyltin
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Special Precautions for Transport: Keep containers tightly closed. Avoid rough handling and impacts. Check for leakage.
Marine Pollutant: Yes, classified as a marine pollutant under IMDG Code.
TSCA Status: Listed in the United States TSCA Inventory
REACH Registration: Registered under EU REACH as hazardous chemical
OSHA Hazards: Flammable, harmful, irritant
SARA Title III: Subject to reporting requirements under Sections 311/312 (Fire, Acute Health, Chronic Health hazard), Section 313 release reporting for toxic chemicals
Other Regulations: Subject to international chemical control laws. Local regulatory requirements may apply.
