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Product Name: Pentachlorophenol
Chemical Formula: C6Cl5OH
Synonyms: PCP, Penta, Pentachlorophenol (Technical), 2,3,4,5,6-Pentachlorophenol
CAS Number: 87-86-5
Recommended Use: Wood preservative, pesticide, fungicide
Supplier/Manufacturer Identification: Name, address, and emergency contact number required by law, typically found on the supplied label and shipping documentation
Emergency Telephone Numbers: Local, national, and company-specific numbers are available for immediate response in case of chemical emergencies involving spills, exposure, or fires
UN Number: UN2020
Classification: Acute Toxicity (oral, dermal, inhalation), Skin Irritant, Eye Irritant, Carcinogen (IARC Group 2B), Environmental Hazard
Hazard Statements: Harmful if swallowed, in contact with skin, or inhaled. May cause cancer through prolonged or repeated exposure. Causes skin and eye irritation. Toxic to aquatic life with long lasting effects.
Signal Word: Danger
Precautionary Statements: Avoid breathing dust, vapors, or spray. Avoid contact with eyes and skin. Do not eat, drink, or smoke during use. Wear protective gloves, clothing, and eye protection. Use only outdoors or in well-ventilated areas.
Chemical Name: Pentachlorophenol
CAS Number: 87-86-5
Concentration: Typically 86%-90% in technical grade product; remainder includes impurities such as polychlorinated dibenzo-p-dioxins and dibenzofurans
Impurities: Dioxins and furans present as trace contaminants, regulated due to toxicity and environmental impact.
General Information: Immediate medical attention is crucial. Remove contaminated clothing.
Inhalation: Move person to fresh air; keep at rest and warm. Seek medical attention immediately. If not breathing, provide artificial respiration using barrier protection if possible.
Skin Contact: Remove contaminated clothing promptly. Wash exposed skin thoroughly with soap and water. Seek healthcare if irritation or symptoms develop.
Eye Contact: Rinse cautiously with water for several minutes, keeping eyelids open. Remove contact lenses if easy to do. Seek medical attention if irritation persists.
Ingestion: Call poison control or physician immediately. Do not induce vomiting unless directed by medical personnel. Rinse mouth if conscious.
Symptoms: Exposure may cause headaches, sweating, fever, chills, breathing difficulty, and in severe cases, seizures, unconsciousness, or death.
Suitable Extinguishing Media: Use water spray, foam, dry chemical, or carbon dioxide. Avoid high-pressure streams.
Specific Hazards: Material can produce highly toxic gases, including polychlorinated dibenzo-p-dioxins, hydrochloric acid, and carbon monoxide, when burned.
Protective Equipment: Firefighters require full protective clothing and self-contained breathing apparatus.
Firefighting Instructions: Move containers from fire area if possible without risk. Water runoff may contain contamination. Contain fire water to minimize impact.
Personal Precautions: Evacuate area. Wear chemical-resistant gloves, impervious clothing, eye and face protection, and respiratory protection.
Environmental Precautions: Prevent further leakage or spillage if safe to do so. Do not allow into sewers or waterways. Notify local authorities if large quantities enter the environment.
Methods for Clean-up: Absorb spill with inert material like sand or soil. Scoop up and place into suitable chemical waste containers. Decontaminate area with detergent and water. Dispose of in accordance with local regulations.
Handling: Keep container closed when not in use. Handle in designated, well-ventilated areas, away from food, drinks, and animal feed. Do not eat, drink, or smoke where this substance is used. Wash hands thoroughly after handling.
Storage Conditions: Store in original containers, tightly sealed, in cool, dry, and well-ventilated locations. Separate from incompatible substances like strong oxidizers and acids. Label clearly and keep away from children and unauthorized personnel.
Incompatibilities: Avoid contact with strong acids, bases, and oxidizing agents.
Special Notes: Store waste and contaminated materials in designated containers. Observe environmental and health regulation for storage duration and disposal.
Occupational Exposure Limits: OSHA PEL: 0.5 mg/m³ (skin); ACGIH TLV: 0.5 mg/m³ (skin) for workplace exposure
Engineering Controls: Use local exhaust ventilation to control exposure. Eye wash and safety showers should be easily accessible.
Personal Protective Equipment (PPE): Chemical resistant gloves, impervious protective clothing, safety goggles or face shields, and organic vapor respirators or air-purifying respirators if exposure limits may be exceeded.
Hygiene Measures: Avoid skin contact. Do not eat, drink, or smoke during use. Clean all PPE after handling.
Environmental Controls: Monitor air and water for PCP concentrations in occupational and surrounding environments. Prevent release to surface water, groundwater, and soil.
Appearance: White to light tan crystalline solid
Odor: Phenolic, slightly medicinal
Molecular Weight: 266.3 g/mol
Melting Point: 190°C
Boiling Point: 309°C
Solubility: Slightly soluble in water; readily soluble in organic solvents
Vapor Pressure: 1.1 x 10-4 mm Hg (20°C)
Density: 1.98 g/cm³
pH: 5.0–6.5 (acidic aqueous suspension)
Flash Point: Not easily flammable
Stability: Stable under recommended storage conditions
Chemical Stability: Stable in closed containers under recommended storage conditions.
Decomposition: Can generate toxic fumes, including dioxins, furans, and hydrochloric acid, especially during combustion.
Conditions to Avoid: Extreme heat, open flame, prolonged exposure to light.
Incompatible Materials: Strong oxidizing agents, acids, and alkalis.
Hazardous Reactions: Violent reaction with strong oxidizers; releases toxic vapors if heated strongly.
Acute Toxicity: Highly toxic by ingestion, inhalation, and skin absorption. LD50 (oral, rat) ~50 mg/kg. LD50 (dermal, rabbit) ~96 mg/kg.
Chronic Effects: Causes liver, kidney, and immune system damage after long-term exposure. Possible human carcinogen (IARC 2B).
Symptoms of Exposure: Increased body temperature, sweating, headache, weakness, nausea, dizziness, convulsions, cardiac and respiratory arrest.
Target Organs: Liver, kidneys, blood, central nervous system.
Sensitization: May cause allergic skin reactions.
Other Toxic Effects: Can penetrate intact skin and cause systemic poisoning. Combining exposure with alcohol or certain drugs can worsen toxicity.
Mutagenicity and Carcinogenicity: Linked to genetic mutations and cancer in laboratory testing.
Ecotoxicity: Very toxic to aquatic organisms, including fish, invertebrates, and algae. Effects may be long lasting in environments.
Persistence and Degradability: Persistent in soil and water. Does not degrade easily in natural environments.
Bioaccumulative Potential: Accumulates in aquatic organisms and terrestrial wildlife.
Mobility in Soil: Moderately mobile; may leach to groundwater, particularly in sandy or disturbed soils.
Other Adverse Effects: Potential for secondary poisoning of birds and mammals that ingest contaminated aquatic life.
Waste Treatment Methods: Incinerate at high temperatures using approved hazardous waste facilities. Chemicals and containers must be handled as hazardous waste.
Container Disposal: Decontaminate before recycling or landfilling. Do not reuse empty containers.
Local Regulations: Follow all national and local environmental disposal regulations. Consult environmental authorities for disposal guidance.
Sewage Disposal: Strictly forbidden. Do not release to drains or watercourses.
UN Number: UN2020
Proper Shipping Name: Pentachlorophenol
Transport Hazard Class: 6.1 (Toxic Substance)
Packing Group: II
Labels Required: Toxic, Environmental Hazard
Special Precautions: Must be transported in tightly sealed containers in compliance with ADR, RID, IMDG, IATA or other relevant regulations.
Environmental Hazards: Marine pollutant. Accidental release during transportation must be reported to authorities.
OSHA: Classified as highly hazardous in workplace settings; strict handling and exposure regulations in place
EPA: Listed as a hazardous substance under CERCLA and a restricted use pesticide
REACH: Substance of very high concern (SVHC) due to persistence, bioaccumulation, and toxicity
International Regulations: Regulated under the Stockholm Convention due to risk of persistent organic pollutants
Other Labeling Requirements: Requires hazard communication under GHS, including signal words, pictograms, and standard safety phrases
Workplace Restrictions: Only qualified personnel permitted to handle bulk quantities. Health surveillance recommended for exposed workers.
Community Right-to-Know: Reportable threshold quantities apply, requiring notification to local authorities of large-scale storage or release.
Banned Uses: Not permitted for residential, recreational, or public use in multiple jurisdictions due to cumulative health risks and environmental impact.
