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Product Name: Trimethyltin Acetate
Chemical Formula: C5H12OSn
Synonyms: Acetic acid, trimethyltin salt; Trimethylstannyl acetate
CAS Number: 1066-45-1
Recommended Use: Laboratory chemicals, synthesis, research applications
Supplier Details: Supplier must provide accurate, up-to-date emergency contact numbers and mailing address
Emergency Telephone Number: Refer to supplier-specific emergency response hotline
GHS Classification: Acute Toxicity (Oral, Dermal, Inhalation) Category 2; Specific Target Organ Toxicity (Single Exposure) Category 2
Signal Word: Danger
Hazard Statements: Causes damage to central nervous system; fatal if inhaled or ingested; harmful in contact with skin
Pictograms: Skull and crossbones, health hazard symbol
Precautionary Statements: Avoid all contact with skin, eyes, and clothing; use only outdoors or with effective fume hood; wash hands thoroughly after handling; do not eat, drink, or smoke when using product
Potential Health Effects: Neurological impairment, respiratory irritation, CNS toxicity, nausea, vomiting, headaches, confusion
Chemical Name: Trimethyltin Acetate
Concentration: 97–100%
CAS Number: 1066-45-1
Impurities/Additives: Trace byproducts depending on synthesis route; supplier to specify
Molecular Weight: 206.87 g/mol
Other Components: No stabilizing agents reported; avoid mixing with incompatible substances
Inhalation: Remove to fresh air, provide supplemental oxygen if breathing becomes difficult, seek immediate medical attention
Skin Contact: Remove contaminated clothing, wash skin thoroughly with soap and water, consult physician in case of irritation
Eye Contact: Rinse cautiously with water for at least 15 minutes, lift eyelids occasionally, consult medical services
Ingestion: Do not induce vomiting, rinse mouth with water, seek professional medical care without delay
Most Important Symptoms: Seizures, severe headache, dizziness, loss of consciousness, potential paralysis
Notes to Physician: Treat symptomatically; consider effects on CNS; monitor respiratory, renal and hepatic function
Suitable Extinguishing Media: Dry chemical, CO2, foam; water spray for cooling containers exposed to flame
Unsuitable Extinguishing Media: Do not use straight water jets directly on burning product
Hazards During Fire: Highly toxic vapors and fumes including tin oxides and carbon monoxide
Fire-Fighter Protection: Wear self-contained breathing apparatus, full protective gear
Special Procedures: Isolate fire scene; evacuate downwind personnel; cool adjacent containers to prevent pressure build-up
Personal Precautions: Restrict access to the area, evacuate unnecessary personnel, wear chemical-resistant PPE including gloves, goggles, and self-contained breathing apparatus
Methods for Cleanup: Collect using inert absorbent material; avoid generating dust or aerosols; scoop into appropriate tightly sealed waste drums
Environmental Precautions: Prevent spillage from reaching drains, sewers, or water bodies; inform authorities in case of environmental contamination
Decontamination: Wash contaminated areas with dilute bleach solution, ventilate area thoroughly
Handling: Always handle in well-ventilated areas, preferably inside a chemical fume hood; avoid direct contact; use tools or utensils for transferring; avoid breathing fumes
Storage: Store in a cool, dry, well-ventilated place in tightly sealed, labeled containers; segregate from oxidizers, acids, and foodstuffs; restrict unauthorized access to storage area
Special Precautions: Maintain strict inventory control, periodic inspection for leaks or container damage
Engineering Controls: Use local exhaust ventilation, process enclosure, or other engineering controls to maintain airborne levels below recommended exposure limits
Personal Protection: Wear chemical splash goggles, impervious gloves (nitrile, neoprene), long-sleeved laboratory coats, and closed shoes; for large spills or high exposure risk, use self-contained breathing apparatus
Occupational Exposure Limits: ACGIH TLV: 0.1 mg/m3 (Tin compounds, as Sn); OSHA PEL: 0.1 mg/m3 (as Sn)
Hygiene Measures: No food, drink, or smoking in work area; wash hands and face after handling; change contaminated clothing immediately
Appearance: White to off-white crystalline powder
Odor: Slightly acetic
Melting Point: Approximately 120–130°C
Boiling Point: Decomposes before boiling
Solubility: Soluble in organic solvents (alcohols, ethers), slight solubility in water
Density: 1.55–1.60 g/cm3 (approximate)
Vapor Pressure: Data not precisely established; low volatility at room temperature
pH: Not determined
Partition Coefficient: Log Kow not established
Other Data: May sublime at elevated temperatures; becomes unstable with moisture over prolonged periods
Chemical Stability: Stable under recommended storage and handling conditions
Potentially Hazardous Reactions: Reacts with oxidizing agents, strong acids, alkali metals
Decomposition Products: Toxic tin oxides, methyl-tin compounds, carbon monoxide, carbon dioxide
Conditions to Avoid: Moisture, heat, sunlight, incompatible substances
Polymerization: No hazardous polymerization expected
Acute Toxicity: Oral LD50 in rats reported as less than 25 mg/kg
Skin Corrosion/Irritation: Causes burns, possible absorption through skin
Serious Eye Damage/Irritation: Causes severe eye injury
Respiratory or Skin Sensitization: Sensitizer unlikely, but exposure leads to respiratory irritation
Carcinogenicity: Not listed as carcinogenic by NTP, IARC, or OSHA
Reproductive Toxicity: Data not definitive, but organotin compounds generally affect reproductive systems in animals
Other Effects: Symptoms include ataxia, hearing loss, psychiatric disturbances, persistent muscle rigidity
Aquatic Toxicity: Highly toxic to aquatic organisms; LC50 (fish, 96h) < 1 mg/L
Persistence and Degradability: Poorly degradable, persistent in environment
Bioaccumulation Potential: Expected to bioaccumulate due to tin core
Soil Mobility: Low; tends to bind strongly to sediments
Ecotoxicological Notes: Adverse effects on invertebrates and algae; avoid entry into waterways
Waste Treatment Methods: Collect as hazardous waste according to local, regional, and national regulations
Disposal of Product: Incinerate at a licensed chemical waste facility with flue gas scrubbing for tin compounds
Disposal of Contaminated Packaging: Triple rinse empty containers, then treat rinsate as hazardous waste; containers must not be reused
Additional Disposal Guidance: Consult national and regional environmental authorities for approved disposal procedures
UN Number: 2788
UN Proper Shipping Name: Organo-tin compound, solid, n.o.s. (Trimethyltin acetate)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: II
Labels: Toxic – Skull and Crossbones
Environmental Hazards: Marine pollutant—marked as environmentally hazardous for transport
Special Precautions for User: Notify carriers of toxic properties; ensure appropriate placarding; secure containers upright to prevent leaks
OSHA Hazard Communication: Covered under 29 CFR 1910.1200 as hazardous chemical
TSCA Inventory: Listed (confirm latest status with supplier)
EPCRA Section 313: Contains reportable toxic chemical (organotin compound)
RCRA Hazardous Waste: Designated as hazardous under US law (waste number U219)
Other Regulations: Subject to international shipment restrictions; check local environmental, occupational, and transport codes
California Proposition 65: No listing as of last regulatory update
