© 2026 Nanjing Finechem Holdings Co., Ltd,
All Right Reserved
Name: Dicofol
Chemical Formula: C14H9Cl5O
Common Uses: Most often used as an acaricide on food crops, ornamental plants, and in public health pest control
Appearance: Off-white to beige solid, faint chemical odor
Other Names: 2,2,2-Trichloro-1,1-bis(4-chlorophenyl)ethanol
Hazard Classification: Harmful by inhalation, ingestion, and skin contact
Risks: Severe irritation to eyes, skin, and respiratory tract; classified as possible carcinogen; may cause central nervous system depression and liver injury on prolonged exposure
Environmental Hazards: Extremely toxic to aquatic organisms and may cause long-term adverse effects in aquatic environments
Signal Word: Danger
GHS Pictograms: Skull and crossbones, exclamation mark, environmental hazard
Active Ingredient: Dicofol (≥97%)
Impurities: May contain DDT as trace contaminant due to manufacturing process; other impurities are generally unspecified but present in low amounts
Inhalation: Remove the exposed person to fresh air. Provide oxygen if breathing is difficult.
Skin Contact: Remove contaminated clothing and shoes. Wash affected skin thoroughly with soap and water.
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes. Seek medical help.
Ingestion: Seek immediate medical attention. Do not induce vomiting without instructions from medical personnel.
Symptoms: Nausea, headache, dizziness, confusion, eye and skin irritation
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, foam, water spray
Hazardous Combustion Products: Hydrogen chloride, phosgene, carbon oxides, chlorine gas
Firefighting Advice: Use full protective gear including self-contained breathing apparatus, stay upwind
Fire/Explosion Hazard: Burning may produce toxic fumes; can form flammable mixtures with air
Personal Precautions: Evacuate unnecessary personnel, wear appropriate respiratory and skin protection
Spill Cleanup: Prevent further discharge, collect spilled material in dry, clean containers and arrange for safe disposal
Environmental Precautions: Avoid discharge to water systems, soil, or drains; notify authorities if large spill occurs
Decontamination: Wash area thoroughly with water and detergent
Handling: Wear appropriate protective equipment, avoid creating dust or spray, do not eat or drink while using
Storage: Store in locked, cool, dry, and well-ventilated area; keep away from food and animal feed
Incompatibility: Keep away from oxidizers, acids, and alkalis
Engineering Controls: Use fume hoods, local exhaust, or general ventilation to minimize workplace exposure
Personal Protection: Chemical-resistant gloves, face shield or goggles, long-sleeved clothing, appropriate respiratory protection in poorly ventilated settings
Exposure Limits: No established occupational exposure limits in many jurisdictions; given its toxicity, minimize exposure as much as possible
Physical State: Solid
Color: Off-white to pale beige
Boiling Point: Decomposes before boiling
Melting Point: Around 78°C
Solubility: Poorly soluble in water; more soluble in organic solvents like acetone or ethanol
Vapor Pressure: Low
Odor: Faint chemical odor
Chemical Stability: Stable under normal conditions, but decomposes at high temperature
Reactivity: Can react with strong oxidizing agents, acids, and alkalis
Decomposition Products: Can produce toxic fumes such as hydrogen chloride, carbon oxides
Acute Toxicity: Harmful by inhalation, ingestion, and skin contact; LD50 (oral, rat): 89–600 mg/kg depending on formulation
Chronic Effects: Prolonged exposure may damage liver and nervous system, possible carcinogenic and reproductive risk
Irritation: Can cause skin and eye irritation
Sensitization: Cases of skin sensitization have been recorded
Aquatic Toxicity: Highly toxic to fish, daphnia, and other aquatic organisms, due to persistent and bioaccumulative properties
Persistence and Degradability: Not readily biodegradable, can persist in soils and sediments
Bioaccumulation: Tends to accumulate in fat tissues of living organisms, biomagnifies in food chains
Mobility: Limited mobility in soil, but can be transported in runoff
Waste Disposal: Collect as hazardous waste; high temperature incineration in chemical incinerators equipped with afterburner and scrubbers is recommended
Precautions: Do not discharge into sewers, lakes, rivers, or other surface waters
Contaminated Packaging: Treat containers as hazardous waste
UN Classification: Hazardous for transport, Marine pollutant
Packing Group: III (varies by country and formulation), toxic solid, organic, n.o.s.
Special Precautions: Label as toxic and environmental hazard, do not transport with food or animal feed
Regulation Status: Banned or severely restricted in many countries under the Stockholm Convention due to its persistence, toxicity, and bioaccumulation; listed as hazardous substance in many national regulations
Worker Protections: Farms and applicators must follow specific restrictions to protect workers and the general public
Reporting: Large spills or releases require notification to environmental authorities in most jurisdictions
