© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Chemical Name: Triphenyltin Hydroxide
Common Names: TPT-OH, Fungitox
Chemical Formula: C18H15OSn
Appearance: White crystalline powder with a slight odor
Uses: Primarily found in agriculture as a fungicide, targeted at a range of plant pathogens, mostly for use on potatoes and peanuts. Presence in commercial products and potential for exposure occurs mainly during handling and application in the field.
Hazard Class: Identified as acutely toxic, presenting notable risk through skin contact, inhalation, or ingestion
Effects: Eye and skin irritation, central nervous system effects, nausea, vomiting, muscle weakness
Environmental Risk: Toxic to aquatic life, possible biomagnification
Signal Words: Danger, warning labels needed for safe handling
Exposure Routes: Mainly dermal and inhalation, with rare but possible oral intake for those directly working with cargo
Main Ingredient: Triphenyltin Hydroxide (CAS No. 76-87-9)
Typical Purity: Exceeds 95% in technical form
Impurities: Minor constituents from manufacturing, rarely significant enough to impact overall safety profile for users during handling in field or laboratory settings
Inhalation: Move affected person to fresh air, monitor for respiratory distress, seek medical attention if symptoms persist
Eye Contact: Rinse eyes thoroughly with clean water, avoid rubbing, medical advice required if irritation holds
Skin Contact: Wash area with soap and water, remove contaminated clothing, don't reuse garments before decontamination
Ingestion: Rinse mouth, avoid inducing vomiting, medical attention is crucial because of the toxic profile
Additional: Supportive care may be required for respiratory or neurological symptoms due to potential for acute poisoning
Suitable Extinguishing Media: Dry chemical powder, foam, carbon dioxide
Hazards When Burning: Combustion may produce irritating or toxic fumes including tin oxides and organic vapors
Protective Equipment: Firefighters need self-contained breathing apparatus and full protective clothing, due to risk of inhaling toxic decomposition products
Precautions: Avoid runoff from firefighting entering drains or water bodies, as aquatic toxicity is high
Spill Response: Evacuate area, ventilate enclosed spaces, avoid dust generation, wear protective equipment
Cleanup: Collect by scooping into containers, do not wash down with water
Disposal: Treat as hazardous waste, avoid uncontrolled release into drains or soil
Personal Precautions: Use gloves, goggles, and respiratory protection; minimize skin exposure during cleanup
Environmental Precautions: Prevent entry to surface water, drains, and sewers using dikes or absorbent barriers when possible
Handling: Only trained handlers should manage the substance, using proper safety gear, avoid dust creation, good personal hygiene after working with powders
Storage: Store in a cool, dry, ventilated area, containers kept tightly closed, out of direct sunlight and locked or clearly marked to prevent unauthorized access
Incompatibles: Keep away from strong oxidizers and acids, risk of hazardous reaction exists if combined
Other Guidance: Isolate from food, feed, and water supplies, never re-use containers for other purposes
Limits: Occupational exposure limits not universally established, but low permissible levels recommended due to toxicity
PPE: Chemical-resistant gloves, splash-proof goggles, NIOSH-approved respirators for dust or sprays, full protective suit during extensive handling
Engineering Controls: Use local exhaust ventilation, process enclosures
Hygiene: Wash hands, arms, and face thoroughly after handling, no food/drink in work area, immediate shower facilities helpful for larger handling operations
State: Solid at room temperature
Color: White to off-white crystalline form
Odor: Mild, somewhat chemical
Melting Point: Ranges from about 177°C to 179°C
Solubility: Practically insoluble in water, more easily taken up by organic solvents like acetone and chloroform
Vapor Pressure: Low under normal conditions, not easily volatilized at ambient temperature
Specific Gravity: Denser than water, tends to settle in dust or suspension
Stability: Stable under standard storage but decomposes if exposed to acids, bases, or strong oxidizing chemicals
Hazardous Reactions: Avoid prolonged exposure to moist conditions or heat, as this increases breakdown and release of toxic compounds
Decomposition: Releases tin oxides, organic vapors, small molecules on high heat
Polymerization: Does not polymerize under ordinary use in agriculture or laboratory settings
Acute Toxicity: Highly toxic by mouth and harmful by skin contact
Chronic Effects: Evidence of neurotoxicity, immune dysfunction, and possible reproductive effects with repeated exposure
Symptoms: Nausea, headaches, muscle tremors, vision disturbances, skin rashes
Carcinogenicity: No conclusive proof of carcinogenic risk from standard agricultural use, but concerns exist over long-term exposure
Absorption: Can penetrate skin barrier, especially in humid or damaged skin; inhalation risk from dust or fine particles
Aquatic Toxicity: Extremely toxic to fish and invertebrates; persistence in sediment and water increases long-term impact
Bioaccumulation: Possibility of buildup through the food chain, raising ecosystem and human health risk
Persistence: Doesn’t break down quickly in soil or water, lingering in agricultural land for extended time
Soil Impact: Residual buildup possible after repeated use, impacts non-target organisms and pollinators
Responsible Use: Monitoring and restrictions in sensitive habitats crucial to limit environmental footprint
Waste Management: Hazardous waste handling required, avoid landfill or direct incineration in uncontrolled settings
Recommended Methods: Incineration in approved facilities with flue gas cleaning, or secure chemical landfill as local law allows
Container Disposal: Empty containers thoroughly, triple rinse and puncture before disposal according to hazardous waste regulation
Community Risk: Prevent entry into municipal waste streams and drains to lower exposure in wider population
International Classification: Regulated as hazardous material for land, air, and sea transport due to toxic and environmental risk
Proper Shipping Name: Pesticide, solid, toxic, organic, n.o.s. (contains Triphenyltin Hydroxide)
Packing Group: Usually Class III or II depending on concentration and quantity
Precautions: Secure upright, avoid breakage or spillage, label all containers clearly
Spillage During Transit: Emergency procedures set by local transportation law, but most require environmental protection and notification of authorities
Usage Restrictions: Approved only for certain crops and conditions in many countries, strict limits on residues and worker exposure
Registration: Active ingredient subject to ongoing review and restriction under environmental and labor law
Labeling: Requirements include hazard pictograms, signal words, and first aid instructions
Occupational Health: Regular monitoring where used frequently, health surveillance often required for workers
Public Health: Limitations based on regional risk assessments, especially near water sources and food production chains
